20Cr2Ni4 Alloy Steel Plate
1）20Cr2Ni4 steel is a high-quality Cold work tool steel, It belongs to the high-quality high carbon alloy tool steel. Oil Quenched & Tempered Hardness is 423 HB.
2） 20Cr2Ni4 Chemical composition
| C(％) | 0.17～0.23 | Si(％) | 0.17～0.37 | Mn(％) | 0.30～0.60 | Cr(％) | 1.25～1.65 |
| Ni(％) | 3.25～3.65 |
3） 20Cr2Ni4 Mechanical Properties
The mechanical properties of 20Cr2Ni4 tool steels are outlined in the following table.
| Yield Rp0.2 (MPa) |
Tensile Rm (MPa) |
Impact KV/Ku (J) |
Elongation A (%) |
Reduction in cross-section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HB) |
|---|---|---|---|---|---|---|
| 155 (≥) | 945 (≥) | 14 | 32 | 31 | Solution and Aging, Annealing, Ausaging, Q+T, etc | 423 |
