Cold-rolled continuous coils sc1 formed by continuous cold deformation of hot-rolling have poor mechanical properties and high hardness. They must be annealed to restore their mechanical properties. Those without annealing are called Cold-rolled continuous coils sc1.
Mechanical properties of Cold-rolled continuous coils sc1
| Yield Rp0.2 (MPa) | Tensile Rm (MPa) | Impact KV (J) | Elongation A (%) | Reduction in cross section on fracture Z (%) | As-Heat-Treated Condition | HBW |
|---|---|---|---|---|---|---|
| 372 (≥) | 651 (≥) | 11 | 44 | 34 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 312 |
STEEL GRADE | Tensile Strength | Yield Strength max | Elongation min. | r | n | |||
<0.70 | 0.70-<1.0 | 1.0-<1.6 | >=1.6 | min | min | |||
SC1 | 270-350 | 210 | 36 | 38 | 39 | 40 | 1.5 | 0.18 |
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