Properties

Properties


Mechanical properties

Cold-rolled steel for forming has the following mechanical properties (skin-passed) - these are measured transverse to the rolling direction:

EN 10130: 2006 Grade DC06
Max. yield strength Re 1,2,6 N/mm2 170
Tensile strength Rm N/mm 270 - 330
Elongation 3 % 41
r90-value 4,5   2.1
n90-value 4   0.220
1. The values of the yield strength are those of the 0.2% yield strength for products with no definite yield point and the lower yield strength ReL for the other products.
2. For thicknesses > 0.5 mm and ≤ 0.7 mm, the value for yield strength is increased by 20 N/mm2.
   For thicknesses ≤ 0.5 mm, the value is increased by 40 N/mm2.
3. For thicknesses > 0.5 mm and ≤ 0.7 mm the minimum elongation after fracture is decreased by 2%. For thicknesses ≤ 0.5 mm the minimum elongation after fracture is decreased by 4%.
   Elongation after fracture A uses test piece length L0 =  80 mm.
4. The r- and n- values apply to a thickness of t ≥ 0.5 mm.
5. For a thickness of t > 2 mm, the r90 value or r-average value is decreased by 0.2.
6. For design purposes, a lower yield strength ReL of at least 120 N/mm2 can be assumed.
 

Chemical composition

Cold-rolled steel for forming supplied by Tata Steel comply to the following cast analysis:

EN 10130: 2006 Grade DC06
C Max. 0.02
Mn Max. 0.25
P Max. 0.020
S Max. 0.020
Ti  1 Max. 0.30
1. Titanium may be replaced by niobium. Carbon and nitrogen will be completely bound.
All values are in weight%.