Cold Rolled Steel

Cold-rolled steel sheet is a metal sheet that is cold-rolled to hot-rolled billets at room temperature to improve surface quality,dimensional accuracy and mechanical properties. It is commonly used in automobiles,home appliances and construction.

DPC290Y490T dual-phase steel coils

Advanced High Strengh Cold Rolled Steel

With excellent mechanical and processing properties, it is widely used in automobiles, household appliances, mechanical parts and so on. Its manufacturing process is mainly cold rolling, which can make the surface of steel more smooth, and improve the surface quality including dimensional accuracy of steel.

Grade C Si Mn P S AI Cu Ti+Nb Cr+Mo B
Max % Max % Max % Max % Max % Range % Max % Max % Max % Max %
DPC290Y490T 0.14 0.50 1.8 0.080 0.015 0.01-1.0 0.20 0.15 1.00 0.005
DPC340Y590T 0.15 0.75 2.5 0.080 0.015 0.01-1.5 0.20 0.15 1.40 0.005
DPC420Y780T 0.18 0.80 2.5 0.080 0.015 0.01-2.0 0.20 0.15 1.40 0.005
DPC420Y780T HF 0.18 1.00 2.5 0.080 0.015 0.01-2.0 0.20 0.15 1.40 0.005
DPC550Y980T 0.20 1.00 2.9 0.080 0.015 0.01-2.0 0.20 0.15 1.40 0.005
DPC700Y980T 0.23 1.00 2.9 0.080 0.015 0.01-2.0 0.20 0.15 1.40 0.005
DPC950Y1180T 0.23 0.40 2.9 0.080 0.015 0.01-2.0 – 0.15 1.40 0.005
DPH330Y580T 0.14 1.00 2.2 0.085 0.015 0.015-1.0 0.40 0.15 1.40 0.005

NOTE 1: In addition to requirements shown in the table, %Ni+%Cr+%Mo < 1.5.

NOTE 2: All DP grades with C% <0.015 must have a minimum of 0.0003% (3 ppm) Boron.

NOTE 4: Ceq. max. 0.86 – Ceq. = C+(Mn+Si)/6.

NOTE 5: Si + Al max. 2.0.

Dual Phase CR Grade YS Range (MPa) TS (MPa) min A50 % min A80 % min n4-6% min n10%-UE min BH2 min
DPC290Y490T 290-380 490 26 24 0.19 0.15 30
DPC340Y590T 340-440 590 21 20 0.18 0.14 30
DPC420Y780T 420-550 780 15 14 0.15
0.12(1) 		0.11 30
DPC420Y780T HF(2) 420-560 780 18 17 0.17 0.14 30
DPC550Y980T 550-730 980 9 8 0.08 N/A 30
DPC700Y980T 700-850 980 8 7 N/A N/A 30
DPC950Y1180T 830-1130 1180 5 4 N/A N/A 30

NOTE 1: Valid only for NA production.

NOTE 2: High Formability quality of DP780 grade.

Dual Phase CR Grade YS Range (MPa) TS (MPa) min A50 % min A80 % min n4-6% min n10%-UE min BH2 min
DPH330Y580T 330-450 580 21 19 0.16 0.13 30