Japan JIS SKH57 W-phase system high-speed tool steel and SKH57 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Type | Steel Grade | Standard | Country | Application |
---|---|---|---|---|---|
Steel Grades | Tool Steel And Hard Alloy | SKH57 | JIS | Japan | W-phase system high-speed tool steel |
SKH4 |
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SKH10 |
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SKH40 |
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SKH50 |
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SKH51 |
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SKH52 |
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SKH53 |
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SKH54 |
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SKH55 |
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SKH56 |
C(%) | Si(%) | Mn(%) | Cr(%) | Mo(%) | V(%) | W(%) | Co(%) |
---|---|---|---|---|---|---|---|
1.20-1.35 | Max 0.45 | Max 0.40 | 3.80-4.50 | 3.20-3.90 | 3.00-3.50 | 9.00-10.00 | 9.50-10.50 |
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) |
---|---|---|---|---|---|---|
216 (≥) | 455 (≥) | 42 | 13 | 42 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 342 |
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 |
---|---|---|---|---|---|---|---|
31 | - | - | 0.21 | - | |||
794 | 457 | - | 13.3 | 414 | - | ||
947 | - | 21 | 42.2 | 114 | 414 |
Heat treated : 1233°C - 1145°C
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