China cold rolled steel coil DC01 DC03 DC04 DC06 Manufacturer and Supplier | Ruiyi

Short Description:

DC03 – This grade is suitable for forming requirements such as Deep drawing and difficult profiles suitable. DC04 – This quality is suitable for high deformation requirements. … DC06 – This special deep drawing quality is suitable for the highest deformation requirements.

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With excellent drawing and welding performance and relatively high dimensional accuracy, the clod rolled low carbon and ultra-low carbon steel plates provided by Mittel have been widely applied to manufacture of various automotive parts. With some ductility, DC04(St14, St15) low carbon and ultra-low carbon automotive steel plates are suitable to simple forming, bending or welding.

DC04(St14, St15) low carbon and ultra-low carbon automotive steel mechanical and process performance:

Steel grade	Yield strength MPa	Tensile strength Mpa ≥	After Breakage Percent Elongation (L0=80mm, b=20mm)%≥				rb, c ≥	nb, c ≥
			Nominal Thickness mm
			<;0.70	0.70~<;1.0	1.0~<;1.6	≥1.6
DC04(St14, St15)	120~210	270	36	38	39	40	1.5	0.18

a taking RP0.2 in case of indistinct yield, otherwise ReL.
c r=(r90+2r45+r0)/4; n= (n90 +2n45+n0)/4.

DC04(St14, St15) low carbon and ultra-low carbon automotive steel plates sizes:
Nominal thickness: 0.30mm~0.35mm, nominal width: 700mm~1850mm.

DC04(St14, St15) low carbon and ultra-low carbon automotive steel tensile strain mark:

It is guaranteed that no tensile strain mark occurs on steel plates and strips at their application within 6 months after they are produced and in case of room temperature storage.

DC04(St14, St15) low carbon and ultra-low carbon automotive 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 electro galvanizing is no affected, and the other side must reach FB requirements at least.