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 | 
| 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 | 
| 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) | 
|---|---|---|---|---|---|---|
| 668 (≥) | 396 (≥) | 31 | 43 | 14 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 441 | 
| 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 | 
|---|---|---|---|---|---|---|---|
| 34 | - | - | 0.22 | - | |||
| 524 | 547 | - | 44.3 | 442 | - | ||
| 977 | - | 42 | 13.2 | 111 | 122 | 
Heat treated : 1417°C - 1114°C
| Grade | Standard | Country | Application | 
|---|---|---|---|
| ASTM H25 | |||
| SWRCH25A | |||
| SWRCH25K | |||
| H25 | |||
| 36X18H25C2 | 
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