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MH7
Japan JIS SKH58 W-phase system high-speed tool steel and SKH58 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
DATASHEET FOR:STEEL GRADES:TOOL STEEL AND HARD ALLOY:SKH58
Chemical composition(mass fraction)(wt.%) of the MH7
C(ï¼…) | Si(ï¼…) | Mn(ï¼…) | Cr(ï¼…) | Mo(ï¼…) | V(%) | W(%) |
---|---|---|---|---|---|---|
0.95-1.05 | Max 0.70 | Max 0.40 | 3.50-4.50 | 8.20-9.20 | 1.70-2.20 | 1.50-2.10 |
Mechanical properties / Mechanische Eigenschaften / Caracteristiques mecaniques of grade SKH58
Mechanical properties / Mechanische Eigenschaften / Caracteristiques mecaniques of grade SKH58
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) |
---|---|---|---|---|---|---|
295 (≥) | 724 (≥) | 21 | 23 | 21 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 144 |
Mechanical properties / Mechanische Eigenschaften / Caracteristiques mecaniques of grade MH7
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 |
---|---|---|---|---|---|---|---|
13 | - | - | 0.14 | - | |||
147 | 415 | - | 24.3 | 133 | - | ||
332 | - | 11 | 41.2 | 323 | 322 |