EN-Product-Cold-rolled-HSS-All Grades OverviewTSUK
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. Micro alloyed grades are suited to pressed or stamped parts that require high strength and good formability eg. in seating or body in white structural parts.
Tata Steel supplies high-strength micro-alloyed (HSLA) steel which complies with European standard EN 10268:2006+A1:2013 and to VDA 239-100.
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.
Carbon manganese grades
Our carbon manganese product combines high strength with excellent formability for the most difficult cold forming applications.
Rephosphorised grades
Produced in the Netherlands. For further information click here.
Applications
Automotive components.
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) | VDA (L) |
---|---|---|
Grade | Grade | Grade |
HC210LA1 | - | CR210LA |
HC260LA | H240LA | CR240LA |
HC300LA | H280LA | CR270LA |
HC340LA | H320LA | CR300LA |
HC380LA | H360LA | CR340LA |
HC420LA | H400LA | CR380LA |
HC460LA | H460LA | CR420LA |
1 Not in EN 10268:2006+A1:2013 (T)
L = longitudinal test direction, T= transverse test direction
Test direction can be specified
Bake hardening grades
EN 10268:2006+A1:2013 | VDA 239-100 |
---|---|
HC220B | CR210BH |
Rephosphorised grades
Tata Steel | VDA | SEW 094 |
---|---|---|
Grade | Grade | Grade |
P220 | - | ZSt E220P |
P260 | - | ZSt E260P |
Produced in the Netherlands. For further information click here.
Carbon manganese grades
Tata Steel | VDA |
---|---|
Grade | Grade |
HC300CM | - |
The carbon manganese product is supplied to Tata Steel’s own standard.
EN-Product-Cold-rolled-All Grades Surface aspectsTSUK
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-Product-Cold-rolled-HSS-RADECOL 0-PropertiesTSUK
Properties
Mechanical properties
The available grades have the following mechanical properties - these are measured perpendicular to the rolling direction (transverse test pieces):
RADECOL grades
Tata Steel | Grade | RADECOL 0 |
---|---|---|
Yield strength Rp0,2 1 | N/mm2 | 200 - 290 |
Tensile strength Rm | N/mm2 | 310 - 390 |
Elongation | % | 30 |
1. If the yield strength is pronounced (yield flag), the values apply to the lower yield point (ReL).
Chemical composition
Cold-rolled high-strength steels supplied by Tata Steel comply to the following cast analysis with maximum values unless otherwise shown:
Grade | RADECOL 0 | |
---|---|---|
C | Max. | 0.085 |
Mn | Max. | 0.55 |
Si | Max. | 0 |
P | Max. | 0.03 |
S | Max. | 0.03 |
Alsol | Min. | 0.015 |
All values are in weight%.
EN-Product-Cold-rolled-HSS-RADECOL 0-Dimensions TSUK
Dimensional capability - Continuously annealed (CA)
Dimensions in mm.
Thickness | Max. width |
---|---|
From - up to | RADECOL 0 |
0.37 - 0.5 | 1390 |
0.45 - 0.5 | 1470 |
0.5 - 0.6 | 1550 |
0.6 - 0.65 | 1600 |
0.65 - 0.75 | 1710 |
0.75 - 1.60 | 1820 |
1.60 - 1.70 | 1750 |
1.70 - 1.80 | 1650 |
1.80 - 1.90 | 1525 |
1.90 - 2.00 | 1500 |
Please contact us for dimensions beyond those shown in the table above
Tolerances
Tolerances comply with standard EN 10131: 2006.
Tighter tolerances are available, please contact us for details.
EN-Product-Cold-rolled-All grades Further processingTSUK
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.