When automobile cold-rolled steel plates are used for parts forming, the plastic deformation degree of the material is required to be large, and the surface must not have parts with wrinkles, cracks, etc. For different parts, use different grades of automobile cold-rolled steel plates. For example, the standards of automobile cold-rolled steel plates are divided into three categories.
Steel grade | Yield strength | 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 | |||||
DC05(BSC2) | 110~190 | 260 | 38 | 39 | 40 | 41 | 1.8 | 0.20 |
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