Cold-rolled
Advanced and Ultra High-Strength Steel

Our cold-rolled dual phase and hot forming grades include advanced (AHSS) and ultra-high-strength steels (UHSS).


Originally developed for the demanding automotive market, they also meet a variety of performance and processing requirements for other advanced applications.

Our advanced and ultra high-strength cold-rolled steels DP600, DP800, DP1000 and HQ1500 are lightweight and enable design freedom for complex parts.

Their high yield and ductility ensure shape accuracy and tolerancing, which enable thickness reduction and maintained in-service performance for difficult-to-form parts.
 

 

Cold-rolled profile
Cold-rolled annealing line, Port Talbot, UK
Product specification
Advanced high-strength steel is currently available in the following grades

EN-Automotive-Product-Cold-rolled-AHSS UHSS-DP600

DP600
Specification details for DP600

EN-Automotive-Product-Cold-rolled-AHSS-All Grades Overview

Overview

The good formability of our advanced and ultra high stength steelsallows the user to increase the strength of the finished Automotive components by exploiting the high work-hardening characteristics. Substitution of high strength steel grades provides opportunities to reduce thickness while maintaining the in-service performance, resulting in potential cost and mass savings.

Dual phase grades

Cold-rolled dual phase steels allow you to increase the strength of the finished component or reduce the thickness of the steel - or both. By increasing product performance and helping reduce weight, these steels support you to achieve your optimum performance parameters. The use of dual phase grades increases the output from each tonne of steel and produces products that are strong, light and safe under load. High strain-hardening capacity ensures our dual phase steels have good formability.

Hot forming steel - CR HQ1500-UC

Our CR HQ1500-UC product is an uncoated, ultra high-strength hot forming steel. It combines a strength level of 1500 N/mm2 with excellent shape accuracy. Compared with conventional high-strength, low-alloy grades, CR HQ1500-UC offers real opportunities for weight reduction through down-gauging. It also ensures good repeatability in long production runs when compared with cold press forming.

 

Applications

Body in white, structural and reinforcement components and lightweight structural seat components

Relationship with standards

Tata Steel can supply the following cold-rolled advanced and ultra high-strength steel grades: 

Tata Steel VDA EN 10338: 2015 EN 10083: 2009
DP600 CR330Y590T-DP HCT590X -
DP800 CR440Y780T-DP HCT780X -
DP1000 CR590Y980T-DP HCT980X -
HQ1500 - - 20MnB5 1
1. This grade is also widely known as 22MnB5.

EN-EngineeringAutomotive-Product-Cold-rolled-All Grades Surface aspects

Surface aspects

Surface quality

 

Surface quality A

Defects that do not influence the formability or the application of surface coatings are permitted. They are defects such as pores, minor scratches, slight indentations, small grooves or slight discolouration. 

Surface quality B

The better side must be free of defects that can spoil the uniform appearance of a high-quality paint or of an electrolytic coating. The other side must at least conform to surface quality A. Not all combinations of thickness and width are available in surface quality B. Please contact us for details. 

Inspected side

As a rule, the upper side of the strip is inspected; on request, the strip can be wound so that the inspected side is the underside.

 

Surface texture/roughness

Cold-rolled annealed and skin-passed steel is available in several surface textures. Unless specified otherwise, Tata Steel will supply normal roughness. The table below shows the range of surface textures according to EN 10130:2006.

 

 

Roughness Ra
(µm)

EN 10130: 2006 Grade

Symbol

cut off 0.8 mm

extra-bright 1

-

≤ 0.3

bright

b

≤ 0.4

semi-bright

g

≤ 0.9

normal

m

0.6 - 1.9

rough

r

> 1.6

extra rough 1

-

3.5 - 5

1. Not in EN 10130:2006 - Tata Steel’s own specification, measured with a cut off of 2.5 mm.
Other surface textures are available to meet your requirements - please contact us for details

 

Preservative oil

The standard oil applied by Tata Steel acts as a protective coating. Other types of oil may be available to meet your requirement.
Tata Steel offers a range of oiling levels from 0.25 - 1.7 g/m2 per side.
Other oiling levels are available on request. Tata Steel is not responsible for the risk of corrosion during storage or shipment if material is ordered in the un-oiled condition.

 

Surface cleanliness

Tata Steel can guarantee improved surface cleanliness on request for batch-annealed products. The cleanliness is tested with a tape test, in which the loss of reflection is measured. The reflection gives an indication of the oil residue on the annealed product. Two levels of loss of reflectivity are available for batch annealed products: a maximum of 20% or a maximum of 30%. Continuously-annealed products typically exhibit a loss of reflection up to around 10%.

 

 

EN-Engineering-Product-Cold-rolled-AHSS-DP600-Properties

Properties

Properties


Mechanical properties

The values shown for the mechanical properties in the table below are for test pieces taken parallel to the rolling direction.

  Grade DP600
Yield strength1 Rp0.2 N/mm² 340 - 420
Tensile strength Rm N/mm² 600
Elongation % 20
Min. n-value (10% - Ag)   0.14
Min. BH2 N/mm² 30
 
 
 
 
1. Yield strength refers to the 0.2% proof strength for the product.
Elongation after fraction A uses test piece length L0 = 80 mm.
 

Chemical composition

The table below shows the chemical composition to the draft EN 10338: 2015.

  Grade DP600
C Max. 0.17
Mn Max. 2.20
P Max. 0.080
S Max. 0.015
Si Max. 0.80
Altot   ≤ 2.00
Cr + Mo Max. 1.00
Nb + Ti Max. 0.15
V Max. 0.20
B Max. 0.005
All values are in weight%.

EN-Automotive-Product-Cold-rolled-AHSS-DP600-Dimensions

Dimensions

Dimensional capability - Continuously annealed (CA)

Order volumes may apply to some dimensions - please contact us for details.

Dimensions in mm.

Thickness Max. width
From - up to DP600
0.70 - 0.80 -
0.80 - 1.40 1440
1.40 - 2.00 1500
DP600 thicknesses from 0.7 mm up to 0.8 mm are under development. Please contact us for latest availability.
Minimum width is 900 mm.
 

Tolerances

Tolerances on shape and dimensions comply with standard EN 10131: 2006
Tighter tolerances are available, please contact us for details.

EN-EngineeringAutomotive-Product-Cold-rolled-All Grades Shape and Dimensional Tolerances

Shape and dimensional tolerances

Tolerances on shape and dimensions comply with standard EN 10131: 2006

 

Tolerances on thickness

Tolerance (EN 10131: 2006)

Availability

Full thickness tolerance

Available

Special thickness tolerances

Available

50% of full thickness tolerance

Refer before ordering

Tolerances closer than special tolerances may be agreed at the time of enquiry.
Tolerances in mm.

 

Tolerances on thickness for steel grades with a specified minimum yield strength
Re < 260N/mm2.

Nominal
thickness

Normal tolerances for a nominal width of 1

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

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.03

± 0.04

± 0.05

± 0.020

± 0.025

± 0.030

> 0.40

≤ 0.60

± 0.03

± 0.04

± 0.05

± 0.025

± 0.030

± 0.035

> 0.60

≤ 0.80

± 0.04

± 0.05

± 0.06

± 0.030

± 0.035

± 0.040

> 0.80

≤ 1.00

± 0.05

± 0.06

± 0.07

± 0.035

± 0.040

± 0.050

> 1.00

≤ 1.20

± 0.06

± 0.07

± 0.08

± 0.040

± 0.050

± 0.060

> 1.20

≤ 1.60

± 0.08

± 0.09

± 0.10

± 0.050

± 0.060

± 0.070

> 1.60

≤ 2.00

± 0.10

± 0.11

± 0.12

± 0.060

± 0.070

± 0.080

> 2.00

≤ 2.50

± 0.12

± 0.13

± 0.14

± 0.080

± 0.090

± 0.100

> 2.50

≤ 3.00

± 0.15

± 0.15

± 0.16

± 0.100

± 0.110

± 0.120

1. Around cold-rolled welds - the pickling welds - an increase of 20% at the most over the thickness
   is allowed over a length of 15 metres.
2. For special tolerances, not all combinations of thickness and width are available in every product.
   Please contact us for more details.

 

Tolerances on thickness for steel grades with a specified minimum yield strength 
260 N/mm2 ≤ Re < 340N/mm2.

Nominal
thickness

Normal tolerances for a nominal width of 1

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

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.04

± 0.05

± 0.06

± 0.025

± 0.030

± 0.035

> 0.40

≤ 0.60

± 0.04

± 0.05

± 0.06

± 0.030

± 0.035

± 0.040

> 0.60

≤ 0.80

± 0.05

± 0.06

± 0.07

± 0.035

± 0.040

± 0.050

> 0.80

≤ 1.00

± 0.06

± 0.07

± 0.08

± 0.040

± 0.050

± 0.060

> 1.00

≤ 1.20

± 0.07

± 0.08

± 0.10

± 0.050

± 0.060

± 0.070

> 1.20

≤ 1.60

± 0.09

± 0.11

± 0.12

± 0.060

± 0.070

± 0.080

> 1.60

≤ 2.00

± 0.12

± 0.13

± 0.14

± 0.070

± 0.080

± 0.100

> 2.00

≤ 2.50

± 0.14

± 0.15

± 0.16

± 0.100

± 0.110

± 0.120

> 2.50

≤ 3.00

± 0.17

± 0.18

± 0.18

± 0.120

± 0.130

± 0.140

1. Around cold-rolled welds - the pickling welds - an increase of 20% at the most over the thickness
   is allowed over a length of 15 metres.
2. For special tolerances, not all combinations of thickness and width are available in every product.
   Please contact us for more details.

 

Tolerances on thickness for steel grades with a specified minimum yield strength
340N/mm2 ≤ Re ≤ 420N/mm2.

Nominal
thickness

Normal tolerances for a nominal width of 1

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

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.04

± 0.05

± 0.06

± 0.030

± 0.035

± 0.040

> 0.40

≤ 0.60

± 0.05

± 0.06

± 0.07

± 0.035

± 0.040

± 0.050

> 0.60

≤ 0.80

± 0.06

± 0.07

± 0.08

± 0.040

± 0.050

± 0.060

> 0.80

≤ 1.00

± 0.07

± 0.08

± 0.10

± 0.050

± 0.060

± 0.070

> 1.00

≤ 1.20

± 0.09

± 0.10

± 0.11

± 0.060

± 0.070

± 0.080

> 1.20

≤ 1.60

± 0.11

± 0.12

± 0.14

± 0.070

± 0.080

± 0.100

> 1.60

≤ 2.00

± 0.14

± 0.15

± 0.17

± 0.080

± 0.100

± 0.110

> 2.00

≤ 2.50

± 0.16

± 0.18

± 0.19

± 0.110

± 0.120

± 0.130

> 2.50

≤ 3.00

± 0.20

± 0.20

± 0.21

± 0.130

± 0.140

± 0.150

1. Around cold-rolled welds - the pickling welds - an increase of 20% at the most over the thickness
   is allowed over a length of 15 metres.
2. For special tolerances, not all combinations of thickness and width are available in every product.
   Please contact us for more details.

 

Tolerances on thickness for steel grades with a specified minimum yield strength
Re > 420N/mm2.

Nominal
thickness

Normal tolerances for a nominal width of 1

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

± 0.07

± 0.035

± 0.040

± 0.050

> 0.40

≤ 0.60

± 0.05

± 0.07

± 0.08

± 0.040

± 0.050

± 0.060

> 0.60

≤ 0.80

± 0.06

± 0.08

± 0.10

± 0.050

± 0.060

± 0.070

> 0.80

≤ 1.00

± 0.08

± 0.10

± 0.11

± 0.060

± 0.070

± 0.080

> 1.00

≤ 1.20

± 0.10

± 0.11

± 0.13

± 0.070

± 0.080

± 0.100

> 1.20

≤ 1.60

± 0.13

± 0.14

± 0.16

± 0.080

± 0.100

± 0.110

> 1.60

≤ 2.00

± 0.16

± 0.17

± 0.19

± 0.100

± 0.110

± 0.130

> 2.00

≤ 2.50

± 0.19

± 0.20

± 0.22

± 0.130

± 0.140

± 0.160

> 2.50

≤ 3.00

± 0.22

± 0.23

± 0.24

± 0.160

± 0.170

± 0.180

1. Around cold-rolled welds - the pickling welds - an increase of 20% at the most over the thickness
   is allowed over a length of 15 metres.
2. For special tolerances, not all combinations of thickness and width are available in every product.
   Please contact us for more details.

 

Tolerances on width

Tolerance 
(EN 10131: 2006)

Availability

Normal width tolerances

Available

Special width tolerances

Refer (± 0.50 mm available on 750 - 2000 mm width)

 

Nominal width w

Normal tolerances

Special tolerances (S)

 

Under

Over

Under

Over

w ≤ 1200

0

4

0

2

1200 < w ≤ 1500

0

5

0

2

w > 1500

0

6

0

3

 

Out-of-squareness (products supplied as cut sheets only)

The deviation does not exceed 1% of the actual width of the sheet according to the EN 10131: 2006 standard. The deviation from the edge camber does not exceed 5mm for a length of 2 metres as specified in EN 10131: 2006.

 

Flatness (products supplied as skin-passed cut sheets only)

Flatness complies with EN 10131: 2006
If there is a dispute about the flatness of material that was ordered to the special tolerances shown in table 8 of EN 10131: 2006, then the minimum acceptable standards of flatness described below must be verified.
Criteria in case of disputes over special (FS) flatness tolerances (ReL < 260 N/mm2)

Dimensions in mm.

Nominal width

Edge-wave length

Maximum acceptable wave height

< 1500

> 200

< 1% of edge-wave length

≥ 1500

> 200

< 1.5% of edge-wave length

< 200

 2mm

 

Winding

For winding, there may be a maximum width gap of 3mm between two con­se­cutive windings. The total width stagger across the coil wall will not exceed 10mm.

 

Dimensions and coil weights

Tata Steel can supply cold-rolled steel with the following minimum and maximum dimensions and coil weights.

Description Availability
Coil diameter inner 610mm
(508mm available on request)
Coil diameter outer 10/7 x width max
1000mm min.
2800mm max.
Coil weight 30 t max.
30 - 45 t 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 ≤ 1200mm 11.9 - 21.5 kg/mm width
KIM: 1200mm < width ≤ 1700mm 11.9 - 21 kg/mm width
KIM: width > 1700mm 10.3 kg/mm width and 11.9 - 21 kg/mm width
Minimum tonnage per order Refer to price list for order quantity details
Minimum order quantities may apply

 

 

Coil welds

For batch-annealed coils, in general, pickling line welds are included. The number of permissible recoiling line welds is determined in consultation with the customer. If welds are permitted, Tata Steel is better able to implement the best coil weight. A recoiling line weld is marked with a single hole in the centre of the strip, close to the weld. On request the identifying hole can be left out. Coils with welds are available on continuously-annealed products – please contact us for details. You can find details on how to get in touch with us in 'Contact Us' below.

 

EN-EngineeringAutomotive-Product-Cold-rolled-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-Cold-rolled-AHSS UHSS-DP800

DP800
Specification details for DP800

EN-Engineering-Product-Cold-rolled-AHSS-All Grades Overview

Overview

Grades

Dual phase grades

Cold-rolled dual phase steels allow you to increase the strength of the finished component or reduce the thickness of the steel - or both. By increasing product performance and helping reduce weight, these steels support you to achieve your optimum performance parameters. The use of dual phase grades increases the output from each tonne of steel and produces products that are strong, light and safe under load. High strain-hardening capacity ensures our dual phase steels have good formability.

Hot forming steel - HQ1500 CR

Our HQ1500 CR product is an uncoated, ultra high-strength hot forming steel. It combines a strength level of 1500 N/mm2 with excellent shape accuracy. Compared with conventional high-strength, low-alloy grades, HQ1500 CR offers real opportunities for weight reduction through down-gauging. It also ensures good repeatability in long production runs when compared with cold press forming.

 

Applications

  • Automotive body-in-white
  • Precision tubes

 

Relationship with standards

Tata Steel can supply the following cold-rolled advanced and ultra high-strength steel grades: 

Tata Steel

EN 10338: 2015

EN 10083: 2009

DP600

HCT590X

 

DP800

HCT780X

 

DP1000

HCT980X

 

HQ1500 CR

 

20MnB5 1

1. This grade is also widely known as 22MnB5.

 

EN-EngineeringAutomotive-Product-Cold-rolled-All Grades Surface aspects

Surface aspects

Surface quality

 

Surface quality A

Defects that do not influence the formability or the application of surface coatings are permitted. They are defects such as pores, minor scratches, slight indentations, small grooves or slight discolouration. 

Surface quality B

The better side must be free of defects that can spoil the uniform appearance of a high-quality paint or of an electrolytic coating. The other side must at least conform to surface quality A. Not all combinations of thickness and width are available in surface quality B. Please contact us for details. 

Inspected side

As a rule, the upper side of the strip is inspected; on request, the strip can be wound so that the inspected side is the underside.

 

Surface texture/roughness

Cold-rolled annealed and skin-passed steel is available in several surface textures. Unless specified otherwise, Tata Steel will supply normal roughness. The table below shows the range of surface textures according to EN 10130:2006.

 

 

Roughness Ra
(µm)

EN 10130: 2006 Grade

Symbol

cut off 0.8 mm

extra-bright 1

-

≤ 0.3

bright

b

≤ 0.4

semi-bright

g

≤ 0.9

normal

m

0.6 - 1.9

rough

r

> 1.6

extra rough 1

-

3.5 - 5

1. Not in EN 10130:2006 - Tata Steel’s own specification, measured with a cut off of 2.5 mm.
Other surface textures are available to meet your requirements - please contact us for details

 

Preservative oil

The standard oil applied by Tata Steel acts as a protective coating. Other types of oil may be available to meet your requirement.
Tata Steel offers a range of oiling levels from 0.25 - 1.7 g/m2 per side.
Other oiling levels are available on request. Tata Steel is not responsible for the risk of corrosion during storage or shipment if material is ordered in the un-oiled condition.

 

Surface cleanliness

Tata Steel can guarantee improved surface cleanliness on request for batch-annealed products. The cleanliness is tested with a tape test, in which the loss of reflection is measured. The reflection gives an indication of the oil residue on the annealed product. Two levels of loss of reflectivity are available for batch annealed products: a maximum of 20% or a maximum of 30%. Continuously-annealed products typically exhibit a loss of reflection up to around 10%.

 

 

EN-Automotive-Product-Cold-rolled-AHSS-DP800-Properties

Properties

Properties


Mechanical properties

The values shown for the mechanical properties in the table below are for test pieces taken parallel to the rolling direction.

  Grade DP800
Yield strength1 Rp0.2 N/mm² 450 - 560
Tensile strength Rm N/mm² 780
Elongation % 14
Min. n-value (10% - Ag)   -
Min. BH2 N/mm² 30
 
 
 
 
1. Yield strength refers to the 0.2% proof strength for the product.
Elongation after fraction A uses test piece length L0 = 80 mm.
 

Chemical composition

The table below shows the chemical composition to the draft EN 10338: 2015.

  Grade DP800
C Max. 0.18
Mn Max. 3.00
P Max. 0.080
S Max. 0.015
Si Max. 0.80
Altot   ≤ 2.00
Cr + Mo Max. 1.00
Nb + Ti Max. 0.15
V Max. 0.20
B Max. 0.005
All values are in weight%.

EN-Automotive-Product-Cold-rolled-AHSS-DP800-Dimensions

Dimensions

Dimensional capability - Continuously annealed (CA)

Order volumes may apply to some dimensions - please contact us for details.

Dimensions in mm.

Thickness Max. width
From - up to DP800
0.70 - 0.80 -
0.80 - 1.00 1400
1.00 - 2.00 1400
DP800 thicknesses from 0.7 mm up to 0.8 mm for widths up to 1475 mm are under development. Please contact us for latest availability.
Minimum width is 900 mm.
 

Tolerances

Tolerances on shape and dimensions comply with standard EN 10131: 2006
Tighter tolerances are available, please contact us for details.

EN-EngineeringAutomotive-Product-Cold-rolled-All Grades Shape and Dimensional Tolerances

Shape and dimensional tolerances

Tolerances on shape and dimensions comply with standard EN 10131: 2006

 

Tolerances on thickness

Tolerance (EN 10131: 2006)

Availability

Full thickness tolerance

Available

Special thickness tolerances

Available

50% of full thickness tolerance

Refer before ordering

Tolerances closer than special tolerances may be agreed at the time of enquiry.
Tolerances in mm.

 

Tolerances on thickness for steel grades with a specified minimum yield strength
Re < 260N/mm2.

Nominal
thickness

Normal tolerances for a nominal width of 1

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

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.03

± 0.04

± 0.05

± 0.020

± 0.025

± 0.030

> 0.40

≤ 0.60

± 0.03

± 0.04

± 0.05

± 0.025

± 0.030

± 0.035

> 0.60

≤ 0.80

± 0.04

± 0.05

± 0.06

± 0.030

± 0.035

± 0.040

> 0.80

≤ 1.00

± 0.05

± 0.06

± 0.07

± 0.035

± 0.040

± 0.050

> 1.00

≤ 1.20

± 0.06

± 0.07

± 0.08

± 0.040

± 0.050

± 0.060

> 1.20

≤ 1.60

± 0.08

± 0.09

± 0.10

± 0.050

± 0.060

± 0.070

> 1.60

≤ 2.00

± 0.10

± 0.11

± 0.12

± 0.060

± 0.070

± 0.080

> 2.00

≤ 2.50

± 0.12

± 0.13

± 0.14

± 0.080

± 0.090

± 0.100

> 2.50

≤ 3.00

± 0.15

± 0.15

± 0.16

± 0.100

± 0.110

± 0.120

1. Around cold-rolled welds - the pickling welds - an increase of 20% at the most over the thickness
   is allowed over a length of 15 metres.
2. For special tolerances, not all combinations of thickness and width are available in every product.
   Please contact us for more details.

 

Tolerances on thickness for steel grades with a specified minimum yield strength 
260 N/mm2 ≤ Re < 340N/mm2.

Nominal
thickness

Normal tolerances for a nominal width of 1

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

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.04

± 0.05

± 0.06

± 0.025

± 0.030

± 0.035

> 0.40

≤ 0.60

± 0.04

± 0.05

± 0.06

± 0.030

± 0.035

± 0.040

> 0.60

≤ 0.80

± 0.05

± 0.06

± 0.07

± 0.035

± 0.040

± 0.050

> 0.80

≤ 1.00

± 0.06

± 0.07

± 0.08

± 0.040

± 0.050

± 0.060

> 1.00

≤ 1.20

± 0.07

± 0.08

± 0.10

± 0.050

± 0.060

± 0.070

> 1.20

≤ 1.60

± 0.09

± 0.11

± 0.12

± 0.060

± 0.070

± 0.080

> 1.60

≤ 2.00

± 0.12

± 0.13

± 0.14

± 0.070

± 0.080

± 0.100

> 2.00

≤ 2.50

± 0.14

± 0.15

± 0.16

± 0.100

± 0.110

± 0.120

> 2.50

≤ 3.00

± 0.17

± 0.18

± 0.18

± 0.120

± 0.130

± 0.140

1. Around cold-rolled welds - the pickling welds - an increase of 20% at the most over the thickness
   is allowed over a length of 15 metres.
2. For special tolerances, not all combinations of thickness and width are available in every product.
   Please contact us for more details.

 

Tolerances on thickness for steel grades with a specified minimum yield strength
340N/mm2 ≤ Re ≤ 420N/mm2.

Nominal
thickness

Normal tolerances for a nominal width of 1

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

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.04

± 0.05

± 0.06

± 0.030

± 0.035

± 0.040

> 0.40

≤ 0.60

± 0.05

± 0.06

± 0.07

± 0.035

± 0.040

± 0.050

> 0.60

≤ 0.80

± 0.06

± 0.07

± 0.08

± 0.040

± 0.050

± 0.060

> 0.80

≤ 1.00

± 0.07

± 0.08

± 0.10

± 0.050

± 0.060

± 0.070

> 1.00

≤ 1.20

± 0.09

± 0.10

± 0.11

± 0.060

± 0.070

± 0.080

> 1.20

≤ 1.60

± 0.11

± 0.12

± 0.14

± 0.070

± 0.080

± 0.100

> 1.60

≤ 2.00

± 0.14

± 0.15

± 0.17

± 0.080

± 0.100

± 0.110

> 2.00

≤ 2.50

± 0.16

± 0.18

± 0.19

± 0.110

± 0.120

± 0.130

> 2.50

≤ 3.00

± 0.20

± 0.20

± 0.21

± 0.130

± 0.140

± 0.150

1. Around cold-rolled welds - the pickling welds - an increase of 20% at the most over the thickness
   is allowed over a length of 15 metres.
2. For special tolerances, not all combinations of thickness and width are available in every product.
   Please contact us for more details.

 

Tolerances on thickness for steel grades with a specified minimum yield strength
Re > 420N/mm2.

Nominal
thickness

Normal tolerances for a nominal width of 1

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

± 0.07

± 0.035

± 0.040

± 0.050

> 0.40

≤ 0.60

± 0.05

± 0.07

± 0.08

± 0.040

± 0.050

± 0.060

> 0.60

≤ 0.80

± 0.06

± 0.08

± 0.10

± 0.050

± 0.060

± 0.070

> 0.80

≤ 1.00

± 0.08

± 0.10

± 0.11

± 0.060

± 0.070

± 0.080

> 1.00

≤ 1.20

± 0.10

± 0.11

± 0.13

± 0.070

± 0.080

± 0.100

> 1.20

≤ 1.60

± 0.13

± 0.14

± 0.16

± 0.080

± 0.100

± 0.110

> 1.60

≤ 2.00

± 0.16

± 0.17

± 0.19

± 0.100

± 0.110

± 0.130

> 2.00

≤ 2.50

± 0.19

± 0.20

± 0.22

± 0.130

± 0.140

± 0.160

> 2.50

≤ 3.00

± 0.22

± 0.23

± 0.24

± 0.160

± 0.170

± 0.180

1. Around cold-rolled welds - the pickling welds - an increase of 20% at the most over the thickness
   is allowed over a length of 15 metres.
2. For special tolerances, not all combinations of thickness and width are available in every product.
   Please contact us for more details.

 

Tolerances on width

Tolerance 
(EN 10131: 2006)

Availability

Normal width tolerances

Available

Special width tolerances

Refer (± 0.50 mm available on 750 - 2000 mm width)

 

Nominal width w

Normal tolerances

Special tolerances (S)

 

Under

Over

Under

Over

w ≤ 1200

0

4

0

2

1200 < w ≤ 1500

0

5

0

2

w > 1500

0

6

0

3

 

Out-of-squareness (products supplied as cut sheets only)

The deviation does not exceed 1% of the actual width of the sheet according to the EN 10131: 2006 standard. The deviation from the edge camber does not exceed 5mm for a length of 2 metres as specified in EN 10131: 2006.

 

Flatness (products supplied as skin-passed cut sheets only)

Flatness complies with EN 10131: 2006
If there is a dispute about the flatness of material that was ordered to the special tolerances shown in table 8 of EN 10131: 2006, then the minimum acceptable standards of flatness described below must be verified.
Criteria in case of disputes over special (FS) flatness tolerances (ReL < 260 N/mm2)

Dimensions in mm.

Nominal width

Edge-wave length

Maximum acceptable wave height

< 1500

> 200

< 1% of edge-wave length

≥ 1500

> 200

< 1.5% of edge-wave length

< 200

 2mm

 

Winding

For winding, there may be a maximum width gap of 3mm between two con­se­cutive windings. The total width stagger across the coil wall will not exceed 10mm.

 

Dimensions and coil weights

Tata Steel can supply cold-rolled steel with the following minimum and maximum dimensions and coil weights.

Description Availability
Coil diameter inner 610mm
(508mm available on request)
Coil diameter outer 10/7 x width max
1000mm min.
2800mm max.
Coil weight 30 t max.
30 - 45 t 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 ≤ 1200mm 11.9 - 21.5 kg/mm width
KIM: 1200mm < width ≤ 1700mm 11.9 - 21 kg/mm width
KIM: width > 1700mm 10.3 kg/mm width and 11.9 - 21 kg/mm width
Minimum tonnage per order Refer to price list for order quantity details
Minimum order quantities may apply

 

 

Coil welds

For batch-annealed coils, in general, pickling line welds are included. The number of permissible recoiling line welds is determined in consultation with the customer. If welds are permitted, Tata Steel is better able to implement the best coil weight. A recoiling line weld is marked with a single hole in the centre of the strip, close to the weld. On request the identifying hole can be left out. Coils with welds are available on continuously-annealed products – please contact us for details. You can find details on how to get in touch with us in 'Contact Us' below.

 

EN-EngineeringAutomotive-Product-Cold-rolled-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-Cold-rolled-AHSS UHSS-DP1000

DP1000
Specification details for DP1000

EN-Engineering-Product-Cold-rolled-AHSS-All Grades Overview

Overview

Grades

Dual phase grades

Cold-rolled dual phase steels allow you to increase the strength of the finished component or reduce the thickness of the steel - or both. By increasing product performance and helping reduce weight, these steels support you to achieve your optimum performance parameters. The use of dual phase grades increases the output from each tonne of steel and produces products that are strong, light and safe under load. High strain-hardening capacity ensures our dual phase steels have good formability.

Hot forming steel - HQ1500 CR

Our HQ1500 CR product is an uncoated, ultra high-strength hot forming steel. It combines a strength level of 1500 N/mm2 with excellent shape accuracy. Compared with conventional high-strength, low-alloy grades, HQ1500 CR offers real opportunities for weight reduction through down-gauging. It also ensures good repeatability in long production runs when compared with cold press forming.

 

Applications

  • Automotive body-in-white
  • Precision tubes

 

Relationship with standards

Tata Steel can supply the following cold-rolled advanced and ultra high-strength steel grades: 

Tata Steel

EN 10338: 2015

EN 10083: 2009

DP600

HCT590X

 

DP800

HCT780X

 

DP1000

HCT980X

 

HQ1500 CR

 

20MnB5 1

1. This grade is also widely known as 22MnB5.

 

EN-EngineeringAutomotive-Product-Cold-rolled-All Grades Surface aspects

Surface aspects

Surface quality

 

Surface quality A

Defects that do not influence the formability or the application of surface coatings are permitted. They are defects such as pores, minor scratches, slight indentations, small grooves or slight discolouration. 

Surface quality B

The better side must be free of defects that can spoil the uniform appearance of a high-quality paint or of an electrolytic coating. The other side must at least conform to surface quality A. Not all combinations of thickness and width are available in surface quality B. Please contact us for details. 

Inspected side

As a rule, the upper side of the strip is inspected; on request, the strip can be wound so that the inspected side is the underside.

 

Surface texture/roughness

Cold-rolled annealed and skin-passed steel is available in several surface textures. Unless specified otherwise, Tata Steel will supply normal roughness. The table below shows the range of surface textures according to EN 10130:2006.

 

 

Roughness Ra
(µm)

EN 10130: 2006 Grade

Symbol

cut off 0.8 mm

extra-bright 1

-

≤ 0.3

bright

b

≤ 0.4

semi-bright

g

≤ 0.9

normal

m

0.6 - 1.9

rough

r

> 1.6

extra rough 1

-

3.5 - 5

1. Not in EN 10130:2006 - Tata Steel’s own specification, measured with a cut off of 2.5 mm.
Other surface textures are available to meet your requirements - please contact us for details

 

Preservative oil

The standard oil applied by Tata Steel acts as a protective coating. Other types of oil may be available to meet your requirement.
Tata Steel offers a range of oiling levels from 0.25 - 1.7 g/m2 per side.
Other oiling levels are available on request. Tata Steel is not responsible for the risk of corrosion during storage or shipment if material is ordered in the un-oiled condition.

 

Surface cleanliness

Tata Steel can guarantee improved surface cleanliness on request for batch-annealed products. The cleanliness is tested with a tape test, in which the loss of reflection is measured. The reflection gives an indication of the oil residue on the annealed product. Two levels of loss of reflectivity are available for batch annealed products: a maximum of 20% or a maximum of 30%. Continuously-annealed products typically exhibit a loss of reflection up to around 10%.

 

 

EN-Engineering-Product-Cold-rolled-AHSS-DP1000-Properties

Properties

Properties


Mechanical properties

The values shown for the mechanical properties in the table below are for test pieces taken parallel to the rolling direction.

  Grade DP1000
Yield strength1 Rp0.2 N/mm² 600 - 750
Tensile strength Rm N/mm² 980
Elongation % 10
Min. n-value (10% - Ag)   -
Min. BH2 N/mm² 30
 
 
 
 
1. Yield strength refers to the 0.2% proof strength for the product.
Elongation after fraction A uses test piece length L0 = 80 mm.
 

Chemical composition

The table below shows the chemical composition to the draft EN 10338: 2015 (for dual phase steel) and EN 10083-3: 2006 (for hot forming steel) specifications.

  Grade DP1000
C Max. 0.23
Mn Max. 3.00
P Max. 0.080
S Max. 0.015
Si Max. 0.80
Altot   ≤ 2.00
Cr + Mo Max. 1.00
Nb + Ti Max. 0.15
V Max. 0.20
B Max. 0.005
All values are in weight%.

EN-Automotive-Product-Cold-rolled-AHSS-DP1000-Dimensions

Dimensions

Dimensional capability - Continuously annealed (CA)

Order volumes may apply to some dimensions - please contact us for details.

Dimensions in mm.

Thickness Max. width
From - up to DP1000
0.80 - 0.95 1240
0.95 - 1.00 1250
1.00 - 1.30 1360
1.30 - 1.40 1370
1.40 - 1.60 1390
1.60 - 1.70 1420
1.70 - 1.80 1430
1.80 - 1.90 1445
1.90 - 1.95 1460
1.95 - 2.00 1475
Minimum width is 900 mm.
Please contact us for latest availability.
 

Tolerances

Tolerances on shape and dimensions comply with standard EN 10131: 2006
Tighter tolerances are available, please contact us for details.

EN-EngineeringAutomotive-Product-Cold-rolled-All Grades Shape and Dimensional Tolerances

Shape and dimensional tolerances

Tolerances on shape and dimensions comply with standard EN 10131: 2006

 

Tolerances on thickness

Tolerance (EN 10131: 2006)

Availability

Full thickness tolerance

Available

Special thickness tolerances

Available

50% of full thickness tolerance

Refer before ordering

Tolerances closer than special tolerances may be agreed at the time of enquiry.
Tolerances in mm.

 

Tolerances on thickness for steel grades with a specified minimum yield strength
Re < 260N/mm2.

Nominal
thickness

Normal tolerances for a nominal width of 1

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

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.03

± 0.04

± 0.05

± 0.020

± 0.025

± 0.030

> 0.40

≤ 0.60

± 0.03

± 0.04

± 0.05

± 0.025

± 0.030

± 0.035

> 0.60

≤ 0.80

± 0.04

± 0.05

± 0.06

± 0.030

± 0.035

± 0.040

> 0.80

≤ 1.00

± 0.05

± 0.06

± 0.07

± 0.035

± 0.040

± 0.050

> 1.00

≤ 1.20

± 0.06

± 0.07

± 0.08

± 0.040

± 0.050

± 0.060

> 1.20

≤ 1.60

± 0.08

± 0.09

± 0.10

± 0.050

± 0.060

± 0.070

> 1.60

≤ 2.00

± 0.10

± 0.11

± 0.12

± 0.060

± 0.070

± 0.080

> 2.00

≤ 2.50

± 0.12

± 0.13

± 0.14

± 0.080

± 0.090

± 0.100

> 2.50

≤ 3.00

± 0.15

± 0.15

± 0.16

± 0.100

± 0.110

± 0.120

1. Around cold-rolled welds - the pickling welds - an increase of 20% at the most over the thickness
   is allowed over a length of 15 metres.
2. For special tolerances, not all combinations of thickness and width are available in every product.
   Please contact us for more details.

 

Tolerances on thickness for steel grades with a specified minimum yield strength 
260 N/mm2 ≤ Re < 340N/mm2.

Nominal
thickness

Normal tolerances for a nominal width of 1

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

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.04

± 0.05

± 0.06

± 0.025

± 0.030

± 0.035

> 0.40

≤ 0.60

± 0.04

± 0.05

± 0.06

± 0.030

± 0.035

± 0.040

> 0.60

≤ 0.80

± 0.05

± 0.06

± 0.07

± 0.035

± 0.040

± 0.050

> 0.80

≤ 1.00

± 0.06

± 0.07

± 0.08

± 0.040

± 0.050

± 0.060

> 1.00

≤ 1.20

± 0.07

± 0.08

± 0.10

± 0.050

± 0.060

± 0.070

> 1.20

≤ 1.60

± 0.09

± 0.11

± 0.12

± 0.060

± 0.070

± 0.080

> 1.60

≤ 2.00

± 0.12

± 0.13

± 0.14

± 0.070

± 0.080

± 0.100

> 2.00

≤ 2.50

± 0.14

± 0.15

± 0.16

± 0.100

± 0.110

± 0.120

> 2.50

≤ 3.00

± 0.17

± 0.18

± 0.18

± 0.120

± 0.130

± 0.140

1. Around cold-rolled welds - the pickling welds - an increase of 20% at the most over the thickness
   is allowed over a length of 15 metres.
2. For special tolerances, not all combinations of thickness and width are available in every product.
   Please contact us for more details.

 

Tolerances on thickness for steel grades with a specified minimum yield strength
340N/mm2 ≤ Re ≤ 420N/mm2.

Nominal
thickness

Normal tolerances for a nominal width of 1

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

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.04

± 0.05

± 0.06

± 0.030

± 0.035

± 0.040

> 0.40

≤ 0.60

± 0.05

± 0.06

± 0.07

± 0.035

± 0.040

± 0.050

> 0.60

≤ 0.80

± 0.06

± 0.07

± 0.08

± 0.040

± 0.050

± 0.060

> 0.80

≤ 1.00

± 0.07

± 0.08

± 0.10

± 0.050

± 0.060

± 0.070

> 1.00

≤ 1.20

± 0.09

± 0.10

± 0.11

± 0.060

± 0.070

± 0.080

> 1.20

≤ 1.60

± 0.11

± 0.12

± 0.14

± 0.070

± 0.080

± 0.100

> 1.60

≤ 2.00

± 0.14

± 0.15

± 0.17

± 0.080

± 0.100

± 0.110

> 2.00

≤ 2.50

± 0.16

± 0.18

± 0.19

± 0.110

± 0.120

± 0.130

> 2.50

≤ 3.00

± 0.20

± 0.20

± 0.21

± 0.130

± 0.140

± 0.150

1. Around cold-rolled welds - the pickling welds - an increase of 20% at the most over the thickness
   is allowed over a length of 15 metres.
2. For special tolerances, not all combinations of thickness and width are available in every product.
   Please contact us for more details.

 

Tolerances on thickness for steel grades with a specified minimum yield strength
Re > 420N/mm2.

Nominal
thickness

Normal tolerances for a nominal width of 1

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

± 0.07

± 0.035

± 0.040

± 0.050

> 0.40

≤ 0.60

± 0.05

± 0.07

± 0.08

± 0.040

± 0.050

± 0.060

> 0.60

≤ 0.80

± 0.06

± 0.08

± 0.10

± 0.050

± 0.060

± 0.070

> 0.80

≤ 1.00

± 0.08

± 0.10

± 0.11

± 0.060

± 0.070

± 0.080

> 1.00

≤ 1.20

± 0.10

± 0.11

± 0.13

± 0.070

± 0.080

± 0.100

> 1.20

≤ 1.60

± 0.13

± 0.14

± 0.16

± 0.080

± 0.100

± 0.110

> 1.60

≤ 2.00

± 0.16

± 0.17

± 0.19

± 0.100

± 0.110

± 0.130

> 2.00

≤ 2.50

± 0.19

± 0.20

± 0.22

± 0.130

± 0.140

± 0.160

> 2.50

≤ 3.00

± 0.22

± 0.23

± 0.24

± 0.160

± 0.170

± 0.180

1. Around cold-rolled welds - the pickling welds - an increase of 20% at the most over the thickness
   is allowed over a length of 15 metres.
2. For special tolerances, not all combinations of thickness and width are available in every product.
   Please contact us for more details.

 

Tolerances on width

Tolerance 
(EN 10131: 2006)

Availability

Normal width tolerances

Available

Special width tolerances

Refer (± 0.50 mm available on 750 - 2000 mm width)

 

Nominal width w

Normal tolerances

Special tolerances (S)

 

Under

Over

Under

Over

w ≤ 1200

0

4

0

2

1200 < w ≤ 1500

0

5

0

2

w > 1500

0

6

0

3

 

Out-of-squareness (products supplied as cut sheets only)

The deviation does not exceed 1% of the actual width of the sheet according to the EN 10131: 2006 standard. The deviation from the edge camber does not exceed 5mm for a length of 2 metres as specified in EN 10131: 2006.

 

Flatness (products supplied as skin-passed cut sheets only)

Flatness complies with EN 10131: 2006
If there is a dispute about the flatness of material that was ordered to the special tolerances shown in table 8 of EN 10131: 2006, then the minimum acceptable standards of flatness described below must be verified.
Criteria in case of disputes over special (FS) flatness tolerances (ReL < 260 N/mm2)

Dimensions in mm.

Nominal width

Edge-wave length

Maximum acceptable wave height

< 1500

> 200

< 1% of edge-wave length

≥ 1500

> 200

< 1.5% of edge-wave length

< 200

 2mm

 

Winding

For winding, there may be a maximum width gap of 3mm between two con­se­cutive windings. The total width stagger across the coil wall will not exceed 10mm.

 

Dimensions and coil weights

Tata Steel can supply cold-rolled steel with the following minimum and maximum dimensions and coil weights.

Description Availability
Coil diameter inner 610mm
(508mm available on request)
Coil diameter outer 10/7 x width max
1000mm min.
2800mm max.
Coil weight 30 t max.
30 - 45 t 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 ≤ 1200mm 11.9 - 21.5 kg/mm width
KIM: 1200mm < width ≤ 1700mm 11.9 - 21 kg/mm width
KIM: width > 1700mm 10.3 kg/mm width and 11.9 - 21 kg/mm width
Minimum tonnage per order Refer to price list for order quantity details
Minimum order quantities may apply

 

 

Coil welds

For batch-annealed coils, in general, pickling line welds are included. The number of permissible recoiling line welds is determined in consultation with the customer. If welds are permitted, Tata Steel is better able to implement the best coil weight. A recoiling line weld is marked with a single hole in the centre of the strip, close to the weld. On request the identifying hole can be left out. Coils with welds are available on continuously-annealed products – please contact us for details. You can find details on how to get in touch with us in 'Contact Us' below.

 

EN-EngineeringAutomotive-Product-Cold-rolled-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-Cold-rolled-AHSS UHSS-CR 22MnB5

CR 22MnB5
Specification details for CR 22MnB5

EN-Engineering-Product-Cold-rolled-AHSS-All Grades Overview

Overview

Grades

Dual phase grades

Cold-rolled dual phase steels allow you to increase the strength of the finished component or reduce the thickness of the steel - or both. By increasing product performance and helping reduce weight, these steels support you to achieve your optimum performance parameters. The use of dual phase grades increases the output from each tonne of steel and produces products that are strong, light and safe under load. High strain-hardening capacity ensures our dual phase steels have good formability.

Hot forming steel - HQ1500 CR

Our HQ1500 CR product is an uncoated, ultra high-strength hot forming steel. It combines a strength level of 1500 N/mm2 with excellent shape accuracy. Compared with conventional high-strength, low-alloy grades, HQ1500 CR offers real opportunities for weight reduction through down-gauging. It also ensures good repeatability in long production runs when compared with cold press forming.

 

Applications

  • Automotive body-in-white
  • Precision tubes

 

Relationship with standards

Tata Steel can supply the following cold-rolled advanced and ultra high-strength steel grades: 

Tata Steel

EN 10338: 2015

EN 10083: 2009

DP600

HCT590X

 

DP800

HCT780X

 

DP1000

HCT980X

 

HQ1500 CR

 

20MnB5 1

1. This grade is also widely known as 22MnB5.

 

EN-EngineeringAutomotive-Product-Cold-rolled-All Grades Surface aspects

Surface aspects

Surface quality

 

Surface quality A

Defects that do not influence the formability or the application of surface coatings are permitted. They are defects such as pores, minor scratches, slight indentations, small grooves or slight discolouration. 

Surface quality B

The better side must be free of defects that can spoil the uniform appearance of a high-quality paint or of an electrolytic coating. The other side must at least conform to surface quality A. Not all combinations of thickness and width are available in surface quality B. Please contact us for details. 

Inspected side

As a rule, the upper side of the strip is inspected; on request, the strip can be wound so that the inspected side is the underside.

 

Surface texture/roughness

Cold-rolled annealed and skin-passed steel is available in several surface textures. Unless specified otherwise, Tata Steel will supply normal roughness. The table below shows the range of surface textures according to EN 10130:2006.

 

 

Roughness Ra
(µm)

EN 10130: 2006 Grade

Symbol

cut off 0.8 mm

extra-bright 1

-

≤ 0.3

bright

b

≤ 0.4

semi-bright

g

≤ 0.9

normal

m

0.6 - 1.9

rough

r

> 1.6

extra rough 1

-

3.5 - 5

1. Not in EN 10130:2006 - Tata Steel’s own specification, measured with a cut off of 2.5 mm.
Other surface textures are available to meet your requirements - please contact us for details

 

Preservative oil

The standard oil applied by Tata Steel acts as a protective coating. Other types of oil may be available to meet your requirement.
Tata Steel offers a range of oiling levels from 0.25 - 1.7 g/m2 per side.
Other oiling levels are available on request. Tata Steel is not responsible for the risk of corrosion during storage or shipment if material is ordered in the un-oiled condition.

 

Surface cleanliness

Tata Steel can guarantee improved surface cleanliness on request for batch-annealed products. The cleanliness is tested with a tape test, in which the loss of reflection is measured. The reflection gives an indication of the oil residue on the annealed product. Two levels of loss of reflectivity are available for batch annealed products: a maximum of 20% or a maximum of 30%. Continuously-annealed products typically exhibit a loss of reflection up to around 10%.

 

 

EN-Automotive-Product-Cold-rolled-AHSS-CR 22MnB5-Properties

Properties

Properties


Mechanical properties

The values shown for the mechanical properties in the table below are for test pieces taken parallel to the rolling direction.

As delivered Grade CR 22MnB5
Guaranteed
CR 22MnB5
Typical
Yield strength1 Rp0.2 N/mm² ≥ 300 340 - 440
Tensile strength Rm N/mm² 500 - 580 500 - 580
Elongation % ≥ 20 > 21
r-value   - 0.90 - 1.0
n-value   - > 0.150
 
 
 
 

 

Hot formed Grade CR 22MnB5
Guaranteed
CR 22MnB5
Typical
Yield strength 1 Rp0.2 N/mm² 1000 - 1250 1025 - 1100
Tensile strength Rm N/mm² 1300 - 1600 1420 - 1520
Elongation % ≥ 5 5 - 7  
1. Yield strength refers to the 0.2% proof strength for the product.
Elongation after fraction A uses test piece length L0 = 80 mm.
 

Chemical composition

The table below shows the chemical composition to the draft EN 10338: 2015 (for dual phase steel) and EN 10083-3: 2006 (for hot forming steel) specifications.

    CR 22MnB5
Guaranteed
CR 22MnB5
Typical
  Grade
C Max. 0.23 0.22
Mn Max. 1.3 1.2
P Max. 0.02 0.01
S Max. 0.010 0.005
Si Max. 0.3 0.24
Altot   0.02 - 0.06 0.04
Cr + Mo 1 Max. 0.3 0.2
Nb + Ti 2 Max. 0.04 0.03
V Max. - -
B Max. 0.005 0.003
1. Refers to Cr max for CR 22MnB5.
2. Refers to Ti max for CR 22MnB5
All values are in weight%.

EN-Automotive-Product-Cold-rolled-AHSS-CR 22MnB5-Dimensions

Dimensions

Dimensional capability - Continuously annealed (CA)

Order volumes may apply to some dimensions - please contact us for details.

Dimensions in mm.

Thickness Max. width
From - up to CR 22MnB5
0.90 - 1.20 1180
1.20 - 1.40 1230
1.40 - 1.60 1310
1.60 - 1.80 1360
1.80 - 2.00 1380
Minimum width is 900 mm.
Please contact us for latest availability.
 

Tolerances

Tolerances on shape and dimensions comply with standard EN 10131: 2006
Tighter tolerances are available, please contact us for details.

EN-EngineeringAutomotive-Product-Cold-rolled-All Grades Shape and Dimensional Tolerances

Shape and dimensional tolerances

Tolerances on shape and dimensions comply with standard EN 10131: 2006

 

Tolerances on thickness

Tolerance (EN 10131: 2006)

Availability

Full thickness tolerance

Available

Special thickness tolerances

Available

50% of full thickness tolerance

Refer before ordering

Tolerances closer than special tolerances may be agreed at the time of enquiry.
Tolerances in mm.

 

Tolerances on thickness for steel grades with a specified minimum yield strength
Re < 260N/mm2.

Nominal
thickness

Normal tolerances for a nominal width of 1

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

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.03

± 0.04

± 0.05

± 0.020

± 0.025

± 0.030

> 0.40

≤ 0.60

± 0.03

± 0.04

± 0.05

± 0.025

± 0.030

± 0.035

> 0.60

≤ 0.80

± 0.04

± 0.05

± 0.06

± 0.030

± 0.035

± 0.040

> 0.80

≤ 1.00

± 0.05

± 0.06

± 0.07

± 0.035

± 0.040

± 0.050

> 1.00

≤ 1.20

± 0.06

± 0.07

± 0.08

± 0.040

± 0.050

± 0.060

> 1.20

≤ 1.60

± 0.08

± 0.09

± 0.10

± 0.050

± 0.060

± 0.070

> 1.60

≤ 2.00

± 0.10

± 0.11

± 0.12

± 0.060

± 0.070

± 0.080

> 2.00

≤ 2.50

± 0.12

± 0.13

± 0.14

± 0.080

± 0.090

± 0.100

> 2.50

≤ 3.00

± 0.15

± 0.15

± 0.16

± 0.100

± 0.110

± 0.120

1. Around cold-rolled welds - the pickling welds - an increase of 20% at the most over the thickness
   is allowed over a length of 15 metres.
2. For special tolerances, not all combinations of thickness and width are available in every product.
   Please contact us for more details.

 

Tolerances on thickness for steel grades with a specified minimum yield strength 
260 N/mm2 ≤ Re < 340N/mm2.

Nominal
thickness

Normal tolerances for a nominal width of 1

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

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.04

± 0.05

± 0.06

± 0.025

± 0.030

± 0.035

> 0.40

≤ 0.60

± 0.04

± 0.05

± 0.06

± 0.030

± 0.035

± 0.040

> 0.60

≤ 0.80

± 0.05

± 0.06

± 0.07

± 0.035

± 0.040

± 0.050

> 0.80

≤ 1.00

± 0.06

± 0.07

± 0.08

± 0.040

± 0.050

± 0.060

> 1.00

≤ 1.20

± 0.07

± 0.08

± 0.10

± 0.050

± 0.060

± 0.070

> 1.20

≤ 1.60

± 0.09

± 0.11

± 0.12

± 0.060

± 0.070

± 0.080

> 1.60

≤ 2.00

± 0.12

± 0.13

± 0.14

± 0.070

± 0.080

± 0.100

> 2.00

≤ 2.50

± 0.14

± 0.15

± 0.16

± 0.100

± 0.110

± 0.120

> 2.50

≤ 3.00

± 0.17

± 0.18

± 0.18

± 0.120

± 0.130

± 0.140

1. Around cold-rolled welds - the pickling welds - an increase of 20% at the most over the thickness
   is allowed over a length of 15 metres.
2. For special tolerances, not all combinations of thickness and width are available in every product.
   Please contact us for more details.

 

Tolerances on thickness for steel grades with a specified minimum yield strength
340N/mm2 ≤ Re ≤ 420N/mm2.

Nominal
thickness

Normal tolerances for a nominal width of 1

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

 

≤ 1200

> 1200

> 1500

≤ 1200

> 1200

> 1500

 

≤ 1500

 

 

≤ 1500

 

≥ 0.35

≤ 0.40

± 0.04

± 0.05

± 0.06

± 0.030

± 0.035

± 0.040

> 0.40

≤ 0.60

± 0.05

± 0.06

± 0.07

± 0.035

± 0.040

± 0.050

> 0.60

≤ 0.80

± 0.06

± 0.07

± 0.08

± 0.040

± 0.050

± 0.060

> 0.80

≤ 1.00

± 0.07

± 0.08

± 0.10

± 0.050

± 0.060

± 0.070

> 1.00

≤ 1.20

± 0.09

± 0.10

± 0.11

± 0.060

± 0.070

± 0.080

> 1.20

≤ 1.60

± 0.11

± 0.12

± 0.14

± 0.070

± 0.080

± 0.100

> 1.60

≤ 2.00

± 0.14

± 0.15

± 0.17

± 0.080

± 0.100

± 0.110

> 2.00

≤ 2.50

± 0.16

± 0.18

± 0.19

± 0.110

± 0.120

± 0.130

> 2.50

≤ 3.00

± 0.20

± 0.20

± 0.21

± 0.130

± 0.140

± 0.150

1. Around cold-rolled welds - the pickling welds - an increase of 20% at the most over the thickness
   is allowed over a length of 15 metres.
2. For special tolerances, not all combinations of thickness and width are available in every product.
   Please contact us for more details.

 

Tolerances on thickness for steel grades with a specified minimum yield strength
Re > 420N/mm2.

Nominal
thickness

Normal tolerances for a nominal width of 1

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

± 0.07

± 0.035

± 0.040

± 0.050

> 0.40

≤ 0.60

± 0.05

± 0.07

± 0.08

± 0.040

± 0.050

± 0.060

> 0.60

≤ 0.80

± 0.06

± 0.08

± 0.10

± 0.050

± 0.060

± 0.070

> 0.80

≤ 1.00

± 0.08

± 0.10

± 0.11

± 0.060

± 0.070

± 0.080

> 1.00

≤ 1.20

± 0.10

± 0.11

± 0.13

± 0.070

± 0.080

± 0.100

> 1.20

≤ 1.60

± 0.13

± 0.14

± 0.16

± 0.080

± 0.100

± 0.110

> 1.60

≤ 2.00

± 0.16

± 0.17

± 0.19

± 0.100

± 0.110

± 0.130

> 2.00

≤ 2.50

± 0.19

± 0.20

± 0.22

± 0.130

± 0.140

± 0.160

> 2.50

≤ 3.00

± 0.22

± 0.23

± 0.24

± 0.160

± 0.170

± 0.180

1. Around cold-rolled welds - the pickling welds - an increase of 20% at the most over the thickness
   is allowed over a length of 15 metres.
2. For special tolerances, not all combinations of thickness and width are available in every product.
   Please contact us for more details.

 

Tolerances on width

Tolerance 
(EN 10131: 2006)

Availability

Normal width tolerances

Available

Special width tolerances

Refer (± 0.50 mm available on 750 - 2000 mm width)

 

Nominal width w

Normal tolerances

Special tolerances (S)

 

Under

Over

Under

Over

w ≤ 1200

0

4

0

2

1200 < w ≤ 1500

0

5

0

2

w > 1500

0

6

0

3

 

Out-of-squareness (products supplied as cut sheets only)

The deviation does not exceed 1% of the actual width of the sheet according to the EN 10131: 2006 standard. The deviation from the edge camber does not exceed 5mm for a length of 2 metres as specified in EN 10131: 2006.

 

Flatness (products supplied as skin-passed cut sheets only)

Flatness complies with EN 10131: 2006
If there is a dispute about the flatness of material that was ordered to the special tolerances shown in table 8 of EN 10131: 2006, then the minimum acceptable standards of flatness described below must be verified.
Criteria in case of disputes over special (FS) flatness tolerances (ReL < 260 N/mm2)

Dimensions in mm.

Nominal width

Edge-wave length

Maximum acceptable wave height

< 1500

> 200

< 1% of edge-wave length

≥ 1500

> 200

< 1.5% of edge-wave length

< 200

 2mm

 

Winding

For winding, there may be a maximum width gap of 3mm between two con­se­cutive windings. The total width stagger across the coil wall will not exceed 10mm.

 

Dimensions and coil weights

Tata Steel can supply cold-rolled steel with the following minimum and maximum dimensions and coil weights.

Description Availability
Coil diameter inner 610mm
(508mm available on request)
Coil diameter outer 10/7 x width max
1000mm min.
2800mm max.
Coil weight 30 t max.
30 - 45 t 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 ≤ 1200mm 11.9 - 21.5 kg/mm width
KIM: 1200mm < width ≤ 1700mm 11.9 - 21 kg/mm width
KIM: width > 1700mm 10.3 kg/mm width and 11.9 - 21 kg/mm width
Minimum tonnage per order Refer to price list for order quantity details
Minimum order quantities may apply

 

 

Coil welds

For batch-annealed coils, in general, pickling line welds are included. The number of permissible recoiling line welds is determined in consultation with the customer. If welds are permitted, Tata Steel is better able to implement the best coil weight. A recoiling line weld is marked with a single hole in the centre of the strip, close to the weld. On request the identifying hole can be left out. Coils with welds are available on continuously-annealed products – please contact us for details. You can find details on how to get in touch with us in 'Contact Us' below.

 

EN-EngineeringAutomotive-Product-Cold-rolled-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.