Korea KS STS21 Carbide for cutting tools and STS21 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 | STS21 | KS | Korea | Carbide for cutting tools |
STC5 |
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STC6 |
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STC6 |
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STC7 |
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STC7 |
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STS11 |
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STS11 |
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STS2 |
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STS2 |
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STS21 |
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) |
---|---|---|---|---|---|---|
491 (≥) | 392 (≥) | 33 | 21 | 41 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 133 |
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 |
---|---|---|---|---|---|---|---|
33 | - | - | 0.22 | - | |||
221 | 854 | - | 21.3 | 333 | - | ||
578 | - | 21 | 42.2 | 223 | 312 |
Heat treated : 1512°C - 1277°C
Grade | Standard | Country | Application |
---|---|---|---|
STS21 | KS | Korea | Carbide for cutting tools |
STS21 | KS | Korea | Carbide for cutting tools |
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