USA UNS T20824 Tool Die Steels Hot-Work Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Class | Grade | Standard | Country | Application |
---|---|---|---|---|---|
Steel Grades | Tool Die Steels | T20824 | UNS | USA | Hot-Work Tool Steel |
C | Si | Mn | P | S | Cr | Mo | V | W | Ni+Cu |
---|---|---|---|---|---|---|---|---|---|
0.42 -0.53 | 0.15 -0.40 | 0.15 -0.40 | ≤0.030 | ≤0.030 | 2.50 -3.50 | ≤ ≥ | 0.40 -0.60 | 14.00 -16.00 | ≤0.75 |
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) |
---|---|---|---|---|---|---|
321 (≥) | 164 (≥) | 32 | 21 | 43 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 214 |
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 | - | - | 0.14 | - | |||
821 | 265 | - | 21.3 | 311 | - | ||
224 | - | 43 | 13.2 | 114 | 434 |
Heat treated : 1993°C - 1832°C
Grade | Standard | Country | Application |
---|---|---|---|
UNS T20824 | |||
T20824 |
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