Metallic coated
Steel for forming

Our cold-rolled forming steels are available in a wide range of grades and corrosion-resistant coatings.

Each grade is designed for specific applications and comes with a choice of surface quality. Extensive dimensional choice provides opportunities for cutting waste and maximising yield.

MagiZinc® improves corrosion resistance with half the thickness of conventional zinc coatings, increasing yield, reducing cost and facilitating stronger, lighter products. It offers improved automotive corrosion protection and higher process efficiency.

Applications

  • Automotive components
  • Building components
  • Domestic appliances
  • Drain pipes
  • Electrical goods
  • Tubes and sections
     
Tata Steel hot dip galvanizing line in IJmuiden
Component containing a MagiZinc coating
Product specification
Steel for forming is currently available in the following grades

EN-Automotive-Product-Metallic coated-Forming-DX51D-GI/GA/ZM

DX51D-GI/GA/ZM
Specification details for DX51-GI/GA/ZM

EN-Automotive-Product-Metallic coated-Forming-All Grades Overview

Overview

Relationship with standards

 

Grade

VDA standard

VDA 239-100-16

European standard

EN 10346: 2015

DX51-GI/GA/ZM -

DX51D+Z/+ZF/+ZM

DX52-GI/GA/ZM CR1-GI/GA/ZM

DX52D+Z/+ZF/+ZM

DX53-GI/GA/ZM CR2-GI/GA/ZM

DX53D+Z/+ZF/+ZM

DX54-GI/GA/ZM CR3-GI/GA/ZM

DX54D+Z/+ZF/+ZM

DX56-GI/GA/ZM CR4-GI/GA/ZM

DX56D+Z/+ZF/+ZM

DX57-GI/GA/ZM CR5-GI/GA/ZM

DX57D+Z/+ZF/+ZM

DX58-GI/GA/ZM 1 -

-

1. Not in standard. Tata Steel’s own specification.

EN-Automotive-Product-Metallic coated-All Grades Coatings Surface aspects

Coatings and Surface aspects

Coatings

Three types of metallic coating are available:

  • Pure zinc. Galvanised steel (GI) is coated with an almost pure zinc coating (>99% zinc)
  • Zinc-iron alloy. Galvannealed steel (GA) is coated with a zinc coating containing approximately 8-12% iron
  • MagiZinc Auto. MagiZinc Auto steel (ZM) is coated with a zinc coating containing additional magnesium and aluminium.
     

Coating weight

Coating

Minimum

Maximum

Pure zinc (Z)

100 (7 µm/side)

600 (42 µm/side)

Zinc-iron (ZF)

100 (7 µm/side)

140 (10 µm/side)

MagiZinc (ZM)

70 (5 µm/side)

200 (14 µm/side)

Coating weight measured in g/m2 double-sided (µm, per side).

Surface condition

Surface condition complies with standard: EN 10346:2015. Galvanised steels are available in surface conditions with minimised spangle MB or MC. Galvannealed steels and MagiZinc Auto are available in surface conditions B or C.

Surface condition B: improved surface, suitable for unexposed parts

With this surface condition, small imperfections such as stretch levelling breaks, skin pass marks, slight scratches, indentations, surface structure, zinc run-off marks and light passivation stains are permissible.

Surface condition C: best quality surface, suitable for exposed parts

Surface condition C is obtained by skin passing. The controlled surface for the exposed side enables application of a uniform paint finish. The reverse surface has, at least, the characteristics of surface quality B.

Surface finish

Galvanised (GI) grades with surface condition MC are available with different levels of surface finish. For exposed body panels with stringent paint appearance requirements we offer ‘regular’ surface finish. For panels with the highest paint appearance requirements we recommend the premium surface finish Serica®.

Surface roughness

Metallic coated steel for automotive applications can be supplied in various grades of roughness to comply with individual customer norms. If no roughness is specified, roughness will be as shown in the table below

Roughness Ra (µm)
cut off 0.8mm cut off 2.5mm
0.6 - 1.9 0.7 - 2.2

​​​Surface treatments

The surface treatments available are oiling and T-treatment.

Oiling (O)

The material surface can be oiled with preservative oil. Other types of oil - for increasing strength or reducing weight – are available to help achieve your optimum performance parameters. Please contact us for details.

Tata Steel offers the following range of oiling levels:

Coating type Oiling level
Pure zinc (GI) 0.25 - 1.7 g/m2
Zinc-iron(GA) 0.5 - 1.5 g/m2
MagiZinc Auto(ZM) 0.25 - 1.0 g/m2

Other oiling levels are available on request.
 

T-treatment

Please contact us for further information.

Prime Lubrication Treatment (PLT)

Prime Lubrication Treatment facilitates the manufacturing of stamped components by minimising known issues in stamping and joining.

For further information please visit our dedicate Prime Lubrication Treatment (PLT) page.

 

 

EN-Automotive-Product-Metallic coated-Forming-DX51D-Properties

Properties

Properties


Mechanical properties

Metallic coated steel for forming has the following mechanical properties. These are measured transverse to the rolling direction.
Property range is indicated according to EN 10346, but properties meet equivalent VDA 239-100 specifications also.

  Grade DX51-GI/GA/ZM
Yield strength Re N/mm² -
Tensile strength Rm N/mm² 270 - 500
Elongation % 22
Min. r-value   -
Min. n-value   -
If the yield point is not pronounced, the values apply to the 0.2% - proof strength Rp0.2 ; if the yield strength is pronounced, the values apply to the lower yield point ReL.
Decreased minimum elongation values apply for product thickness t ≤ 0.50mm (minus 4 units) and for 0.50mm ≤ t ≤ 0.70mm (minus 2 units).
Elongation after fracture A uses test piece length L0 = 80 mm.
 

Chemical composition

Tata Steel complies with the following cast analysis:

  Grade DX51
C Max. 0.18
Mn Max. 1.20
P Max. 0.12
S Max. 0.045
Al Min. -
N Max. -
Ti Max. 0.30
All values in weight%.

EN-Automotive-Product-Metallic coated-Forming-DX51D-Dimensions

Dimensions

Dimensional capability

Galvanised (GI) products

Dimensions in mm.

Thickness Max. width
From - up to DX51
0.36 - 0.40 1370
0.40 - 0.55 1520
0.55 - 0.60 1590
0.60 - 0.65 1770
0.65 - 0.70 1870
0.70 - 0.75 1890
0.75 - 0.80 1990
0.80 - 1.70 2020
1.70 - 2.00 2000
2.00 - 2.50 1580
2.50 - 3.50 1540
3.50 - 3.60 1500
3.60 - 3.70 1450
3.70 - 3.85 1400
3.85 - 4.00 1350
The minimum width is 900 mm.
Widths smaller than 900 mm are available on request. Please contact us.
Surface conditions MB, MC are available, as well as Serica® premium surface finish.
Serica® availability can be found in our dedicated Serica page.
Please contact us on the availability of:
- specific coating weights
- surface condition MC with a thickness greater than 1.2 mm.
 

Galvannealed (GA) products

Dimensions in mm.

Thickness Max. width
From - up to DX51
0.50 - 0.60 1420
0.60 - 0.65 1700
0.65 - 1.45 1850
1.45 - 1.50 1850
1.50 - 1.60 1830
1.60 - 1.70 1710
1.70 - 1.75 1660
1.75 - 1.80 1620
1.80 - 1.90 1530
1.90 - 2.00 1440
The minimum width is 900 mm.
For DX57D, please contact us for available widths.
 

MagiZinc® (ZM) products

Dimensions in mm.

Thickness Max. width
From - up to DX51
0.40 - 0.45 1520
0.45 - 0.60 1520
0.60 - 1.20 1550
1.20 - 2.00 1550
The minimum width is 900 mm.
 

Tolerances

Tolerances comply with standard EN 10143 2006.
Tighter tolerances are available, please contact us for details.

EN-EngineeringAutomotive-Product-Metallic Coated-All Grades Shape and Dimensional Tolerances

Shape and dimensional tolerances

Tolerances on thickness

The tolerances comply with standard EN 10143: 2006.
Tighter tolerances are available on request.
Thickness tolerance availability is shown below:

Thickness tolerance

Availability

Full thickness tolerance

Available

Special thickness tolerance

Available

50% of full thickness tolerance

Refer before ordering

 

The following tolerances apply to the grades with a minimum value for the yield strength lower than 260N/mm².

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

> 0.40

≤ 0.60

± 0.04

± 0.05

± 0.06

± 0.035

± 0.040

± 0.045

> 0.60

≤ 0.80

± 0.05

± 0.06

± 0.07

± 0.040

± 0.045

± 0.050

> 0.80

≤ 1.00

± 0.06

± 0.07

± 0.08

± 0.045

± 0.050

± 0.060

> 1.00

≤ 1.20

± 0.07

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 1.20

≤ 1.60

± 0.10

± 0.11

± 0.12

± 0.060

± 0.070

± 0.080

> 1.60

≤ 2.00

± 0.12

± 0.13

± 0.14

± 0.070

± 0.080

± 0.090

> 2.00

≤ 2.50

± 0.14

± 0.15

± 0.16

± 0.090

± 0.100

± 0.110

> 2.50

≤ 3.00

± 0.17

± 0.17

± 0.18

± 0.110

± 0.120

± 0.130

> 3.00

≤ 5.00

± 0.20

± 0.20

± 0.21

± 0.15

± 0.16

± 0.17

> 5.00

≤ 6.50

± 0.22

± 0.22

± 0.23

± 0.17

± 0.18

± 0.19

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm.

 

The following tolerances apply to the steel grades with a minimum value for the yield strength 260N/mm² ≤ Rp0.2 < 360N/mm² and for grades DX51D and S550GD.

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.05

± 0.06

-

± 0.035

± 0.040

-

> 0.40

≤ 0.60

± 0.05

± 0.06

± 0.07

± 0.040

± 0.045

± 0.050

> 0.60

≤ 0.80

± 0.06

± 0.07

± 0.08

± 0.045

± 0.050

± 0.060

> 0.80

≤ 1.00

± 0.07

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 1.00

≤ 1.20

± 0.08

± 0.09

± 0.11

± 0.060

± 0.070

± 0.080

> 1.20

≤ 1.60

± 0.11

± 0.13

± 0.14

± 0.070

± 0.080

± 0.090

> 1.60

≤ 2.00

± 0.14

± 0.15

± 0.16

± 0.080

± 0.090

± 0.110

> 2.00

≤ 2.50

± 0.16

± 0.17

± 0.18

± 0.110

± 0.120

± 0.130

> 2.50

≤ 3.00

± 0.19

± 0.20

± 0.20

± 0.130

± 0.140

± 0.150

> 3.00

≤ 5.00

± 0.22

± 0.24

± 0.25

± 0.17

± 0.18

± 0.19

> 5.00

≤ 6.50

± 0.24

± 0.25

± 0.26

± 0.19

± 0.20

± 0.21

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm

 

The following tolerances apply to the steel grades with a minimum value for the yield strength 360N/mm² ≤ Rp0.2 ≤ 420N/mm².

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.05

± 0.06

-

± 0.040

± 0.045

-

> 0.40

≤ 0.60

± 0.06

± 0.07

± 0.08

± 0.045

± 0.050

± 0.060

> 0.60

≤ 0.80

± 0.07

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 0.80

≤ 1.00

± 0.08

± 0.09

± 0.11

± 0.060

± 0.070

± 0.080

> 1.00

≤ 1.20

± 0.10

± 0.11

± 0.12

± 0.070

± 0.080

± 0.090

> 1.20

≤ 1.60

± 0.13

± 0.14

± 0.16

± 0.080

± 0.090

± 0.110

> 1.60

≤ 2.00

± 0.16

± 0.17

± 0.19

± 0.090

± 0.110

± 0.120

> 2.00

≤ 2.50

± 0.18

± 0.20

± 0.21

± 0.120

± 0.130

± 0.140

> 2.50

≤ 3.00

± 0.22

± 0.22

± 0.23

± 0.140

± 0.150

± 0.160

> 3.00

≤ 5.00

± 0.22

± 0.24

± 0.25

± 0.17

± 0.18

± 0.19

> 5.00

≤ 6.50

± 0.24

± 0.25

± 0.26

± 0.19

± 0.20

± 0.21

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm.

 

The following tolerances apply to the steel grades with a minimum value for the yield strength 420N/mm² < Rp0.2 ≤ 900N/mm².

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.06

± 0.07

-

± 0.045

± 0.050

-

> 0.40

≤ 0.60

± 0.06

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 0.60

≤ 0.80

± 0.07

± 0.09

± 0.11

± 0.060

± 0.070

± 0.080

> 0.80

≤ 1.00

± 0.09

± 0.11

± 0.12

± 0.070

± 0.080

± 0.090

> 1.00

≤ 1.20

± 0.11

± 0.13

± 0.14

± 0.080

± 0.090

± 0.110

> 1.20

≤ 1.60

± 0.15

± 0.16

± 0.18

± 0.090

± 0.110

± 0.120

> 1.60

≤ 2.00

± 0.18

± 0.19

± 0.21

± 0.110

± 0.120

± 0.140

> 2.00

≤ 2.50

± 0.21

± 0.22

± 0.24

± 0.140

± 0.150

± 0.170

> 2.50

≤ 3.00

± 0.24

± 0.25

± 0.26

± 0.170

± 0.180

± 0.190

> 3.00

≤ 5.00

± 0.26

± 0.27

± 0.28

± 0.23

± 0.24

± 0.26

> 5.00

≤ 6.50

± 0.28

± 0.29

± 0.30

± 0.25

± 0.26

± 0.28

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm.

 

Tolerances on width

The tolerances on width comply with standard EN 10143: 2006
MagiZinc is not included in the standard, but fulfils EN 10143: 2006 requirements.
Tighter tolerances are available on request.

Tolerances in mm.

Nominal width w Normal tolerances Special tolerances (S)
600 ≤ w ≤ 1200 + 5
0
+ 2
0
1200 < w ≤ 1500 + 6
0
+ 2
0
1500 < w ≤ 1800 + 7
0
+ 3
0
w > 1800 + 8
0
+ 3
0

 

Dimensions and coil weights

Description Availability
Coil diameter inner 610mm
(508 mm available on request)
Coil diameter outer 10/7 x width max
1000mm min.
2500mm max.
Coil weight 30t max.
33t max available after consultation
Coil weight limited by maximum outer diameter
Maximum weight allowed by road/rail transport
Some products may have different coil weight ranges available
Usually a minimum coil weight up to 85% of the maximum coil weight can be requested
KIM: width ≤ 1200 mm 11.7 - 22.7 kg/mm width
KIM: 1200mm < width ≤ 1700 mm 11.6 - 21.7 kg/mm width
KIM: width > 1700 mm 11.0 kg/mm width and 11.6 - 21.7 kg/mm width
Minimum tonnage per order Refer to price list for order quantity details
Minimum order quantities may apply

 

EN-EngineeringAutomotive-Product-Metallic coated-All grades Further processing

Further processing

Further processing

We have a broad network of Tata Steel service centres across Europe, offering decoiling and slitting services from stock and against short lead times

Light gauge processing

Processing type Slitting Decoiling Blanking
Thickness range (mm) 0.2 - 7.0 0.3 - 6.0 0.3 - 6.0
Width range (mm) 10 - 2050 50 - 2600 200 - 2600
Length range - up to 6m up to 6m
Locations UK
Ireland
Netherlands
Germany
France
Spain
Sweden
Norway
Finland
UK
Ireland
Netherlands
Germany
France
Spain
Sweden
Norway
Finland
UK
Netherlands

For further information please visit our Service Centre webpages.

 

 

EN-Automotive-Product-Metallic coated-Forming-DX52D-GI/GA/ZM

DX52D-GI/GA/ZM
Specification details for DX52-GI/GA/ZM

EN-Automotive-Product-Metallic coated-Forming-All Grades Overview

Overview

Relationship with standards

 

Grade

VDA standard

VDA 239-100-16

European standard

EN 10346: 2015

DX51-GI/GA/ZM -

DX51D+Z/+ZF/+ZM

DX52-GI/GA/ZM CR1-GI/GA/ZM

DX52D+Z/+ZF/+ZM

DX53-GI/GA/ZM CR2-GI/GA/ZM

DX53D+Z/+ZF/+ZM

DX54-GI/GA/ZM CR3-GI/GA/ZM

DX54D+Z/+ZF/+ZM

DX56-GI/GA/ZM CR4-GI/GA/ZM

DX56D+Z/+ZF/+ZM

DX57-GI/GA/ZM CR5-GI/GA/ZM

DX57D+Z/+ZF/+ZM

DX58-GI/GA/ZM 1 -

-

1. Not in standard. Tata Steel’s own specification.

EN-Automotive-Product-Metallic coated-All Grades Coatings Surface aspects

Coatings and Surface aspects

Coatings

Three types of metallic coating are available:

  • Pure zinc. Galvanised steel (GI) is coated with an almost pure zinc coating (>99% zinc)
  • Zinc-iron alloy. Galvannealed steel (GA) is coated with a zinc coating containing approximately 8-12% iron
  • MagiZinc Auto. MagiZinc Auto steel (ZM) is coated with a zinc coating containing additional magnesium and aluminium.
     

Coating weight

Coating

Minimum

Maximum

Pure zinc (Z)

100 (7 µm/side)

600 (42 µm/side)

Zinc-iron (ZF)

100 (7 µm/side)

140 (10 µm/side)

MagiZinc (ZM)

70 (5 µm/side)

200 (14 µm/side)

Coating weight measured in g/m2 double-sided (µm, per side).

Surface condition

Surface condition complies with standard: EN 10346:2015. Galvanised steels are available in surface conditions with minimised spangle MB or MC. Galvannealed steels and MagiZinc Auto are available in surface conditions B or C.

Surface condition B: improved surface, suitable for unexposed parts

With this surface condition, small imperfections such as stretch levelling breaks, skin pass marks, slight scratches, indentations, surface structure, zinc run-off marks and light passivation stains are permissible.

Surface condition C: best quality surface, suitable for exposed parts

Surface condition C is obtained by skin passing. The controlled surface for the exposed side enables application of a uniform paint finish. The reverse surface has, at least, the characteristics of surface quality B.

Surface finish

Galvanised (GI) grades with surface condition MC are available with different levels of surface finish. For exposed body panels with stringent paint appearance requirements we offer ‘regular’ surface finish. For panels with the highest paint appearance requirements we recommend the premium surface finish Serica®.

Surface roughness

Metallic coated steel for automotive applications can be supplied in various grades of roughness to comply with individual customer norms. If no roughness is specified, roughness will be as shown in the table below

Roughness Ra (µm)
cut off 0.8mm cut off 2.5mm
0.6 - 1.9 0.7 - 2.2

​​​Surface treatments

The surface treatments available are oiling and T-treatment.

Oiling (O)

The material surface can be oiled with preservative oil. Other types of oil - for increasing strength or reducing weight – are available to help achieve your optimum performance parameters. Please contact us for details.

Tata Steel offers the following range of oiling levels:

Coating type Oiling level
Pure zinc (GI) 0.25 - 1.7 g/m2
Zinc-iron(GA) 0.5 - 1.5 g/m2
MagiZinc Auto(ZM) 0.25 - 1.0 g/m2

Other oiling levels are available on request.
 

T-treatment

Please contact us for further information.

Prime Lubrication Treatment (PLT)

Prime Lubrication Treatment facilitates the manufacturing of stamped components by minimising known issues in stamping and joining.

For further information please visit our dedicate Prime Lubrication Treatment (PLT) page.

 

 

EN-Automotive-Product-Metallic coated-Forming-DX52D-Properties

Properties

Properties


Mechanical properties

Metallic coated steel for forming has the following mechanical properties. These are measured transverse to the rolling direction.
Property range is indicated according to EN 10346, but properties meet equivalent VDA 239-100 specifications also.

  Grade DX52-GI/GA/ZM
Yield strength Re N/mm² 140 - 300 1
Tensile strength Rm N/mm² 270 - 420
Elongation % 26
Min. r-value   -
Min. n-value   -
If the yield point is not pronounced, the values apply to the 0.2% - proof strength Rp0.2 ; if the yield strength is pronounced, the values apply to the lower yield point ReL.
Decreased minimum elongation values apply for product thickness t ≤ 0.50 mm (minus 4 units) and for 0.50 mm ≤ t ≤ 0.70 mm (minus 2 units).
Elongation after fracture A uses test piece length L0 = 80 mm.
1. This value applies to skin-passed products only (surface qualities B and C).
 

Chemical composition

Tata Steel complies with the following cast analysis:

  Grade DX52
C Max. 0.12
Mn Max. 0.60
P Max. 0.101
S Max. 0.045
Al Min. -
N Max. -
Ti Max. 0.30
All values are in weight%.

EN-Automotive-Product-Metallic coated-Forming-DX52D-Dimensions

Dimensions

Dimensional capability

Galvanised (GI) products

Dimensions in mm.

Thickness Max. width
From - up to DX52
0.40 - 0.55 1520
0.55 - 0.60 1590
0.60 - 0.65 1770
0.65 - 0.70 1870
0.70 - 0.75 1890
0.75 - 0.80 1990
0.80 - 1.70 2020
1.70 - 2.00 1970
2.00 - 2.50 1580
2.50 - 3.50 1540
3.50 - 3.60 1500
3.60 - 3.70 1450
3.70 - 3.85 1400
3.85 - 4.00 1350
The minimum width is 900 mm.
Widths smaller than 900 mm are available on request. Please contact us.
Surface conditions MB, MC are available, as well as Serica® premium surface finish.
Serica® availability can be found in our dedicated Serica page.
Please contact us on the availability of:
- specific coating weights
- surface condition MC with a thickness greater than 1.2 mm.
 

Galvannealed (GA) products

Dimensions in mm.

Thickness Max. width
From - up to DX52
0.50 - 0.60 1420
0.60 - 0.65 1700
0.65 - 1.45 1850
1.45 - 1.50 1850
1.50 - 1.60 1830
1.60 - 1.70 1710
1.70 - 1.75 1660
1.75 - 1.80 1620
1.80 - 1.90 1530
1.90 - 2.00 1440
The minimum width is 900 mm.
 

MagiZinc® (ZM) products

Dimensions in mm.

Thickness Max. width
From - up to DX52
0.40 - 0.45 1520
0.45 - 0.60 1520
0.60 - 1.20 1550
1.20 - 2.00 1550
The minimum width is 900 mm.
 

Tolerances

Tolerances comply with standard EN 10143 2006.
Tighter tolerances are available, please contact us for details.

EN-EngineeringAutomotive-Product-Metallic Coated-All Grades Shape and Dimensional Tolerances

Shape and dimensional tolerances

Tolerances on thickness

The tolerances comply with standard EN 10143: 2006.
Tighter tolerances are available on request.
Thickness tolerance availability is shown below:

Thickness tolerance

Availability

Full thickness tolerance

Available

Special thickness tolerance

Available

50% of full thickness tolerance

Refer before ordering

 

The following tolerances apply to the grades with a minimum value for the yield strength lower than 260N/mm².

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

> 0.40

≤ 0.60

± 0.04

± 0.05

± 0.06

± 0.035

± 0.040

± 0.045

> 0.60

≤ 0.80

± 0.05

± 0.06

± 0.07

± 0.040

± 0.045

± 0.050

> 0.80

≤ 1.00

± 0.06

± 0.07

± 0.08

± 0.045

± 0.050

± 0.060

> 1.00

≤ 1.20

± 0.07

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 1.20

≤ 1.60

± 0.10

± 0.11

± 0.12

± 0.060

± 0.070

± 0.080

> 1.60

≤ 2.00

± 0.12

± 0.13

± 0.14

± 0.070

± 0.080

± 0.090

> 2.00

≤ 2.50

± 0.14

± 0.15

± 0.16

± 0.090

± 0.100

± 0.110

> 2.50

≤ 3.00

± 0.17

± 0.17

± 0.18

± 0.110

± 0.120

± 0.130

> 3.00

≤ 5.00

± 0.20

± 0.20

± 0.21

± 0.15

± 0.16

± 0.17

> 5.00

≤ 6.50

± 0.22

± 0.22

± 0.23

± 0.17

± 0.18

± 0.19

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm.

 

The following tolerances apply to the steel grades with a minimum value for the yield strength 260N/mm² ≤ Rp0.2 < 360N/mm² and for grades DX51D and S550GD.

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.05

± 0.06

-

± 0.035

± 0.040

-

> 0.40

≤ 0.60

± 0.05

± 0.06

± 0.07

± 0.040

± 0.045

± 0.050

> 0.60

≤ 0.80

± 0.06

± 0.07

± 0.08

± 0.045

± 0.050

± 0.060

> 0.80

≤ 1.00

± 0.07

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 1.00

≤ 1.20

± 0.08

± 0.09

± 0.11

± 0.060

± 0.070

± 0.080

> 1.20

≤ 1.60

± 0.11

± 0.13

± 0.14

± 0.070

± 0.080

± 0.090

> 1.60

≤ 2.00

± 0.14

± 0.15

± 0.16

± 0.080

± 0.090

± 0.110

> 2.00

≤ 2.50

± 0.16

± 0.17

± 0.18

± 0.110

± 0.120

± 0.130

> 2.50

≤ 3.00

± 0.19

± 0.20

± 0.20

± 0.130

± 0.140

± 0.150

> 3.00

≤ 5.00

± 0.22

± 0.24

± 0.25

± 0.17

± 0.18

± 0.19

> 5.00

≤ 6.50

± 0.24

± 0.25

± 0.26

± 0.19

± 0.20

± 0.21

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm

 

The following tolerances apply to the steel grades with a minimum value for the yield strength 360N/mm² ≤ Rp0.2 ≤ 420N/mm².

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.05

± 0.06

-

± 0.040

± 0.045

-

> 0.40

≤ 0.60

± 0.06

± 0.07

± 0.08

± 0.045

± 0.050

± 0.060

> 0.60

≤ 0.80

± 0.07

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 0.80

≤ 1.00

± 0.08

± 0.09

± 0.11

± 0.060

± 0.070

± 0.080

> 1.00

≤ 1.20

± 0.10

± 0.11

± 0.12

± 0.070

± 0.080

± 0.090

> 1.20

≤ 1.60

± 0.13

± 0.14

± 0.16

± 0.080

± 0.090

± 0.110

> 1.60

≤ 2.00

± 0.16

± 0.17

± 0.19

± 0.090

± 0.110

± 0.120

> 2.00

≤ 2.50

± 0.18

± 0.20

± 0.21

± 0.120

± 0.130

± 0.140

> 2.50

≤ 3.00

± 0.22

± 0.22

± 0.23

± 0.140

± 0.150

± 0.160

> 3.00

≤ 5.00

± 0.22

± 0.24

± 0.25

± 0.17

± 0.18

± 0.19

> 5.00

≤ 6.50

± 0.24

± 0.25

± 0.26

± 0.19

± 0.20

± 0.21

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm.

 

The following tolerances apply to the steel grades with a minimum value for the yield strength 420N/mm² < Rp0.2 ≤ 900N/mm².

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.06

± 0.07

-

± 0.045

± 0.050

-

> 0.40

≤ 0.60

± 0.06

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 0.60

≤ 0.80

± 0.07

± 0.09

± 0.11

± 0.060

± 0.070

± 0.080

> 0.80

≤ 1.00

± 0.09

± 0.11

± 0.12

± 0.070

± 0.080

± 0.090

> 1.00

≤ 1.20

± 0.11

± 0.13

± 0.14

± 0.080

± 0.090

± 0.110

> 1.20

≤ 1.60

± 0.15

± 0.16

± 0.18

± 0.090

± 0.110

± 0.120

> 1.60

≤ 2.00

± 0.18

± 0.19

± 0.21

± 0.110

± 0.120

± 0.140

> 2.00

≤ 2.50

± 0.21

± 0.22

± 0.24

± 0.140

± 0.150

± 0.170

> 2.50

≤ 3.00

± 0.24

± 0.25

± 0.26

± 0.170

± 0.180

± 0.190

> 3.00

≤ 5.00

± 0.26

± 0.27

± 0.28

± 0.23

± 0.24

± 0.26

> 5.00

≤ 6.50

± 0.28

± 0.29

± 0.30

± 0.25

± 0.26

± 0.28

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm.

 

Tolerances on width

The tolerances on width comply with standard EN 10143: 2006
MagiZinc is not included in the standard, but fulfils EN 10143: 2006 requirements.
Tighter tolerances are available on request.

Tolerances in mm.

Nominal width w Normal tolerances Special tolerances (S)
600 ≤ w ≤ 1200 + 5
0
+ 2
0
1200 < w ≤ 1500 + 6
0
+ 2
0
1500 < w ≤ 1800 + 7
0
+ 3
0
w > 1800 + 8
0
+ 3
0

 

Dimensions and coil weights

Description Availability
Coil diameter inner 610mm
(508 mm available on request)
Coil diameter outer 10/7 x width max
1000mm min.
2500mm max.
Coil weight 30t max.
33t max available after consultation
Coil weight limited by maximum outer diameter
Maximum weight allowed by road/rail transport
Some products may have different coil weight ranges available
Usually a minimum coil weight up to 85% of the maximum coil weight can be requested
KIM: width ≤ 1200 mm 11.7 - 22.7 kg/mm width
KIM: 1200mm < width ≤ 1700 mm 11.6 - 21.7 kg/mm width
KIM: width > 1700 mm 11.0 kg/mm width and 11.6 - 21.7 kg/mm width
Minimum tonnage per order Refer to price list for order quantity details
Minimum order quantities may apply

 

EN-EngineeringAutomotive-Product-Metallic coated-All grades Further processing

Further processing

Further processing

We have a broad network of Tata Steel service centres across Europe, offering decoiling and slitting services from stock and against short lead times

Light gauge processing

Processing type Slitting Decoiling Blanking
Thickness range (mm) 0.2 - 7.0 0.3 - 6.0 0.3 - 6.0
Width range (mm) 10 - 2050 50 - 2600 200 - 2600
Length range - up to 6m up to 6m
Locations UK
Ireland
Netherlands
Germany
France
Spain
Sweden
Norway
Finland
UK
Ireland
Netherlands
Germany
France
Spain
Sweden
Norway
Finland
UK
Netherlands

For further information please visit our Service Centre webpages.

 

 

EN-Automotive-Product-Metallic coated-Forming-DX53D-GI/GA/ZM

DX53D-GI/GA/ZM
Specification details for DX53-GI/GA/ZM

EN-Automotive-Product-Metallic coated-Forming-All Grades Overview

Overview

Relationship with standards

 

Grade

VDA standard

VDA 239-100-16

European standard

EN 10346: 2015

DX51-GI/GA/ZM -

DX51D+Z/+ZF/+ZM

DX52-GI/GA/ZM CR1-GI/GA/ZM

DX52D+Z/+ZF/+ZM

DX53-GI/GA/ZM CR2-GI/GA/ZM

DX53D+Z/+ZF/+ZM

DX54-GI/GA/ZM CR3-GI/GA/ZM

DX54D+Z/+ZF/+ZM

DX56-GI/GA/ZM CR4-GI/GA/ZM

DX56D+Z/+ZF/+ZM

DX57-GI/GA/ZM CR5-GI/GA/ZM

DX57D+Z/+ZF/+ZM

DX58-GI/GA/ZM 1 -

-

1. Not in standard. Tata Steel’s own specification.

EN-Automotive-Product-Metallic coated-All Grades Coatings Surface aspects

Coatings and Surface aspects

Coatings

Three types of metallic coating are available:

  • Pure zinc. Galvanised steel (GI) is coated with an almost pure zinc coating (>99% zinc)
  • Zinc-iron alloy. Galvannealed steel (GA) is coated with a zinc coating containing approximately 8-12% iron
  • MagiZinc Auto. MagiZinc Auto steel (ZM) is coated with a zinc coating containing additional magnesium and aluminium.
     

Coating weight

Coating

Minimum

Maximum

Pure zinc (Z)

100 (7 µm/side)

600 (42 µm/side)

Zinc-iron (ZF)

100 (7 µm/side)

140 (10 µm/side)

MagiZinc (ZM)

70 (5 µm/side)

200 (14 µm/side)

Coating weight measured in g/m2 double-sided (µm, per side).

Surface condition

Surface condition complies with standard: EN 10346:2015. Galvanised steels are available in surface conditions with minimised spangle MB or MC. Galvannealed steels and MagiZinc Auto are available in surface conditions B or C.

Surface condition B: improved surface, suitable for unexposed parts

With this surface condition, small imperfections such as stretch levelling breaks, skin pass marks, slight scratches, indentations, surface structure, zinc run-off marks and light passivation stains are permissible.

Surface condition C: best quality surface, suitable for exposed parts

Surface condition C is obtained by skin passing. The controlled surface for the exposed side enables application of a uniform paint finish. The reverse surface has, at least, the characteristics of surface quality B.

Surface finish

Galvanised (GI) grades with surface condition MC are available with different levels of surface finish. For exposed body panels with stringent paint appearance requirements we offer ‘regular’ surface finish. For panels with the highest paint appearance requirements we recommend the premium surface finish Serica®.

Surface roughness

Metallic coated steel for automotive applications can be supplied in various grades of roughness to comply with individual customer norms. If no roughness is specified, roughness will be as shown in the table below

Roughness Ra (µm)
cut off 0.8mm cut off 2.5mm
0.6 - 1.9 0.7 - 2.2

​​​Surface treatments

The surface treatments available are oiling and T-treatment.

Oiling (O)

The material surface can be oiled with preservative oil. Other types of oil - for increasing strength or reducing weight – are available to help achieve your optimum performance parameters. Please contact us for details.

Tata Steel offers the following range of oiling levels:

Coating type Oiling level
Pure zinc (GI) 0.25 - 1.7 g/m2
Zinc-iron(GA) 0.5 - 1.5 g/m2
MagiZinc Auto(ZM) 0.25 - 1.0 g/m2

Other oiling levels are available on request.
 

T-treatment

Please contact us for further information.

Prime Lubrication Treatment (PLT)

Prime Lubrication Treatment facilitates the manufacturing of stamped components by minimising known issues in stamping and joining.

For further information please visit our dedicate Prime Lubrication Treatment (PLT) page.

 

 

EN-Automotive-Product-Metallic coated-Forming-DX53D-Properties

Properties

Properties


Mechanical properties

Metallic coated steel for forming has the following mechanical properties. These are measured transverse to the rolling direction.
Property range is indicated according to EN 10346, but properties meet equivalent VDA 239-100 specifications also.

  Grade DX53-GI/GA/ZM
Yield strength Re N/mm² 140 - 260
Tensile strength Rm N/mm² 270 - 380
Elongation % 30
Min. r-value   -
Min. n-value   -
If the yield point is not pronounced, the values apply to the 0.2% - proof strength Rp0.2 ; if the yield strength is pronounced, the values apply to the lower yield point ReL.
Decreased minimum elongation values apply for product thickness t ≤ 0.50mm (minus 4 units) and for 0.50mm ≤ t ≤ 0.70mm (minus 2 units).
Elongation after fracture A uses test piece length L0 = 80 mm.
 

Chemical composition

Tata Steel complies with the following cast analysis:

  Grade DX53
C Max. 0.12
Mn Max. 0.60
P Max. 0.10
S Max. 0.045
Al Min. -
N Max. -
Ti Max. 0.30
All values are in weight%.

EN-Automotive-Product-Metallic coated-Forming-DX53D-Dimensions

Dimensions

Dimensional capability

Galvanised (GI) and MagiZinc® (ZM) products

Dimensions in mm.

Thickness Max. width
From - up to DX53
0.45 - 0.50 1520
0.50 - 0.55 1540
0.55 - 0.60 1640
0.60 - 0.65 1740
0.65 - 0.70 1830
0.70 - 0.75 1910
0.75 - 0.80 1950
0.80 - 1.20 2000
1.20 - 1.30 1940
1.30 - 1.40 1890
1.40 - 1.50 1830
1.50 - 1.60 1740
1.60 - 1.65 1670
1.65 - 1.70 1640
1.70 - 1.75 1600
1.75 - 1.80 1570
1.80 - 1.90 1530
1.90 - 2.00 1450
The minimum width is 900 mm.
Widths smaller than 900 mm are available on request. Please contact us.
Surface conditions MB, MC are available, as well as Serica® premium surface finish.
Serica® availability can be found in our dedicated Serica page.
Please contact us on the availability of:
- specific coating weights
- surface condition MC with a thickness greater than 1.2 mm.
 

Galvannealed (GA) products

Dimensions in mm.

Thickness Max. width
From - up to DX53
0.50 - 0.60 1420
0.60 - 0.65 1700
0.65 - 1.45 1850
1.45 - 1.50 1850
1.50 - 1.60 1830
1.60 - 1.70 1710
1.70 - 1.75 1660
1.75 - 1.80 1620
1.80 - 1.90 1530
1.90 - 2.00 1440
The minimum width is 900 mm.
 

Tolerances

Tolerances comply with standard EN 10143 2006.
Tighter tolerances are available, please contact us for details.

EN-EngineeringAutomotive-Product-Metallic Coated-All Grades Shape and Dimensional Tolerances

Shape and dimensional tolerances

Tolerances on thickness

The tolerances comply with standard EN 10143: 2006.
Tighter tolerances are available on request.
Thickness tolerance availability is shown below:

Thickness tolerance

Availability

Full thickness tolerance

Available

Special thickness tolerance

Available

50% of full thickness tolerance

Refer before ordering

 

The following tolerances apply to the grades with a minimum value for the yield strength lower than 260N/mm².

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

> 0.40

≤ 0.60

± 0.04

± 0.05

± 0.06

± 0.035

± 0.040

± 0.045

> 0.60

≤ 0.80

± 0.05

± 0.06

± 0.07

± 0.040

± 0.045

± 0.050

> 0.80

≤ 1.00

± 0.06

± 0.07

± 0.08

± 0.045

± 0.050

± 0.060

> 1.00

≤ 1.20

± 0.07

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 1.20

≤ 1.60

± 0.10

± 0.11

± 0.12

± 0.060

± 0.070

± 0.080

> 1.60

≤ 2.00

± 0.12

± 0.13

± 0.14

± 0.070

± 0.080

± 0.090

> 2.00

≤ 2.50

± 0.14

± 0.15

± 0.16

± 0.090

± 0.100

± 0.110

> 2.50

≤ 3.00

± 0.17

± 0.17

± 0.18

± 0.110

± 0.120

± 0.130

> 3.00

≤ 5.00

± 0.20

± 0.20

± 0.21

± 0.15

± 0.16

± 0.17

> 5.00

≤ 6.50

± 0.22

± 0.22

± 0.23

± 0.17

± 0.18

± 0.19

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm.

 

The following tolerances apply to the steel grades with a minimum value for the yield strength 260N/mm² ≤ Rp0.2 < 360N/mm² and for grades DX51D and S550GD.

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.05

± 0.06

-

± 0.035

± 0.040

-

> 0.40

≤ 0.60

± 0.05

± 0.06

± 0.07

± 0.040

± 0.045

± 0.050

> 0.60

≤ 0.80

± 0.06

± 0.07

± 0.08

± 0.045

± 0.050

± 0.060

> 0.80

≤ 1.00

± 0.07

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 1.00

≤ 1.20

± 0.08

± 0.09

± 0.11

± 0.060

± 0.070

± 0.080

> 1.20

≤ 1.60

± 0.11

± 0.13

± 0.14

± 0.070

± 0.080

± 0.090

> 1.60

≤ 2.00

± 0.14

± 0.15

± 0.16

± 0.080

± 0.090

± 0.110

> 2.00

≤ 2.50

± 0.16

± 0.17

± 0.18

± 0.110

± 0.120

± 0.130

> 2.50

≤ 3.00

± 0.19

± 0.20

± 0.20

± 0.130

± 0.140

± 0.150

> 3.00

≤ 5.00

± 0.22

± 0.24

± 0.25

± 0.17

± 0.18

± 0.19

> 5.00

≤ 6.50

± 0.24

± 0.25

± 0.26

± 0.19

± 0.20

± 0.21

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm

 

The following tolerances apply to the steel grades with a minimum value for the yield strength 360N/mm² ≤ Rp0.2 ≤ 420N/mm².

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.05

± 0.06

-

± 0.040

± 0.045

-

> 0.40

≤ 0.60

± 0.06

± 0.07

± 0.08

± 0.045

± 0.050

± 0.060

> 0.60

≤ 0.80

± 0.07

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 0.80

≤ 1.00

± 0.08

± 0.09

± 0.11

± 0.060

± 0.070

± 0.080

> 1.00

≤ 1.20

± 0.10

± 0.11

± 0.12

± 0.070

± 0.080

± 0.090

> 1.20

≤ 1.60

± 0.13

± 0.14

± 0.16

± 0.080

± 0.090

± 0.110

> 1.60

≤ 2.00

± 0.16

± 0.17

± 0.19

± 0.090

± 0.110

± 0.120

> 2.00

≤ 2.50

± 0.18

± 0.20

± 0.21

± 0.120

± 0.130

± 0.140

> 2.50

≤ 3.00

± 0.22

± 0.22

± 0.23

± 0.140

± 0.150

± 0.160

> 3.00

≤ 5.00

± 0.22

± 0.24

± 0.25

± 0.17

± 0.18

± 0.19

> 5.00

≤ 6.50

± 0.24

± 0.25

± 0.26

± 0.19

± 0.20

± 0.21

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm.

 

The following tolerances apply to the steel grades with a minimum value for the yield strength 420N/mm² < Rp0.2 ≤ 900N/mm².

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.06

± 0.07

-

± 0.045

± 0.050

-

> 0.40

≤ 0.60

± 0.06

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 0.60

≤ 0.80

± 0.07

± 0.09

± 0.11

± 0.060

± 0.070

± 0.080

> 0.80

≤ 1.00

± 0.09

± 0.11

± 0.12

± 0.070

± 0.080

± 0.090

> 1.00

≤ 1.20

± 0.11

± 0.13

± 0.14

± 0.080

± 0.090

± 0.110

> 1.20

≤ 1.60

± 0.15

± 0.16

± 0.18

± 0.090

± 0.110

± 0.120

> 1.60

≤ 2.00

± 0.18

± 0.19

± 0.21

± 0.110

± 0.120

± 0.140

> 2.00

≤ 2.50

± 0.21

± 0.22

± 0.24

± 0.140

± 0.150

± 0.170

> 2.50

≤ 3.00

± 0.24

± 0.25

± 0.26

± 0.170

± 0.180

± 0.190

> 3.00

≤ 5.00

± 0.26

± 0.27

± 0.28

± 0.23

± 0.24

± 0.26

> 5.00

≤ 6.50

± 0.28

± 0.29

± 0.30

± 0.25

± 0.26

± 0.28

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm.

 

Tolerances on width

The tolerances on width comply with standard EN 10143: 2006
MagiZinc is not included in the standard, but fulfils EN 10143: 2006 requirements.
Tighter tolerances are available on request.

Tolerances in mm.

Nominal width w Normal tolerances Special tolerances (S)
600 ≤ w ≤ 1200 + 5
0
+ 2
0
1200 < w ≤ 1500 + 6
0
+ 2
0
1500 < w ≤ 1800 + 7
0
+ 3
0
w > 1800 + 8
0
+ 3
0

 

Dimensions and coil weights

Description Availability
Coil diameter inner 610mm
(508 mm available on request)
Coil diameter outer 10/7 x width max
1000mm min.
2500mm max.
Coil weight 30t max.
33t max available after consultation
Coil weight limited by maximum outer diameter
Maximum weight allowed by road/rail transport
Some products may have different coil weight ranges available
Usually a minimum coil weight up to 85% of the maximum coil weight can be requested
KIM: width ≤ 1200 mm 11.7 - 22.7 kg/mm width
KIM: 1200mm < width ≤ 1700 mm 11.6 - 21.7 kg/mm width
KIM: width > 1700 mm 11.0 kg/mm width and 11.6 - 21.7 kg/mm width
Minimum tonnage per order Refer to price list for order quantity details
Minimum order quantities may apply

 

EN-EngineeringAutomotive-Product-Metallic coated-All grades Further processing

Further processing

Further processing

We have a broad network of Tata Steel service centres across Europe, offering decoiling and slitting services from stock and against short lead times

Light gauge processing

Processing type Slitting Decoiling Blanking
Thickness range (mm) 0.2 - 7.0 0.3 - 6.0 0.3 - 6.0
Width range (mm) 10 - 2050 50 - 2600 200 - 2600
Length range - up to 6m up to 6m
Locations UK
Ireland
Netherlands
Germany
France
Spain
Sweden
Norway
Finland
UK
Ireland
Netherlands
Germany
France
Spain
Sweden
Norway
Finland
UK
Netherlands

For further information please visit our Service Centre webpages.

 

 

EN-Automotive-Product-Metallic coated-Forming-DX54D-GI/GA/ZM

DX54D-GI/GA/ZM
Specification details for DX54-GI/GA/ZM

EN-Automotive-Product-Metallic coated-Forming-All Grades Overview

Overview

Relationship with standards

 

Grade

VDA standard

VDA 239-100-16

European standard

EN 10346: 2015

DX51-GI/GA/ZM -

DX51D+Z/+ZF/+ZM

DX52-GI/GA/ZM CR1-GI/GA/ZM

DX52D+Z/+ZF/+ZM

DX53-GI/GA/ZM CR2-GI/GA/ZM

DX53D+Z/+ZF/+ZM

DX54-GI/GA/ZM CR3-GI/GA/ZM

DX54D+Z/+ZF/+ZM

DX56-GI/GA/ZM CR4-GI/GA/ZM

DX56D+Z/+ZF/+ZM

DX57-GI/GA/ZM CR5-GI/GA/ZM

DX57D+Z/+ZF/+ZM

DX58-GI/GA/ZM 1 -

-

1. Not in standard. Tata Steel’s own specification.

EN-Automotive-Product-Metallic coated-All Grades Coatings Surface aspects

Coatings and Surface aspects

Coatings

Three types of metallic coating are available:

  • Pure zinc. Galvanised steel (GI) is coated with an almost pure zinc coating (>99% zinc)
  • Zinc-iron alloy. Galvannealed steel (GA) is coated with a zinc coating containing approximately 8-12% iron
  • MagiZinc Auto. MagiZinc Auto steel (ZM) is coated with a zinc coating containing additional magnesium and aluminium.
     

Coating weight

Coating

Minimum

Maximum

Pure zinc (Z)

100 (7 µm/side)

600 (42 µm/side)

Zinc-iron (ZF)

100 (7 µm/side)

140 (10 µm/side)

MagiZinc (ZM)

70 (5 µm/side)

200 (14 µm/side)

Coating weight measured in g/m2 double-sided (µm, per side).

Surface condition

Surface condition complies with standard: EN 10346:2015. Galvanised steels are available in surface conditions with minimised spangle MB or MC. Galvannealed steels and MagiZinc Auto are available in surface conditions B or C.

Surface condition B: improved surface, suitable for unexposed parts

With this surface condition, small imperfections such as stretch levelling breaks, skin pass marks, slight scratches, indentations, surface structure, zinc run-off marks and light passivation stains are permissible.

Surface condition C: best quality surface, suitable for exposed parts

Surface condition C is obtained by skin passing. The controlled surface for the exposed side enables application of a uniform paint finish. The reverse surface has, at least, the characteristics of surface quality B.

Surface finish

Galvanised (GI) grades with surface condition MC are available with different levels of surface finish. For exposed body panels with stringent paint appearance requirements we offer ‘regular’ surface finish. For panels with the highest paint appearance requirements we recommend the premium surface finish Serica®.

Surface roughness

Metallic coated steel for automotive applications can be supplied in various grades of roughness to comply with individual customer norms. If no roughness is specified, roughness will be as shown in the table below

Roughness Ra (µm)
cut off 0.8mm cut off 2.5mm
0.6 - 1.9 0.7 - 2.2

​​​Surface treatments

The surface treatments available are oiling and T-treatment.

Oiling (O)

The material surface can be oiled with preservative oil. Other types of oil - for increasing strength or reducing weight – are available to help achieve your optimum performance parameters. Please contact us for details.

Tata Steel offers the following range of oiling levels:

Coating type Oiling level
Pure zinc (GI) 0.25 - 1.7 g/m2
Zinc-iron(GA) 0.5 - 1.5 g/m2
MagiZinc Auto(ZM) 0.25 - 1.0 g/m2

Other oiling levels are available on request.
 

T-treatment

Please contact us for further information.

Prime Lubrication Treatment (PLT)

Prime Lubrication Treatment facilitates the manufacturing of stamped components by minimising known issues in stamping and joining.

For further information please visit our dedicate Prime Lubrication Treatment (PLT) page.

 

 

EN-Automotive-Product-Metallic coated-Forming-DX54D-Properties

Properties

Properties


Mechanical properties

Metallic coated steel for forming has the following mechanical properties. These are measured transverse to the rolling direction.
Property range is indicated according to EN 10346, but properties meet equivalent VDA 239-100 specifications also.

  Grade DX54-GI DX54-GA/ZM
Yield strength Re N/mm² 120 - 220 120 - 220
Tensile strength Rm N/mm² 260 - 350 260 - 350
Elongation % 36 34
Min. r-value   1.6 1.4
Min. n-value   0.18 0.18
If the yield point is not pronounced, the values apply to the 0.2% - proof strength Rp0.2 ; if the yield strength is pronounced, the values apply to the lower yield point ReL.
Decreased minimum elongation values apply for product thickness t ≤ 0.50 mm (minus 4 units) and for 0.50 mm ≤ t ≤ 0.70 mm (minus 2 units).
Elongation after fracture A uses test piece length L0 = 80 mm.
For t > 1.5 mm, the minimum r90 - value reduced by 0.2 applies.
 

Chemical composition

Tata Steel complies with the following cast analysis:

  Grade DX54
C Max. 0.12
Mn Max. 0.60
P Max. 0.10
S Max. 0.045
Al Min. -
N Max. -
Ti Max. 0.30
All values are in weight%.

EN-Automotive-Product-Metallic coated-Forming-DX54D-Dimensions

Dimensions

Dimensional capability

Galvanised (GI) and MagiZinc® (ZM) products

Dimensions in mm.

Thickness Max. width
From - up to DX54
0.45 - 0.50 1350
0.50 - 0.55 1500
0.55 - 0.60 1620
0.60 - 0.65 1730
0.65 - 0.70 1870
0.70 - 1.20 1970
1.20 - 1.30 1940
1.30 - 1.60 1840
1.60 - 1.70 1800
1.70 - 1.80 1750
1.80 - 1.90 1630
1.90 - 2.00 1530
The minimum width is 900 mm.
Widths smaller than 900 mm are available on request. Please contact us.
Surface conditions MB, MC are available, as well as Serica® premium surface finish.
Serica® availability can be found in our dedicated Serica page.
Please contact us on the availability of:
- specific coating weights
- surface condition MC with a thickness greater than 1.2 mm.
 

Galvannealed (GA) products

Dimensions in mm.

Thickness Max. width
From - up to DX54
0.50 - 0.60 1420
0.60 - 0.65 1700
0.65 - 1.45 1850
1.45 - 1.50 1850
1.50 - 1.60 1830
1.60 - 1.70 1710
1.70 - 1.75 1660
1.75 - 1.80 1620
1.80 - 1.90 1530
1.90 - 2.00 1440
The minimum width is 900 mm.
 

Tolerances

Tolerances comply with standard EN 10143 2006.
Tighter tolerances are available, please contact us for details.

EN-EngineeringAutomotive-Product-Metallic Coated-All Grades Shape and Dimensional Tolerances

Shape and dimensional tolerances

Tolerances on thickness

The tolerances comply with standard EN 10143: 2006.
Tighter tolerances are available on request.
Thickness tolerance availability is shown below:

Thickness tolerance

Availability

Full thickness tolerance

Available

Special thickness tolerance

Available

50% of full thickness tolerance

Refer before ordering

 

The following tolerances apply to the grades with a minimum value for the yield strength lower than 260N/mm².

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

> 0.40

≤ 0.60

± 0.04

± 0.05

± 0.06

± 0.035

± 0.040

± 0.045

> 0.60

≤ 0.80

± 0.05

± 0.06

± 0.07

± 0.040

± 0.045

± 0.050

> 0.80

≤ 1.00

± 0.06

± 0.07

± 0.08

± 0.045

± 0.050

± 0.060

> 1.00

≤ 1.20

± 0.07

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 1.20

≤ 1.60

± 0.10

± 0.11

± 0.12

± 0.060

± 0.070

± 0.080

> 1.60

≤ 2.00

± 0.12

± 0.13

± 0.14

± 0.070

± 0.080

± 0.090

> 2.00

≤ 2.50

± 0.14

± 0.15

± 0.16

± 0.090

± 0.100

± 0.110

> 2.50

≤ 3.00

± 0.17

± 0.17

± 0.18

± 0.110

± 0.120

± 0.130

> 3.00

≤ 5.00

± 0.20

± 0.20

± 0.21

± 0.15

± 0.16

± 0.17

> 5.00

≤ 6.50

± 0.22

± 0.22

± 0.23

± 0.17

± 0.18

± 0.19

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm.

 

The following tolerances apply to the steel grades with a minimum value for the yield strength 260N/mm² ≤ Rp0.2 < 360N/mm² and for grades DX51D and S550GD.

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.05

± 0.06

-

± 0.035

± 0.040

-

> 0.40

≤ 0.60

± 0.05

± 0.06

± 0.07

± 0.040

± 0.045

± 0.050

> 0.60

≤ 0.80

± 0.06

± 0.07

± 0.08

± 0.045

± 0.050

± 0.060

> 0.80

≤ 1.00

± 0.07

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 1.00

≤ 1.20

± 0.08

± 0.09

± 0.11

± 0.060

± 0.070

± 0.080

> 1.20

≤ 1.60

± 0.11

± 0.13

± 0.14

± 0.070

± 0.080

± 0.090

> 1.60

≤ 2.00

± 0.14

± 0.15

± 0.16

± 0.080

± 0.090

± 0.110

> 2.00

≤ 2.50

± 0.16

± 0.17

± 0.18

± 0.110

± 0.120

± 0.130

> 2.50

≤ 3.00

± 0.19

± 0.20

± 0.20

± 0.130

± 0.140

± 0.150

> 3.00

≤ 5.00

± 0.22

± 0.24

± 0.25

± 0.17

± 0.18

± 0.19

> 5.00

≤ 6.50

± 0.24

± 0.25

± 0.26

± 0.19

± 0.20

± 0.21

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm

 

The following tolerances apply to the steel grades with a minimum value for the yield strength 360N/mm² ≤ Rp0.2 ≤ 420N/mm².

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.05

± 0.06

-

± 0.040

± 0.045

-

> 0.40

≤ 0.60

± 0.06

± 0.07

± 0.08

± 0.045

± 0.050

± 0.060

> 0.60

≤ 0.80

± 0.07

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 0.80

≤ 1.00

± 0.08

± 0.09

± 0.11

± 0.060

± 0.070

± 0.080

> 1.00

≤ 1.20

± 0.10

± 0.11

± 0.12

± 0.070

± 0.080

± 0.090

> 1.20

≤ 1.60

± 0.13

± 0.14

± 0.16

± 0.080

± 0.090

± 0.110

> 1.60

≤ 2.00

± 0.16

± 0.17

± 0.19

± 0.090

± 0.110

± 0.120

> 2.00

≤ 2.50

± 0.18

± 0.20

± 0.21

± 0.120

± 0.130

± 0.140

> 2.50

≤ 3.00

± 0.22

± 0.22

± 0.23

± 0.140

± 0.150

± 0.160

> 3.00

≤ 5.00

± 0.22

± 0.24

± 0.25

± 0.17

± 0.18

± 0.19

> 5.00

≤ 6.50

± 0.24

± 0.25

± 0.26

± 0.19

± 0.20

± 0.21

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm.

 

The following tolerances apply to the steel grades with a minimum value for the yield strength 420N/mm² < Rp0.2 ≤ 900N/mm².

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.06

± 0.07

-

± 0.045

± 0.050

-

> 0.40

≤ 0.60

± 0.06

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 0.60

≤ 0.80

± 0.07

± 0.09

± 0.11

± 0.060

± 0.070

± 0.080

> 0.80

≤ 1.00

± 0.09

± 0.11

± 0.12

± 0.070

± 0.080

± 0.090

> 1.00

≤ 1.20

± 0.11

± 0.13

± 0.14

± 0.080

± 0.090

± 0.110

> 1.20

≤ 1.60

± 0.15

± 0.16

± 0.18

± 0.090

± 0.110

± 0.120

> 1.60

≤ 2.00

± 0.18

± 0.19

± 0.21

± 0.110

± 0.120

± 0.140

> 2.00

≤ 2.50

± 0.21

± 0.22

± 0.24

± 0.140

± 0.150

± 0.170

> 2.50

≤ 3.00

± 0.24

± 0.25

± 0.26

± 0.170

± 0.180

± 0.190

> 3.00

≤ 5.00

± 0.26

± 0.27

± 0.28

± 0.23

± 0.24

± 0.26

> 5.00

≤ 6.50

± 0.28

± 0.29

± 0.30

± 0.25

± 0.26

± 0.28

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm.

 

Tolerances on width

The tolerances on width comply with standard EN 10143: 2006
MagiZinc is not included in the standard, but fulfils EN 10143: 2006 requirements.
Tighter tolerances are available on request.

Tolerances in mm.

Nominal width w Normal tolerances Special tolerances (S)
600 ≤ w ≤ 1200 + 5
0
+ 2
0
1200 < w ≤ 1500 + 6
0
+ 2
0
1500 < w ≤ 1800 + 7
0
+ 3
0
w > 1800 + 8
0
+ 3
0

 

Dimensions and coil weights

Description Availability
Coil diameter inner 610mm
(508 mm available on request)
Coil diameter outer 10/7 x width max
1000mm min.
2500mm max.
Coil weight 30t max.
33t max available after consultation
Coil weight limited by maximum outer diameter
Maximum weight allowed by road/rail transport
Some products may have different coil weight ranges available
Usually a minimum coil weight up to 85% of the maximum coil weight can be requested
KIM: width ≤ 1200 mm 11.7 - 22.7 kg/mm width
KIM: 1200mm < width ≤ 1700 mm 11.6 - 21.7 kg/mm width
KIM: width > 1700 mm 11.0 kg/mm width and 11.6 - 21.7 kg/mm width
Minimum tonnage per order Refer to price list for order quantity details
Minimum order quantities may apply

 

EN-EngineeringAutomotive-Product-Metallic coated-All grades Further processing

Further processing

Further processing

We have a broad network of Tata Steel service centres across Europe, offering decoiling and slitting services from stock and against short lead times

Light gauge processing

Processing type Slitting Decoiling Blanking
Thickness range (mm) 0.2 - 7.0 0.3 - 6.0 0.3 - 6.0
Width range (mm) 10 - 2050 50 - 2600 200 - 2600
Length range - up to 6m up to 6m
Locations UK
Ireland
Netherlands
Germany
France
Spain
Sweden
Norway
Finland
UK
Ireland
Netherlands
Germany
France
Spain
Sweden
Norway
Finland
UK
Netherlands

For further information please visit our Service Centre webpages.

 

 

EN-Automotive-Product-Metallic coated-Forming-DX56D-GI/GA/ZM

DX56D-GI/GA/ZM
Specification details for DX56-GI/GA/ZM

EN-Automotive-Product-Metallic coated-Forming-All Grades Overview

Overview

Relationship with standards

 

Grade

VDA standard

VDA 239-100-16

European standard

EN 10346: 2015

DX51-GI/GA/ZM -

DX51D+Z/+ZF/+ZM

DX52-GI/GA/ZM CR1-GI/GA/ZM

DX52D+Z/+ZF/+ZM

DX53-GI/GA/ZM CR2-GI/GA/ZM

DX53D+Z/+ZF/+ZM

DX54-GI/GA/ZM CR3-GI/GA/ZM

DX54D+Z/+ZF/+ZM

DX56-GI/GA/ZM CR4-GI/GA/ZM

DX56D+Z/+ZF/+ZM

DX57-GI/GA/ZM CR5-GI/GA/ZM

DX57D+Z/+ZF/+ZM

DX58-GI/GA/ZM 1 -

-

1. Not in standard. Tata Steel’s own specification.

EN-Automotive-Product-Metallic coated-All Grades Coatings Surface aspects

Coatings and Surface aspects

Coatings

Three types of metallic coating are available:

  • Pure zinc. Galvanised steel (GI) is coated with an almost pure zinc coating (>99% zinc)
  • Zinc-iron alloy. Galvannealed steel (GA) is coated with a zinc coating containing approximately 8-12% iron
  • MagiZinc Auto. MagiZinc Auto steel (ZM) is coated with a zinc coating containing additional magnesium and aluminium.
     

Coating weight

Coating

Minimum

Maximum

Pure zinc (Z)

100 (7 µm/side)

600 (42 µm/side)

Zinc-iron (ZF)

100 (7 µm/side)

140 (10 µm/side)

MagiZinc (ZM)

70 (5 µm/side)

200 (14 µm/side)

Coating weight measured in g/m2 double-sided (µm, per side).

Surface condition

Surface condition complies with standard: EN 10346:2015. Galvanised steels are available in surface conditions with minimised spangle MB or MC. Galvannealed steels and MagiZinc Auto are available in surface conditions B or C.

Surface condition B: improved surface, suitable for unexposed parts

With this surface condition, small imperfections such as stretch levelling breaks, skin pass marks, slight scratches, indentations, surface structure, zinc run-off marks and light passivation stains are permissible.

Surface condition C: best quality surface, suitable for exposed parts

Surface condition C is obtained by skin passing. The controlled surface for the exposed side enables application of a uniform paint finish. The reverse surface has, at least, the characteristics of surface quality B.

Surface finish

Galvanised (GI) grades with surface condition MC are available with different levels of surface finish. For exposed body panels with stringent paint appearance requirements we offer ‘regular’ surface finish. For panels with the highest paint appearance requirements we recommend the premium surface finish Serica®.

Surface roughness

Metallic coated steel for automotive applications can be supplied in various grades of roughness to comply with individual customer norms. If no roughness is specified, roughness will be as shown in the table below

Roughness Ra (µm)
cut off 0.8mm cut off 2.5mm
0.6 - 1.9 0.7 - 2.2

​​​Surface treatments

The surface treatments available are oiling and T-treatment.

Oiling (O)

The material surface can be oiled with preservative oil. Other types of oil - for increasing strength or reducing weight – are available to help achieve your optimum performance parameters. Please contact us for details.

Tata Steel offers the following range of oiling levels:

Coating type Oiling level
Pure zinc (GI) 0.25 - 1.7 g/m2
Zinc-iron(GA) 0.5 - 1.5 g/m2
MagiZinc Auto(ZM) 0.25 - 1.0 g/m2

Other oiling levels are available on request.
 

T-treatment

Please contact us for further information.

Prime Lubrication Treatment (PLT)

Prime Lubrication Treatment facilitates the manufacturing of stamped components by minimising known issues in stamping and joining.

For further information please visit our dedicate Prime Lubrication Treatment (PLT) page.

 

 

EN-Automotive-Product-Metallic coated-Forming-DX56D-Properties

Properties

Properties


Mechanical properties

Metallic coated steel for forming has the following mechanical properties. These are measured transverse to the rolling direction.
Property range is indicated according to EN 10346, but properties meet equivalent VDA 239-100 specifications also.

  Grade DX56-GI DX56-GA/ZM
Yield strength Re N/mm² 120 - 180 120 - 180
Tensile strength Rm N/mm² 260 - 350 260 - 350
Elongation % 39 37
Min. r-value   1.9 1.7
Min. n-value   0.21 0.20
If the yield point is not pronounced, the values apply to the 0.2% - proof strength Rp0.2 ; if the yield strength is pronounced, the values apply to the lower yield point ReL.
Decreased minimum elongation values apply for product thickness t ≤ 0.50 mm (minus 4 units) and for 0.50 mm ≤ t ≤ 0.70 mm (minus 2 units).
Elongation after fraction A uses test piece length L0 = 80 mm.
For t > 1.5 mm, the minimum r90 - value reduced by 0.2 applies.
For t ≤ 0.7 mm, the minimum r90 - value reduced by 0.2 and minimum n90- value reduced by 0.01 apply.
 

Chemical composition

Tata Steel complies with the following cast analysis:

  Grade DX56
C Max. 0.12
Mn Max. 0.60
P Max. 0.10
S Max. 0.045
Al Min. -
N Max. -
Ti Max. 0.30
All values are in weight%.

EN-Automotive-Product-Metallic coated-Forming-DX56D-Dimensions

Dimensions

Dimensional capability

Galvanised (GI) products

Dimensions in mm.

Thickness Max. width
From - up to DX56
0.45 - 0.50 1350
0.50 - 0.55 1500
0.55 - 0.60 1620
0.60 - 0.65 1730
0.65 - 0.70 1870
0.70 - 1.20 1970
1.20 - 1.30 1940
1.30 - 1.60 1840
1.60 - 1.65 1800
1.65 - 1.70 1800
1.70 - 1.80 1750
1.80 - 1.90 1630
1.90 - 2.00 1530
The minimum width is 900 mm.
Widths smaller than 900 mm may be available - please contact us.
Surface conditions MB, MC are available, as well as Serica® premium surface finish.
Serica® availability can be found in our dedicated Serica page.
Please contact us on the availability of:
- specific coating weights
- surface condition MC with a thickness greater than 1.2 mm.
 

Galvannealed (GA) products

Dimensions in mm.

Thickness Max. width
From - up to DX56
0.50 - 0.60 1420
0.60 - 0.65 1700
0.65 - 1.45 1850
1.45 - 1.50 1800
1.50 - 1.60 1700
1.60 - 1.70 1600
1.70 - 1.75 1550
The minimum width is 900 mm.
 

MagiZinc® (ZM) products

Dimensions in mm.

Thickness  
From - up to DX56
0.40 - 0.45 -
0.45 - 0.60 1520
0.60 - 1.20 1550
1.20 - 2.00 -
The minimum width is 900 mm.
 

Tolerances

Tolerances comply with standard EN 10143 2006.
Tighter tolerances are available, please contact us for details.

EN-EngineeringAutomotive-Product-Metallic Coated-All Grades Shape and Dimensional Tolerances

Shape and dimensional tolerances

Tolerances on thickness

The tolerances comply with standard EN 10143: 2006.
Tighter tolerances are available on request.
Thickness tolerance availability is shown below:

Thickness tolerance

Availability

Full thickness tolerance

Available

Special thickness tolerance

Available

50% of full thickness tolerance

Refer before ordering

 

The following tolerances apply to the grades with a minimum value for the yield strength lower than 260N/mm².

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

> 0.40

≤ 0.60

± 0.04

± 0.05

± 0.06

± 0.035

± 0.040

± 0.045

> 0.60

≤ 0.80

± 0.05

± 0.06

± 0.07

± 0.040

± 0.045

± 0.050

> 0.80

≤ 1.00

± 0.06

± 0.07

± 0.08

± 0.045

± 0.050

± 0.060

> 1.00

≤ 1.20

± 0.07

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 1.20

≤ 1.60

± 0.10

± 0.11

± 0.12

± 0.060

± 0.070

± 0.080

> 1.60

≤ 2.00

± 0.12

± 0.13

± 0.14

± 0.070

± 0.080

± 0.090

> 2.00

≤ 2.50

± 0.14

± 0.15

± 0.16

± 0.090

± 0.100

± 0.110

> 2.50

≤ 3.00

± 0.17

± 0.17

± 0.18

± 0.110

± 0.120

± 0.130

> 3.00

≤ 5.00

± 0.20

± 0.20

± 0.21

± 0.15

± 0.16

± 0.17

> 5.00

≤ 6.50

± 0.22

± 0.22

± 0.23

± 0.17

± 0.18

± 0.19

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm.

 

The following tolerances apply to the steel grades with a minimum value for the yield strength 260N/mm² ≤ Rp0.2 < 360N/mm² and for grades DX51D and S550GD.

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.05

± 0.06

-

± 0.035

± 0.040

-

> 0.40

≤ 0.60

± 0.05

± 0.06

± 0.07

± 0.040

± 0.045

± 0.050

> 0.60

≤ 0.80

± 0.06

± 0.07

± 0.08

± 0.045

± 0.050

± 0.060

> 0.80

≤ 1.00

± 0.07

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 1.00

≤ 1.20

± 0.08

± 0.09

± 0.11

± 0.060

± 0.070

± 0.080

> 1.20

≤ 1.60

± 0.11

± 0.13

± 0.14

± 0.070

± 0.080

± 0.090

> 1.60

≤ 2.00

± 0.14

± 0.15

± 0.16

± 0.080

± 0.090

± 0.110

> 2.00

≤ 2.50

± 0.16

± 0.17

± 0.18

± 0.110

± 0.120

± 0.130

> 2.50

≤ 3.00

± 0.19

± 0.20

± 0.20

± 0.130

± 0.140

± 0.150

> 3.00

≤ 5.00

± 0.22

± 0.24

± 0.25

± 0.17

± 0.18

± 0.19

> 5.00

≤ 6.50

± 0.24

± 0.25

± 0.26

± 0.19

± 0.20

± 0.21

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm

 

The following tolerances apply to the steel grades with a minimum value for the yield strength 360N/mm² ≤ Rp0.2 ≤ 420N/mm².

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.05

± 0.06

-

± 0.040

± 0.045

-

> 0.40

≤ 0.60

± 0.06

± 0.07

± 0.08

± 0.045

± 0.050

± 0.060

> 0.60

≤ 0.80

± 0.07

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 0.80

≤ 1.00

± 0.08

± 0.09

± 0.11

± 0.060

± 0.070

± 0.080

> 1.00

≤ 1.20

± 0.10

± 0.11

± 0.12

± 0.070

± 0.080

± 0.090

> 1.20

≤ 1.60

± 0.13

± 0.14

± 0.16

± 0.080

± 0.090

± 0.110

> 1.60

≤ 2.00

± 0.16

± 0.17

± 0.19

± 0.090

± 0.110

± 0.120

> 2.00

≤ 2.50

± 0.18

± 0.20

± 0.21

± 0.120

± 0.130

± 0.140

> 2.50

≤ 3.00

± 0.22

± 0.22

± 0.23

± 0.140

± 0.150

± 0.160

> 3.00

≤ 5.00

± 0.22

± 0.24

± 0.25

± 0.17

± 0.18

± 0.19

> 5.00

≤ 6.50

± 0.24

± 0.25

± 0.26

± 0.19

± 0.20

± 0.21

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm.

 

The following tolerances apply to the steel grades with a minimum value for the yield strength 420N/mm² < Rp0.2 ≤ 900N/mm².

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.06

± 0.07

-

± 0.045

± 0.050

-

> 0.40

≤ 0.60

± 0.06

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 0.60

≤ 0.80

± 0.07

± 0.09

± 0.11

± 0.060

± 0.070

± 0.080

> 0.80

≤ 1.00

± 0.09

± 0.11

± 0.12

± 0.070

± 0.080

± 0.090

> 1.00

≤ 1.20

± 0.11

± 0.13

± 0.14

± 0.080

± 0.090

± 0.110

> 1.20

≤ 1.60

± 0.15

± 0.16

± 0.18

± 0.090

± 0.110

± 0.120

> 1.60

≤ 2.00

± 0.18

± 0.19

± 0.21

± 0.110

± 0.120

± 0.140

> 2.00

≤ 2.50

± 0.21

± 0.22

± 0.24

± 0.140

± 0.150

± 0.170

> 2.50

≤ 3.00

± 0.24

± 0.25

± 0.26

± 0.170

± 0.180

± 0.190

> 3.00

≤ 5.00

± 0.26

± 0.27

± 0.28

± 0.23

± 0.24

± 0.26

> 5.00

≤ 6.50

± 0.28

± 0.29

± 0.30

± 0.25

± 0.26

± 0.28

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm.

 

Tolerances on width

The tolerances on width comply with standard EN 10143: 2006
MagiZinc is not included in the standard, but fulfils EN 10143: 2006 requirements.
Tighter tolerances are available on request.

Tolerances in mm.

Nominal width w Normal tolerances Special tolerances (S)
600 ≤ w ≤ 1200 + 5
0
+ 2
0
1200 < w ≤ 1500 + 6
0
+ 2
0
1500 < w ≤ 1800 + 7
0
+ 3
0
w > 1800 + 8
0
+ 3
0

 

Dimensions and coil weights

Description Availability
Coil diameter inner 610mm
(508 mm available on request)
Coil diameter outer 10/7 x width max
1000mm min.
2500mm max.
Coil weight 30t max.
33t max available after consultation
Coil weight limited by maximum outer diameter
Maximum weight allowed by road/rail transport
Some products may have different coil weight ranges available
Usually a minimum coil weight up to 85% of the maximum coil weight can be requested
KIM: width ≤ 1200 mm 11.7 - 22.7 kg/mm width
KIM: 1200mm < width ≤ 1700 mm 11.6 - 21.7 kg/mm width
KIM: width > 1700 mm 11.0 kg/mm width and 11.6 - 21.7 kg/mm width
Minimum tonnage per order Refer to price list for order quantity details
Minimum order quantities may apply

 

EN-EngineeringAutomotive-Product-Metallic coated-All grades Further processing

Further processing

Further processing

We have a broad network of Tata Steel service centres across Europe, offering decoiling and slitting services from stock and against short lead times

Light gauge processing

Processing type Slitting Decoiling Blanking
Thickness range (mm) 0.2 - 7.0 0.3 - 6.0 0.3 - 6.0
Width range (mm) 10 - 2050 50 - 2600 200 - 2600
Length range - up to 6m up to 6m
Locations UK
Ireland
Netherlands
Germany
France
Spain
Sweden
Norway
Finland
UK
Ireland
Netherlands
Germany
France
Spain
Sweden
Norway
Finland
UK
Netherlands

For further information please visit our Service Centre webpages.

 

 

EN-Automotive-Product-Metallic coated-Forming-DX57D-GI/GA/ZM

DX57D-GI/GA/ZM
Specification details for DX57-GI/GA/ZM

EN-Automotive-Product-Metallic coated-Forming-All Grades Overview

Overview

Relationship with standards

 

Grade

VDA standard

VDA 239-100-16

European standard

EN 10346: 2015

DX51-GI/GA/ZM -

DX51D+Z/+ZF/+ZM

DX52-GI/GA/ZM CR1-GI/GA/ZM

DX52D+Z/+ZF/+ZM

DX53-GI/GA/ZM CR2-GI/GA/ZM

DX53D+Z/+ZF/+ZM

DX54-GI/GA/ZM CR3-GI/GA/ZM

DX54D+Z/+ZF/+ZM

DX56-GI/GA/ZM CR4-GI/GA/ZM

DX56D+Z/+ZF/+ZM

DX57-GI/GA/ZM CR5-GI/GA/ZM

DX57D+Z/+ZF/+ZM

DX58-GI/GA/ZM 1 -

-

1. Not in standard. Tata Steel’s own specification.

EN-Automotive-Product-Metallic coated-All Grades Coatings Surface aspects

Coatings and Surface aspects

Coatings

Three types of metallic coating are available:

  • Pure zinc. Galvanised steel (GI) is coated with an almost pure zinc coating (>99% zinc)
  • Zinc-iron alloy. Galvannealed steel (GA) is coated with a zinc coating containing approximately 8-12% iron
  • MagiZinc Auto. MagiZinc Auto steel (ZM) is coated with a zinc coating containing additional magnesium and aluminium.
     

Coating weight

Coating

Minimum

Maximum

Pure zinc (Z)

100 (7 µm/side)

600 (42 µm/side)

Zinc-iron (ZF)

100 (7 µm/side)

140 (10 µm/side)

MagiZinc (ZM)

70 (5 µm/side)

200 (14 µm/side)

Coating weight measured in g/m2 double-sided (µm, per side).

Surface condition

Surface condition complies with standard: EN 10346:2015. Galvanised steels are available in surface conditions with minimised spangle MB or MC. Galvannealed steels and MagiZinc Auto are available in surface conditions B or C.

Surface condition B: improved surface, suitable for unexposed parts

With this surface condition, small imperfections such as stretch levelling breaks, skin pass marks, slight scratches, indentations, surface structure, zinc run-off marks and light passivation stains are permissible.

Surface condition C: best quality surface, suitable for exposed parts

Surface condition C is obtained by skin passing. The controlled surface for the exposed side enables application of a uniform paint finish. The reverse surface has, at least, the characteristics of surface quality B.

Surface finish

Galvanised (GI) grades with surface condition MC are available with different levels of surface finish. For exposed body panels with stringent paint appearance requirements we offer ‘regular’ surface finish. For panels with the highest paint appearance requirements we recommend the premium surface finish Serica®.

Surface roughness

Metallic coated steel for automotive applications can be supplied in various grades of roughness to comply with individual customer norms. If no roughness is specified, roughness will be as shown in the table below

Roughness Ra (µm)
cut off 0.8mm cut off 2.5mm
0.6 - 1.9 0.7 - 2.2

​​​Surface treatments

The surface treatments available are oiling and T-treatment.

Oiling (O)

The material surface can be oiled with preservative oil. Other types of oil - for increasing strength or reducing weight – are available to help achieve your optimum performance parameters. Please contact us for details.

Tata Steel offers the following range of oiling levels:

Coating type Oiling level
Pure zinc (GI) 0.25 - 1.7 g/m2
Zinc-iron(GA) 0.5 - 1.5 g/m2
MagiZinc Auto(ZM) 0.25 - 1.0 g/m2

Other oiling levels are available on request.
 

T-treatment

Please contact us for further information.

Prime Lubrication Treatment (PLT)

Prime Lubrication Treatment facilitates the manufacturing of stamped components by minimising known issues in stamping and joining.

For further information please visit our dedicate Prime Lubrication Treatment (PLT) page.

 

 

EN-Automotive-Product-Metallic coated-Forming-DX57D-Properties

Properties

Properties


Mechanical properties

Metallic coated steel for forming has the following mechanical properties. These are measured transverse to the rolling direction.
Property range is indicated according to EN 10346, but properties meet equivalent VDA 239-100 specifications also.

  Grade DX57-GI DX57-GA/ZM
Yield strength Re N/mm² 120 - 170 120 - 170
Tensile strength Rm N/mm² 260 - 350 260 - 350
Elongation % 41 39
Min. r-value   2.1 1.9
Min. n-value   0.22 0.21
If the yield point is not pronounced, the values apply to the 0.2% - proof strength Rp0.2 ; if the yield strength is pronounced, the values apply to the lower yield point ReL.
Decreased minimum elongation values apply for product thickness t ≤ 0.50 mm (minus 4 units) and for 0.50 mm ≤ t ≤ 0.70 mm (minus 2 units).
Elongation after fraction A uses test piece length L0 = 80 mm.
For t > 1.5 mm, the minimum r90 - value reduced by 0.2 applies.
For t ≤ 0.7 mm, the minimum r90 - value reduced by 0.2 and minimum n90- value reduced by 0.01 apply.
 

Chemical composition

Tata Steel complies with the following cast analysis:

  Grade DX57
C Max. 0.12
Mn Max. 0.60
P Max. 0.10
S Max. 0.045
Al Min. -
N Max. -
Ti Max. 0.30
All values in weight%.

EN-Automotive-Product-Metallic coated-Forming-DX57D-Dimensions

Dimensions

Dimensional capability

Galvanised (GI) products

Dimensions in mm.

Thickness Max. width
From - up to DX57 
0.50 - 0.55 1470
0.55 - 0.60 1590
0.60 - 0.65 1710
0.65 - 0.70 1840
0.70 - 1.25 1800
1.25 - 1.50 1790
The minimum width is 900 mm.
Widths smaller than 900 mm are available on request. Please contact us.
Surface conditions MB, MC are available, as well as Serica® premium surface finish.
Serica® availability can be found in our dedicated Serica page.
Please contact us on the availability of:
- specific coating weights
- surface condition MC with a thickness greater than 1.2 mm.
For DX57-GA products, please contact us for available widths.
For DX57-ZM products, please contact us for available widths.
 

Tolerances

Tolerances comply with standard EN 10143 2006.
Tighter tolerances are available, please contact us for details.

EN-EngineeringAutomotive-Product-Metallic Coated-All Grades Shape and Dimensional Tolerances

Shape and dimensional tolerances

Tolerances on thickness

The tolerances comply with standard EN 10143: 2006.
Tighter tolerances are available on request.
Thickness tolerance availability is shown below:

Thickness tolerance

Availability

Full thickness tolerance

Available

Special thickness tolerance

Available

50% of full thickness tolerance

Refer before ordering

 

The following tolerances apply to the grades with a minimum value for the yield strength lower than 260N/mm².

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

> 0.40

≤ 0.60

± 0.04

± 0.05

± 0.06

± 0.035

± 0.040

± 0.045

> 0.60

≤ 0.80

± 0.05

± 0.06

± 0.07

± 0.040

± 0.045

± 0.050

> 0.80

≤ 1.00

± 0.06

± 0.07

± 0.08

± 0.045

± 0.050

± 0.060

> 1.00

≤ 1.20

± 0.07

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 1.20

≤ 1.60

± 0.10

± 0.11

± 0.12

± 0.060

± 0.070

± 0.080

> 1.60

≤ 2.00

± 0.12

± 0.13

± 0.14

± 0.070

± 0.080

± 0.090

> 2.00

≤ 2.50

± 0.14

± 0.15

± 0.16

± 0.090

± 0.100

± 0.110

> 2.50

≤ 3.00

± 0.17

± 0.17

± 0.18

± 0.110

± 0.120

± 0.130

> 3.00

≤ 5.00

± 0.20

± 0.20

± 0.21

± 0.15

± 0.16

± 0.17

> 5.00

≤ 6.50

± 0.22

± 0.22

± 0.23

± 0.17

± 0.18

± 0.19

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm.

 

The following tolerances apply to the steel grades with a minimum value for the yield strength 260N/mm² ≤ Rp0.2 < 360N/mm² and for grades DX51D and S550GD.

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.05

± 0.06

-

± 0.035

± 0.040

-

> 0.40

≤ 0.60

± 0.05

± 0.06

± 0.07

± 0.040

± 0.045

± 0.050

> 0.60

≤ 0.80

± 0.06

± 0.07

± 0.08

± 0.045

± 0.050

± 0.060

> 0.80

≤ 1.00

± 0.07

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 1.00

≤ 1.20

± 0.08

± 0.09

± 0.11

± 0.060

± 0.070

± 0.080

> 1.20

≤ 1.60

± 0.11

± 0.13

± 0.14

± 0.070

± 0.080

± 0.090

> 1.60

≤ 2.00

± 0.14

± 0.15

± 0.16

± 0.080

± 0.090

± 0.110

> 2.00

≤ 2.50

± 0.16

± 0.17

± 0.18

± 0.110

± 0.120

± 0.130

> 2.50

≤ 3.00

± 0.19

± 0.20

± 0.20

± 0.130

± 0.140

± 0.150

> 3.00

≤ 5.00

± 0.22

± 0.24

± 0.25

± 0.17

± 0.18

± 0.19

> 5.00

≤ 6.50

± 0.24

± 0.25

± 0.26

± 0.19

± 0.20

± 0.21

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm

 

The following tolerances apply to the steel grades with a minimum value for the yield strength 360N/mm² ≤ Rp0.2 ≤ 420N/mm².

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.05

± 0.06

-

± 0.040

± 0.045

-

> 0.40

≤ 0.60

± 0.06

± 0.07

± 0.08

± 0.045

± 0.050

± 0.060

> 0.60

≤ 0.80

± 0.07

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 0.80

≤ 1.00

± 0.08

± 0.09

± 0.11

± 0.060

± 0.070

± 0.080

> 1.00

≤ 1.20

± 0.10

± 0.11

± 0.12

± 0.070

± 0.080

± 0.090

> 1.20

≤ 1.60

± 0.13

± 0.14

± 0.16

± 0.080

± 0.090

± 0.110

> 1.60

≤ 2.00

± 0.16

± 0.17

± 0.19

± 0.090

± 0.110

± 0.120

> 2.00

≤ 2.50

± 0.18

± 0.20

± 0.21

± 0.120

± 0.130

± 0.140

> 2.50

≤ 3.00

± 0.22

± 0.22

± 0.23

± 0.140

± 0.150

± 0.160

> 3.00

≤ 5.00

± 0.22

± 0.24

± 0.25

± 0.17

± 0.18

± 0.19

> 5.00

≤ 6.50

± 0.24

± 0.25

± 0.26

± 0.19

± 0.20

± 0.21

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm.

 

The following tolerances apply to the steel grades with a minimum value for the yield strength 420N/mm² < Rp0.2 ≤ 900N/mm².

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.06

± 0.07

-

± 0.045

± 0.050

-

> 0.40

≤ 0.60

± 0.06

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 0.60

≤ 0.80

± 0.07

± 0.09

± 0.11

± 0.060

± 0.070

± 0.080

> 0.80

≤ 1.00

± 0.09

± 0.11

± 0.12

± 0.070

± 0.080

± 0.090

> 1.00

≤ 1.20

± 0.11

± 0.13

± 0.14

± 0.080

± 0.090

± 0.110

> 1.20

≤ 1.60

± 0.15

± 0.16

± 0.18

± 0.090

± 0.110

± 0.120

> 1.60

≤ 2.00

± 0.18

± 0.19

± 0.21

± 0.110

± 0.120

± 0.140

> 2.00

≤ 2.50

± 0.21

± 0.22

± 0.24

± 0.140

± 0.150

± 0.170

> 2.50

≤ 3.00

± 0.24

± 0.25

± 0.26

± 0.170

± 0.180

± 0.190

> 3.00

≤ 5.00

± 0.26

± 0.27

± 0.28

± 0.23

± 0.24

± 0.26

> 5.00

≤ 6.50

± 0.28

± 0.29

± 0.30

± 0.25

± 0.26

± 0.28

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm.

 

Tolerances on width

The tolerances on width comply with standard EN 10143: 2006
MagiZinc is not included in the standard, but fulfils EN 10143: 2006 requirements.
Tighter tolerances are available on request.

Tolerances in mm.

Nominal width w Normal tolerances Special tolerances (S)
600 ≤ w ≤ 1200 + 5
0
+ 2
0
1200 < w ≤ 1500 + 6
0
+ 2
0
1500 < w ≤ 1800 + 7
0
+ 3
0
w > 1800 + 8
0
+ 3
0

 

Dimensions and coil weights

Description Availability
Coil diameter inner 610mm
(508 mm available on request)
Coil diameter outer 10/7 x width max
1000mm min.
2500mm max.
Coil weight 30t max.
33t max available after consultation
Coil weight limited by maximum outer diameter
Maximum weight allowed by road/rail transport
Some products may have different coil weight ranges available
Usually a minimum coil weight up to 85% of the maximum coil weight can be requested
KIM: width ≤ 1200 mm 11.7 - 22.7 kg/mm width
KIM: 1200mm < width ≤ 1700 mm 11.6 - 21.7 kg/mm width
KIM: width > 1700 mm 11.0 kg/mm width and 11.6 - 21.7 kg/mm width
Minimum tonnage per order Refer to price list for order quantity details
Minimum order quantities may apply

 

EN-EngineeringAutomotive-Product-Metallic coated-All grades Further processing

Further processing

Further processing

We have a broad network of Tata Steel service centres across Europe, offering decoiling and slitting services from stock and against short lead times

Light gauge processing

Processing type Slitting Decoiling Blanking
Thickness range (mm) 0.2 - 7.0 0.3 - 6.0 0.3 - 6.0
Width range (mm) 10 - 2050 50 - 2600 200 - 2600
Length range - up to 6m up to 6m
Locations UK
Ireland
Netherlands
Germany
France
Spain
Sweden
Norway
Finland
UK
Ireland
Netherlands
Germany
France
Spain
Sweden
Norway
Finland
UK
Netherlands

For further information please visit our Service Centre webpages.

 

 

EN-Automotive-Product-Metallic coated-Forming-DX58D-GI-GA-ZM

DX58-GI
Specification details for DX58-GI/GA/ZM

EN-Automotive-Product-Metallic coated-Forming-All Grades Overview

Overview

Relationship with standards

 

Grade

VDA standard

VDA 239-100-16

European standard

EN 10346: 2015

DX51-GI/GA/ZM -

DX51D+Z/+ZF/+ZM

DX52-GI/GA/ZM CR1-GI/GA/ZM

DX52D+Z/+ZF/+ZM

DX53-GI/GA/ZM CR2-GI/GA/ZM

DX53D+Z/+ZF/+ZM

DX54-GI/GA/ZM CR3-GI/GA/ZM

DX54D+Z/+ZF/+ZM

DX56-GI/GA/ZM CR4-GI/GA/ZM

DX56D+Z/+ZF/+ZM

DX57-GI/GA/ZM CR5-GI/GA/ZM

DX57D+Z/+ZF/+ZM

DX58-GI/GA/ZM 1 -

-

1. Not in standard. Tata Steel’s own specification.

EN-Automotive-Product-Metallic coated-All Grades Coatings Surface aspects

Coatings and Surface aspects

Coatings

Three types of metallic coating are available:

  • Pure zinc. Galvanised steel (GI) is coated with an almost pure zinc coating (>99% zinc)
  • Zinc-iron alloy. Galvannealed steel (GA) is coated with a zinc coating containing approximately 8-12% iron
  • MagiZinc Auto. MagiZinc Auto steel (ZM) is coated with a zinc coating containing additional magnesium and aluminium.
     

Coating weight

Coating

Minimum

Maximum

Pure zinc (Z)

100 (7 µm/side)

600 (42 µm/side)

Zinc-iron (ZF)

100 (7 µm/side)

140 (10 µm/side)

MagiZinc (ZM)

70 (5 µm/side)

200 (14 µm/side)

Coating weight measured in g/m2 double-sided (µm, per side).

Surface condition

Surface condition complies with standard: EN 10346:2015. Galvanised steels are available in surface conditions with minimised spangle MB or MC. Galvannealed steels and MagiZinc Auto are available in surface conditions B or C.

Surface condition B: improved surface, suitable for unexposed parts

With this surface condition, small imperfections such as stretch levelling breaks, skin pass marks, slight scratches, indentations, surface structure, zinc run-off marks and light passivation stains are permissible.

Surface condition C: best quality surface, suitable for exposed parts

Surface condition C is obtained by skin passing. The controlled surface for the exposed side enables application of a uniform paint finish. The reverse surface has, at least, the characteristics of surface quality B.

Surface finish

Galvanised (GI) grades with surface condition MC are available with different levels of surface finish. For exposed body panels with stringent paint appearance requirements we offer ‘regular’ surface finish. For panels with the highest paint appearance requirements we recommend the premium surface finish Serica®.

Surface roughness

Metallic coated steel for automotive applications can be supplied in various grades of roughness to comply with individual customer norms. If no roughness is specified, roughness will be as shown in the table below

Roughness Ra (µm)
cut off 0.8mm cut off 2.5mm
0.6 - 1.9 0.7 - 2.2

​​​Surface treatments

The surface treatments available are oiling and T-treatment.

Oiling (O)

The material surface can be oiled with preservative oil. Other types of oil - for increasing strength or reducing weight – are available to help achieve your optimum performance parameters. Please contact us for details.

Tata Steel offers the following range of oiling levels:

Coating type Oiling level
Pure zinc (GI) 0.25 - 1.7 g/m2
Zinc-iron(GA) 0.5 - 1.5 g/m2
MagiZinc Auto(ZM) 0.25 - 1.0 g/m2

Other oiling levels are available on request.
 

T-treatment

Please contact us for further information.

Prime Lubrication Treatment (PLT)

Prime Lubrication Treatment facilitates the manufacturing of stamped components by minimising known issues in stamping and joining.

For further information please visit our dedicate Prime Lubrication Treatment (PLT) page.

 

 

EN-Automotive-Product-Metallic coated-Forming-DX58D-Properties

Properties

Properties


Mechanical properties

Metallic coated steel for forming has the following mechanical properties. These are measured transverse to the rolling direction.
Not in EN 10346: 2015. Tata Steel’s own specification. Properties exceed VDA 239-100 CR5-GI.

Tata Steel Grade DX58
Yield strength Re N/mm² 120 - 155
Tensile strength Rm N/mm² 260 - 310
Elongation % 43
Min. r-value   2.30
Min. n-value   0.225
If the yield point is not pronounced, the values apply to the 0.2% - proof strength Rp0.2 ; if the yield strength is pronounced, the values apply to the lower yield point ReL.
Decreased minimum elongation values apply for product thickness t ≤ 0.50 mm (minus 4 units) and for 0.50 mm ≤ t ≤ 0.70 mm (minus 2 units).
Elongation after fraction A uses test piece length L0 = 80 mm.
 

Chemical composition

Tata Steel complies with the following cast analysis,
Not in EN 10346: 2015, Tata Steel’s own specification.

Tata Steel Grade DX58
C Max. 0.xx
Mn Max. 0.xx
P Max. 0.xx
S Max. 0.0xx
Al Min. -
N Max. -
Ti Max. 0.xx
All values are in weight%.

EN-Automotive-Product-Metallic coated-Forming-DX58D-Dimensions

Dimensions

Dimensional capability

Galvanised (GI) products

Dimensions in mm.

Thickness Max. width
From - up to DX58
0.60 - 0.65 -
0.65 - 0.70 1970 estimated PG2
0.70 - 0.75 1970 estimated PG2
0.75 - 0.80 -
0.80 - 1.20 -
1.20 - 1.25 -
1.25 - 1.30 -
1.30 - 1.40 -
1.40 - 1.50 -
1.50 - 1.60 -
1.60 - 1.65 -
1.65 - 1.70 -
1.70 - 1.75 -
1.75 - 1.80 -
1.80 - 1.90 -
1.90 - 2.00 -
The minimum width is 900 mm.
Widths smaller than 900 mm are available on request. Please contact us.
Surface conditions MB, MC are available, as well as Serica® premium surface finish.
Serica® availability can be found in our dedicated Serica page.
Please contact us on the availability of:
- specific coating weights
- surface condition MC with a thickness greater than 1.2 mm.

For DX58D+ZF and DX58D+ZM products, please contact us for available widths.
 

Tolerances

Tolerances comply with standard EN 10143 2006.
Tighter tolerances are available, please contact us for details.

EN-EngineeringAutomotive-Product-Metallic Coated-All Grades Shape and Dimensional Tolerances

Shape and dimensional tolerances

Tolerances on thickness

The tolerances comply with standard EN 10143: 2006.
Tighter tolerances are available on request.
Thickness tolerance availability is shown below:

Thickness tolerance

Availability

Full thickness tolerance

Available

Special thickness tolerance

Available

50% of full thickness tolerance

Refer before ordering

 

The following tolerances apply to the grades with a minimum value for the yield strength lower than 260N/mm².

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

> 0.40

≤ 0.60

± 0.04

± 0.05

± 0.06

± 0.035

± 0.040

± 0.045

> 0.60

≤ 0.80

± 0.05

± 0.06

± 0.07

± 0.040

± 0.045

± 0.050

> 0.80

≤ 1.00

± 0.06

± 0.07

± 0.08

± 0.045

± 0.050

± 0.060

> 1.00

≤ 1.20

± 0.07

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 1.20

≤ 1.60

± 0.10

± 0.11

± 0.12

± 0.060

± 0.070

± 0.080

> 1.60

≤ 2.00

± 0.12

± 0.13

± 0.14

± 0.070

± 0.080

± 0.090

> 2.00

≤ 2.50

± 0.14

± 0.15

± 0.16

± 0.090

± 0.100

± 0.110

> 2.50

≤ 3.00

± 0.17

± 0.17

± 0.18

± 0.110

± 0.120

± 0.130

> 3.00

≤ 5.00

± 0.20

± 0.20

± 0.21

± 0.15

± 0.16

± 0.17

> 5.00

≤ 6.50

± 0.22

± 0.22

± 0.23

± 0.17

± 0.18

± 0.19

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm.

 

The following tolerances apply to the steel grades with a minimum value for the yield strength 260N/mm² ≤ Rp0.2 < 360N/mm² and for grades DX51D and S550GD.

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.05

± 0.06

-

± 0.035

± 0.040

-

> 0.40

≤ 0.60

± 0.05

± 0.06

± 0.07

± 0.040

± 0.045

± 0.050

> 0.60

≤ 0.80

± 0.06

± 0.07

± 0.08

± 0.045

± 0.050

± 0.060

> 0.80

≤ 1.00

± 0.07

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 1.00

≤ 1.20

± 0.08

± 0.09

± 0.11

± 0.060

± 0.070

± 0.080

> 1.20

≤ 1.60

± 0.11

± 0.13

± 0.14

± 0.070

± 0.080

± 0.090

> 1.60

≤ 2.00

± 0.14

± 0.15

± 0.16

± 0.080

± 0.090

± 0.110

> 2.00

≤ 2.50

± 0.16

± 0.17

± 0.18

± 0.110

± 0.120

± 0.130

> 2.50

≤ 3.00

± 0.19

± 0.20

± 0.20

± 0.130

± 0.140

± 0.150

> 3.00

≤ 5.00

± 0.22

± 0.24

± 0.25

± 0.17

± 0.18

± 0.19

> 5.00

≤ 6.50

± 0.24

± 0.25

± 0.26

± 0.19

± 0.20

± 0.21

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm

 

The following tolerances apply to the steel grades with a minimum value for the yield strength 360N/mm² ≤ Rp0.2 ≤ 420N/mm².

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.05

± 0.06

-

± 0.040

± 0.045

-

> 0.40

≤ 0.60

± 0.06

± 0.07

± 0.08

± 0.045

± 0.050

± 0.060

> 0.60

≤ 0.80

± 0.07

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 0.80

≤ 1.00

± 0.08

± 0.09

± 0.11

± 0.060

± 0.070

± 0.080

> 1.00

≤ 1.20

± 0.10

± 0.11

± 0.12

± 0.070

± 0.080

± 0.090

> 1.20

≤ 1.60

± 0.13

± 0.14

± 0.16

± 0.080

± 0.090

± 0.110

> 1.60

≤ 2.00

± 0.16

± 0.17

± 0.19

± 0.090

± 0.110

± 0.120

> 2.00

≤ 2.50

± 0.18

± 0.20

± 0.21

± 0.120

± 0.130

± 0.140

> 2.50

≤ 3.00

± 0.22

± 0.22

± 0.23

± 0.140

± 0.150

± 0.160

> 3.00

≤ 5.00

± 0.22

± 0.24

± 0.25

± 0.17

± 0.18

± 0.19

> 5.00

≤ 6.50

± 0.24

± 0.25

± 0.26

± 0.19

± 0.20

± 0.21

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm.

 

The following tolerances apply to the steel grades with a minimum value for the yield strength 420N/mm² < Rp0.2 ≤ 900N/mm².

Nominal
thickness

Normal tolerances for a nominal width of 1 2

Special tolerances (S) for a
nominal width of 1 2

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.06

± 0.07

-

± 0.045

± 0.050

-

> 0.40

≤ 0.60

± 0.06

± 0.08

± 0.09

± 0.050

± 0.060

± 0.070

> 0.60

≤ 0.80

± 0.07

± 0.09

± 0.11

± 0.060

± 0.070

± 0.080

> 0.80

≤ 1.00

± 0.09

± 0.11

± 0.12

± 0.070

± 0.080

± 0.090

> 1.00

≤ 1.20

± 0.11

± 0.13

± 0.14

± 0.080

± 0.090

± 0.110

> 1.20

≤ 1.60

± 0.15

± 0.16

± 0.18

± 0.090

± 0.110

± 0.120

> 1.60

≤ 2.00

± 0.18

± 0.19

± 0.21

± 0.110

± 0.120

± 0.140

> 2.00

≤ 2.50

± 0.21

± 0.22

± 0.24

± 0.140

± 0.150

± 0.170

> 2.50

≤ 3.00

± 0.24

± 0.25

± 0.26

± 0.170

± 0.180

± 0.190

> 3.00

≤ 5.00

± 0.26

± 0.27

± 0.28

± 0.23

± 0.24

± 0.26

> 5.00

≤ 6.50

± 0.28

± 0.29

± 0.30

± 0.25

± 0.26

± 0.28

1. Around cold-rolled welds an increase of 20% at the most over the thickness tolerance is allowed
   over a length of 15 metres.
2. For zinc coatings ≥ Z450 the tolerance on the thickness must be raised by 0.02mm.

 

Tolerances on width

The tolerances on width comply with standard EN 10143: 2006
MagiZinc is not included in the standard, but fulfils EN 10143: 2006 requirements.
Tighter tolerances are available on request.

Tolerances in mm.

Nominal width w Normal tolerances Special tolerances (S)
600 ≤ w ≤ 1200 + 5
0
+ 2
0
1200 < w ≤ 1500 + 6
0
+ 2
0
1500 < w ≤ 1800 + 7
0
+ 3
0
w > 1800 + 8
0
+ 3
0

 

Dimensions and coil weights

Description Availability
Coil diameter inner 610mm
(508 mm available on request)
Coil diameter outer 10/7 x width max
1000mm min.
2500mm max.
Coil weight 30t max.
33t max available after consultation
Coil weight limited by maximum outer diameter
Maximum weight allowed by road/rail transport
Some products may have different coil weight ranges available
Usually a minimum coil weight up to 85% of the maximum coil weight can be requested
KIM: width ≤ 1200 mm 11.7 - 22.7 kg/mm width
KIM: 1200mm < width ≤ 1700 mm 11.6 - 21.7 kg/mm width
KIM: width > 1700 mm 11.0 kg/mm width and 11.6 - 21.7 kg/mm width
Minimum tonnage per order Refer to price list for order quantity details
Minimum order quantities may apply

 

EN-EngineeringAutomotive-Product-Metallic coated-All grades Further processing

Further processing

Further processing

We have a broad network of Tata Steel service centres across Europe, offering decoiling and slitting services from stock and against short lead times

Light gauge processing

Processing type Slitting Decoiling Blanking
Thickness range (mm) 0.2 - 7.0 0.3 - 6.0 0.3 - 6.0
Width range (mm) 10 - 2050 50 - 2600 200 - 2600
Length range - up to 6m up to 6m
Locations UK
Ireland
Netherlands
Germany
France
Spain
Sweden
Norway
Finland
UK
Ireland
Netherlands
Germany
France
Spain
Sweden
Norway
Finland
UK
Netherlands

For further information please visit our Service Centre webpages.