Suitable for deep drawing and stretch hard cold rolled steel coil such as wall, the oil pan and the floor. Cold rolling is also used to make thinner coils than hot-rolling mills can currently produce (less than 0.8-1.0 mm).

The sample is the P6 sample in GB/T 228 and the sample direction is transverse.
c. The requirement of r90 and n90 values apply only to stretch hard cold rolled steel coils with the thickness not less than 0.50mm. When the the thickness is more than 2.00mm, the value of r90 is allowed to lower 0.2.

Grade	MPa Yield strength	MPa Tensile strength Not less than	Elongation % A80mm not less than	r90°	n90°
mm nominal thickness
<0.30	0.30~<0.50	0.50~<0.70	0.70~<1.0	1.0~<1.6	≧1.6	Not less than
DC07	100~150	250	_	40	42	44	2.5	0.23