T20824
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 |
Chemical composition(mass fraction)(wt.%) of the T20824
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 |
Mechanical Properties of steel grade T20824
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) |
---|---|---|---|---|---|---|
756 (≥) | 333 (≥) | 32 | 14 | 42 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 443 |
Physical Properties of steel grade T20824
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 |
---|---|---|---|---|---|---|---|
23 | – | – | 0.42 | – | |||
969 | 288 | – | 33.3 | 223 | – | ||
947 | – | 33 | 14.2 | 133 | 142 |
Heat Treatment of steel grade T20824
Heat treated : 1127°C – 1533°C
Technological Curves of steel grade T20824
No Curve
Cross Reference Table (Equivalent Grade) of T20824
Grade | Standard | Country | Application |
---|---|---|---|
UNS T20824 | |||
T20824 |