Overview

These steels are ideal for manufacturing strong, thin-gauge products. Our high-strength steels are a popular choice in the automotive industry where they deliver benefits including dent resistance, crash resistance, formability and good weldability.
 

Microalloyed grades

Microalloyed 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 microalloyed (HSLA) steel which complies with ASTM standard A1008: 2013.
 

Rephosphorized grades

Produced in the Netherlands.  For further information click here.

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:

Please contact us for information on our range carbon managenese grades.

RADECOL is supplied to Tata Steel’s own standard. There is no direct ASTM or SAE standard equivalent.
 

Surface aspects

Surface quality according to ASTM A1008: 2013 and ASTM A568: 2011.
 

Surface quality class 1 (exposed):

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 unexposed.
 

Surface quality class 2 (unexposed):

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

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 with ‘Regular matte’ surface texture.

^{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, 37-241 mg/ft² per side.  Please specify your exact requirements in the enquiry.
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 unoiled 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.
Continuously annealed products typically exhibit a loss of reflection up to around 10%.