USA UNS SAE J 437 (1970), SAE J 438 (1970), W108 Commerial Tool Die Steels Water quenching tool steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Standard | Country | Application |
|---|---|---|---|---|---|
| Steel Grades | Tool Die Steels | W108 Commerial | UNS | USA | Water quenching tool steel |
| C | Si | Mn | Cr |
|---|---|---|---|
| 0.70 -0.85 | ≤0.35 | ≤0.35 | ≤0.20 |
| 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) |
|---|---|---|---|---|---|---|
| 782 (≥) | 128 (≥) | 33 | 23 | 12 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 141 |
| 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 |
|---|---|---|---|---|---|---|---|
| 12 | - | - | 0.43 | - | |||
| 559 | 637 | - | 22.3 | 344 | - | ||
| 396 | - | 41 | 14.2 | 144 | 313 |
Heat treated : 1838°C - 1162°C
| Grade | Standard | Country | Application |
|---|---|---|---|
| AISI W108 Commercial | |||
| SAE W108 Commercial | |||
| ASTM W108 Standard | |||
| ASTM W108 Extra | |||
| ASTM W108 Special |
| SAE J 437 (1970) | Selection and heat treatment of tool and die steels | SAE-J-437-(1970).pdf |
| SAE J 438 (1970) | Tool and die steels | SAE-J-438-(1970).pdf |
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