Sweden SS R4 Carbide for cutting tools and R4 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 | R4 | SS | Sweden | Carbide for cutting tools |
H05 |
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HIP |
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HIP |
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HM |
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HM |
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HML |
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HML |
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RIP |
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RIP |
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R4 |
Co(%) |
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12.5 |
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) |
---|---|---|---|---|---|---|
612 (≥) | 667 (≥) | 34 | 23 | 22 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 131 |
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 | - | - | 0.22 | - | |||
484 | 741 | - | 44.3 | 122 | - | ||
672 | - | 44 | 34.2 | 441 | 342 |
Heat treated : 1276°C - 1515°C
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