UK BH21 Carbide for cutting tools and BH21 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Type | Steel Grade | Standard | Country | Application |
---|---|---|---|---|---|
Steel Grades | Tool Steel And Hard Alloy | BH21 | UK | Carbide for cutting tools | |
BH11 |
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BH11 |
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BH11 |
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BH12 |
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BH12 |
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BH13 |
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BH13 |
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BH19 |
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BH19 |
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BH21 |
C(%) | Si(%) | Mn(%) | Cr(%) | Ni(%) | Mo(%) | V(%) | W(%) | Other(%) |
---|---|---|---|---|---|---|---|---|
0.25-0.35 | ≤0.40 | ≤0.40 | 2.25-2.35 | ≤0.40 | ≤0.60 | ≤0.40 | 8.50-10.0 | Cu≤0.20,Sn≤0.05 |
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) |
---|---|---|---|---|---|---|
375 (≥) | 332 (≥) | 31 | 31 | 13 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 324 |
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 |
---|---|---|---|---|---|---|---|
14 | - | - | 0.44 | - | |||
127 | 559 | - | 11.3 | 431 | - | ||
958 | - | 21 | 41.2 | 311 | 212 |
Heat treated : 1284°C - 1624°C
Grade | Standard | Country | Application |
---|---|---|---|
BH21 | UK | Carbide for cutting tools | |
BH21 | UK | Carbide for cutting tools | |
BH21A | UK | Carbide for cutting tools | |
BH21A | UK | Carbide for cutting tools |
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