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

^1. If the yield strength is pronounced (yield flag), the values apply to the lower yield point (R_eL).
^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

^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%.