H26
USA ASTM H26 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 | H26 | ASTM | USA | Hot-Work Tool Steel |
Chemical composition(mass fraction)(wt.%) of the H26
| C | Si | Mn | P | S | Cr | Mo | V | W | Ni＋Cu |
|---|---|---|---|---|---|---|---|---|---|
| 0.45 -0.55 | 0.15 -0.40 | 0.15 -0.40 | ≤0.030 | ≤0.030 | 3.75 -4.50 | ≤ ≥ | 0.75 -1.25 | 17.25 -19.00 | ≤0.75 |
Mechanical Properties of steel grade H26
| 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) |
|---|---|---|---|---|---|---|
| 987 (≥) | 913 (≥) | 24 | 23 | 11 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 321 |
Physical Properties of steel grade H26
| 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 |
|---|---|---|---|---|---|---|---|
| 21 | – | – | 0.21 | – | |||
| 834 | 122 | – | 41.3 | 144 | – | ||
| 568 | – | 34 | 14.2 | 424 | 324 |
Heat Treatment of steel grade H26
Heat treated : 1612°C – 1849°C
Technological Curves of steel grade H26
No Curve