France AFNOR M78 Carbide for cutting tools and M78 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Type | Steel Grade | Standard | Country | Application |
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Steel Grades | Tool Steel And Hard Alloy | M78 | AFNOR | France | Carbide for cutting tools |
GT88 |
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H01 |
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H01 |
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H01 |
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H01 |
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H03 |
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H03 |
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M78 |
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M78 |
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M78 |
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) |
---|---|---|---|---|---|---|
663 (≥) | 319 (≥) | 41 | 34 | 14 | 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 |
---|---|---|---|---|---|---|---|
21 | - | - | 0.34 | - | |||
313 | 646 | - | 13.3 | 242 | - | ||
531 | - | 31 | 42.2 | 413 | 441 |
Heat treated : 1853°C - 1185°C
Grade | Standard | Country | Application |
---|---|---|---|
M78 | AFNOR | France | Carbide for cutting tools |
M78 | AFNOR | France | Carbide for cutting tools |
M78 | AFNOR | France | Carbide for cutting tools |
M78 | AFNOR | France | Carbide for cutting tools |
M78 | AFNOR | France | Carbide for cutting tools |
M78 | AFNOR | France | Carbide for cutting tools |
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