USA SAE SAE J 437 (1970), SAE J 438 (1970), W209 Extra Tool Die Steels Tool and die steels and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Class | Grade | Standard | Country | Application |
---|---|---|---|---|---|
Steel Grades | Tool Die Steels | W209 Extra | SAE | USA | Tool and die steels |
C | Si | Mn | Cr | V |
---|---|---|---|---|
0.85 -0.95 | 0.10 -0.40 | 0.10 -0.40 | ≤ ≥ | 0.15 -0.35 |
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) |
---|---|---|---|---|---|---|
471 (≥) | 159 (≥) | 34 | 21 | 24 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 341 |
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 | - | - | 0.23 | - | |||
739 | 846 | - | 13.3 | 212 | - | ||
518 | - | 31 | 21.2 | 312 | 213 |
Heat treated : 1713°C - 1562°C
Grade | Standard | Country | Application |
---|---|---|---|
AISI W209 Commercial | |||
SAE W209 Commercial | |||
ASTM W209 Standard | |||
ASTM W209 Extra | |||
ASTM W209 Special | |||
UNS W20918 |
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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