H25
USA ASTM H25 Tool Die Steels Hot-Work Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Standard | Country | Application |
|---|---|---|---|---|---|
| Steel Grades | Tool Die Steels | H25 | ASTM | USA | Hot-Work Tool Steel |
Chemical composition(mass fraction)(wt.%) of the H25
| C | Si | Mn | P | S | Cr | Mo | V | W | Ni＋Cu |
|---|---|---|---|---|---|---|---|---|---|
| 0.22 -0.32 | 0.15 -0.40 | 0.15 -0.40 | ≤0.030 | ≤0.030 | 3.75 -4.50 | ≤ ≥ | 0.40 -0.60 | 14.00 -16.00 | ≤0.75 |
Mechanical Properties of steel grade H25
| 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 (HBW) |
|---|---|---|---|---|---|---|
| 497 (≥) | 415 (≥) | 12 | 31 | 21 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 213 |
Physical Properties of steel grade H25
| Temperature (°C) |
Modulus of elasticity (GPa) |
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and | Thermal conductivity (W/m·°C) |
Specific thermal capacity (J/kg·°C) |
Specific electrical resistivity (Ω mm²/m) |
Density (kg/dm³) |
Poisson’s coefficient, ν |
|---|---|---|---|---|---|---|---|
| 44 | – | – | 0.21 | – | |||
| 384 | 638 | – | 12.3 | 112 | – | ||
| 871 | – | 43 | 23.2 | 414 | 244 |
Heat Treatment of steel grade H25
Heat treated : 1177°C – 1133°C
Technological Curves of steel grade H25
No Curve
Cross Reference Table (Equivalent Grade) of H25
| Grade | Standard | Country | Application |
|---|---|---|---|
| ASTM H25 | |||
| SWRCH25A | |||
| SWRCH25K | |||
| H25 | |||
| 36X18H25C2 |