H24
USA ASTM H24 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 | H24 | ASTM | USA | Hot-Work Tool Steel |
Chemical composition(mass fraction)(wt.%) of the H24
| C | Si | Mn | P | S | Cr | Mo | V | W | Ni＋Cu |
|---|---|---|---|---|---|---|---|---|---|
| 0.42 -0.53 | 0.15 -0.40 | 0.15 -0.40 | ≤0.030 | ≤0.030 | 2.50 -3.50 | ≤ ≥ | 0.40 -0.60 | 14.00 -16.00 | ≤0.75 |
Mechanical Properties of steel grade H24
| 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) |
|---|---|---|---|---|---|---|
| 763 (≥) | 437 (≥) | 11 | 43 | 34 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 112 |
Physical Properties of steel grade H24
| 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 |
|---|---|---|---|---|---|---|---|
| 24 | – | – | 0.31 | – | |||
| 239 | 459 | – | 14.3 | 221 | – | ||
| 256 | – | 32 | 24.2 | 113 | 413 |
Heat Treatment of steel grade H24
Heat treated : 1515°C – 1531°C
Technological Curves of steel grade H24
No Curve