With extra-deep drawing quality cold coil steel, and welding performance and relatively high dimensional accuracy, DC05(BSC2) cold-rolled low carbon steel plates have been widely applied to manufacture of various automotive parts.

DC05(BSC2) extra-deep drawing quality cold coil steel chemical composition:

Steel grade	Chemical composition %
C	Mn	p	S	Alta	Ti b
DC05(BSC2)	≤0.008	≤0.30	≤0.020	≤0.020	≥0.015	≤0.20

a: with Nb instead of Ti, but Nb and TI total content ≤0.20

DC05(BSC2) extra-deep drawing quality cold coil steel mechanical performances:

Steel grade	Yield Strength a MPa	Tensile Strength Mpa ≥	After Breakage Percent Elongation (L o =80mm, b=20mm) % ≥	r b,c ≥	n b, c ≥
Nominal Thickness mm
<0.70	0.70~<1.0	1.0~<1.6	≥1.6
DC05(BSC2)	110~190	260	38	39	40	41	1.8	0.20

a. taking R P0.2 in case of indistinct yield, otherwise R eL .
b. r and n for DC05 and DC06, allowable reduction by 0.2 in case of thickness≥1.6mm, no guarantee for r and n in case of thickness ≥2.0mm.
c. r=(r 90 +2r 45 +r 0 )/4; n=(n 90 +2n 45 +n 0 )/4.

DC05(BSC2) cold-rolled low carbon steel surface quality:

Grade	Code No.	Features
Relatively high-grade finishing surface	FB(O3)	It is allowed for the existence of a few surface defects which will not affect forming and coating & plating adhesiveness such as minor scratch, impression, pit, roll mark and oxidation tint.
High-grade finishing surface	FC(O4)	One side of relatively good quality is free from any remarkable defect visible and the other side must reach FB requirements at least.
Ultra high-grade finishing surface	FD(O5)	One side of relatively good quality is free from any defect, namely appearance quality after painting or electrogalvanizing is no affected, and the other side must reach FB requirements at least.

DC05(BSC2) cold-rolled low carbon steel reference list of equivalent steel grades:

Standard No.

Q/BQB 403-2003

BZJ 492-2004

EN 10130-1999

D2N 1623-(1)-1983

GB/T 5213-2001

Q/BQB 403-1999 BZJ407-1999

Steel grade

DC05(BSC2)

DC05

FeP05

SC2

BSC2

DC05(BSC2) cold-rolled low carbon steel tensile strain mark situation:
It is guaranteed that no tensile strain mark occurs on DC05(BSC2) cold-rolled low carbon steel plates and strips at their application in case of room temperature storage.

extra-deep drawing quality cold coil steel