Cold-rolled

High-strength steel

Tata Steel offers a range of cold-rolled steels for applications requiring high strength without the weight penalty. The range comprises micro-alloyed, rephosphorised and carbon manganese high-strength steels in cold-rolled uncoated condition. These steels are ideal for strong, thin-gauge products.

Cold-rolled coil
Product specification
High-strength steel is currently available in the following grades

EN-Engineering-Product-Cold-rolled-HSS-HC260LA TSE

HC260LA
Specification details for HC260LA

EN-Engineering-Product-Cold-rolled-HSS-All Grades OverviewTSE

Overview

Grades

Micro-alloyed grades

Micro-alloyed grades have high-strength levels through precipitation and grain refinement hardening. Careful use of alloying elements ensures high mechanical resistance and good weldability. There is limited scope for cold forming.

Tata Steel supplies high-strength micro-alloyed (HSLA) steel which complies with European standard EN 10268:2006+A1:2013.

Bake-hardening grades

Bake-hardening steel gains extra strength after going through an automotive paint oven. The benefit of this is a product with relatively good formability, combined with a higher strength final part.

Rephosphorised grades

These grades deliver high mechanical resistance and good suitability for cold forming due to solid solution hardening by phosphorus. Our rephosphorised grades are highly suited to the manufacture of car body panels and structural components because of their good resistance to impact and fatigue.

Carbon manganese grades                                                                             

Our carbon manganese product combines high strength with excellent formability for the most difficult cold-forming applications.

Applications

  • Automotive components
  • Construction components
  • Furniture
  • Precision tubes
  • Steel panel radiators

 

Relationship with standards

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

Micro-alloyed grades

EN 10268:2006+A1:2013 (T) EN 10268:1998 (L)
Grade Grade
- -
HC260LA H240LA
HC300LA H280LA
HC340LA H320LA
HC380LA H360LA
HC420LA H400LA
HC460LA H460LA

 

Bake-hardening grades

EN 10268:2006+A1:2013 VDA 239-100
HC220B CR210BH

 

Rephosphorised grades

Grade SEW 094 Grade
HC220P ZSt E220P
HC260P ZSt E260P

 

Carbon manganese grades

Grade Grade
HC300CM No EN specified equivalent
The carbon manganese product is supplied to Tata Steel’s own standard. There is no direct EN standard equivalent.

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

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

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 2

-

3.5 - 5

1. Not in EN 10130:2006 - Tata Steel’s own specification. Please contact us regarding the availability
2. 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-HSS-HSLA260-Properties TSE

Properties

Properties


Mechanical properties

The available grades have the following mechanical properties - these are measured perpendicular to the rolling direction (transverse test pieces):
 

Micro-alloyed grades

EN 10268: 2006+A1:2013 Grade HSLA260
Yield strength Rp0,2 1 N/mm2 260 - 330
Tensile strength Rm N/mm2 350 - 430
Elongation 2 % 26
Min. r-value r90 3   -
Min. n-value n90   -
1. If the yield strength is pronounced (yield flag), the values apply to the lower yield point (ReL).
2. When thickness ≤ 0.7mm, the minimum value for elongation is reduced by 2%.
   Elongation after fracture A uses test piece length L0 = 80 mm.
3. For products with thickness > 2mm the minimum r90 is reduced by 0.2.
 

Chemical composition

Cold-rolled high-strength steels supplied by Tata Steel comply to the following cast analysis with maximum values unless otherwise shown:
 

Micro-alloyed grades

EN 10268:2006+A1:2013 Grade HSLA260
C Max. 0.10
Mn Max. 1.0
Si Max. 0.5
P Max. 0.030
S Max. 0.025
Al Min. 0.015
Ti 1 Max. 0.15
Nb 1 Max. 0.09
1. These additional elements may be used individually or in combination where they appear in the definition of the steel within the composition limits indicated. Vanadium and boron may also be added. However, the sum of the contents of these four dispersoidal elements shall not exceed 0.22%.
All values are in weight%.

EN-Engineering-Product-Cold-rolled-HSS-HC260LA-Dimensions TSE

Dimensions

Dimensional capability - Continuously annealed (CA)

Dimensions in mm.

Thickness Max. width
From - up to HC260LA
0.38 - 0.40 1390
0.40 - 0.43 1330
0.43 - 0.50 1390
0.50 - 0.55 1515
0.55 - 0.60 1515
0.60 - 0.70 1600
0.70 - 0.90 1710
0.90 - 1.20 1820
1.20 - 1.70 1750
1.70 - 1.80 1620
1.80 - 2.00 1500
Minimum width is 825 mm.
 

Dimensional capability – Batch annealed (BA)

Dimensions in mm.

Thickness Max. width
From - up to HC260LA
0.40 - 0.50 1590
0.50 - 0.55 1640
0.55 - 0.60 1670
0.60 - 0.65 1700
0.65 - 0.70 1730
0.70 - 0.80 1760
0.80 - 0.90 1810
0.90 - 1.00 1840
1.00 - 1.10 1880
1.10 - 1.20 1920
1.20 - 1.30 1940
1.30 - 1.40 1970
1.40 - 1.50 1990
1.50 - 2.20 2000
2.20 - 2.30 1940
2.30 - 2.40 1880
2.40 - 2.50 1820
2.50 - 2.60 1750
2.60 - 2.70 1690
2.70 - 2.80 1650
2.80 - 2.90 1590
2.90 - 3.00 1530
Minimum width is 900 mm.
Other dimensions are available on request - please contact us.
 

Tolerances

Tolerances 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 TolerancesTSE

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 processingTSE

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 6 m up to 6 m
Locations Netherlands
Germany
France
Spain
Sweden
Norway
Finland
Netherlands
Germany
France
Spain
Sweden
Norway
Finland
Netherlands

 

For further information please visit our Service Centre webpages.
 

 

 

EN-Product-Cold-rolled-HSS-DownloadsTSUK

Download

Download:

EN-Engineering-Product-Cold-rolled-HSS-HC300LA TSE

HC300LA
Specification details for HC300LA

EN-Engineering-Product-Cold-rolled-HSS-All Grades OverviewTSE

Overview

Grades

Micro-alloyed grades

Micro-alloyed grades have high-strength levels through precipitation and grain refinement hardening. Careful use of alloying elements ensures high mechanical resistance and good weldability. There is limited scope for cold forming.

Tata Steel supplies high-strength micro-alloyed (HSLA) steel which complies with European standard EN 10268:2006+A1:2013.

Bake-hardening grades

Bake-hardening steel gains extra strength after going through an automotive paint oven. The benefit of this is a product with relatively good formability, combined with a higher strength final part.

Rephosphorised grades

These grades deliver high mechanical resistance and good suitability for cold forming due to solid solution hardening by phosphorus. Our rephosphorised grades are highly suited to the manufacture of car body panels and structural components because of their good resistance to impact and fatigue.

Carbon manganese grades                                                                             

Our carbon manganese product combines high strength with excellent formability for the most difficult cold-forming applications.

Applications

  • Automotive components
  • Construction components
  • Furniture
  • Precision tubes
  • Steel panel radiators

 

Relationship with standards

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

Micro-alloyed grades

EN 10268:2006+A1:2013 (T) EN 10268:1998 (L)
Grade Grade
- -
HC260LA H240LA
HC300LA H280LA
HC340LA H320LA
HC380LA H360LA
HC420LA H400LA
HC460LA H460LA

 

Bake-hardening grades

EN 10268:2006+A1:2013 VDA 239-100
HC220B CR210BH

 

Rephosphorised grades

Grade SEW 094 Grade
HC220P ZSt E220P
HC260P ZSt E260P

 

Carbon manganese grades

Grade Grade
HC300CM No EN specified equivalent
The carbon manganese product is supplied to Tata Steel’s own standard. There is no direct EN standard equivalent.

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

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

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 2

-

3.5 - 5

1. Not in EN 10130:2006 - Tata Steel’s own specification. Please contact us regarding the availability
2. 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-HSS-HC300LA-Properties TSE

Properties

Properties


Mechanical properties

The available grades have the following mechanical properties - these are measured perpendicular to the rolling direction (transverse test pieces):
 

Micro-alloyed grades

EN 10268: 2006+A1:2013 Grade HC300LA
Yield strength Rp0,2 1 N/mm2 300 - 380
Tensile strength Rm N/mm2 380 - 480
Elongation 2 % 23
Min. r-value r90 3   -
Min. n-value n90   -
1. If the yield strength is pronounced (yield flag), the values apply to the lower yield point (ReL).
2. When thickness ≤ 0.7 mm, the minimum value for elongation is reduced by 2%.
   Elongation after fracture A uses test piece length L0 = 80 mm.
3. For products with thickness > 2 mm the minimum r90 is reduced by 0.2.
 

Chemical composition

Cold-rolled high-strength steels supplied by Tata Steel comply to the following cast analysis with maximum values unless otherwise shown:
 

Micro-alloyed grades

EN 10268:2006+A1:2013 Grade HC300LA
C Max. 0.12
Mn Max. 1.4
Si Max. 0.5
P Max. 0.030
S Max. 0.025
Al Min. 0.015
Ti 1 Max. 0.15
Nb 1 Max. 0.09
1. These additional elements may be used individually or in combination where they appear in the definition of the steel within the composition limits indicated. Vanadium and boron may also be added. However, the sum of the contents of these four dispersoidal elements shall not exceed 0.22%.
All values are in weight%.