24 July 2021 Hardware Tool Steel Sheet
SKT3 Hardware Tool Steel Sheet
SKT3 is the Japanese national standard steel, equivalent to GB standard 5CrMnMo .
SKT3 a high toughness forging die steel, high toughness, a certain thermal strength and wear resistance. Quenching process to improve the strength of the mold, the surface of the thermal fatigue resistance and life has an unparalleled effect, which is widely used in modern mold manufacturing.
Chemical Composition(wt.%):
| C(%) | V(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Mo(%) | Ni(%) | Cu(%) |
|---|---|---|---|---|---|---|---|---|---|
| 0.5-0.6 | ≦0.2 | ≦0.35 | 0.60-1.05 | ≦0.03 | ≦0.03 | 0.9-1.2 | 0.3-0.5 | 0.25-0.60 | ≦0.25 |
Physical Property:
| YieldRp0.2 (MPa) | Tensile Rm (MPa) | Impact KV/Ku (J) | Elongation A (%) | Reduction in cross section on fracture Z (%) | As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 573 (≥) | 137 (≥) | 44 | 24 | 34 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 121 |