T20825
USA UNS T20825 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 | T20825 | UNS | USA | Hot-Work Tool Steel |
Chemical composition(mass fraction)(wt.%) of the T20825
| C | Si | Mn | P | S | Cr | Mo | V | W | Ni＋Cu |
|---|---|---|---|---|---|---|---|---|---|
| 0.22 -0.32 | 0.15 -0.40 | 0.15 -0.40 | ≤0.030 | ≤0.030 | 3.75 -4.50 | ≤ ≥ | 0.40 -0.60 | 14.00 -16.00 | ≤0.75 |
Mechanical Properties of steel grade T20825
| 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) |
|---|---|---|---|---|---|---|
| 228 (≥) | 397 (≥) | 11 | 32 | 11 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 442 |
Physical Properties of steel grade T20825
| 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 | – | – | 0.13 | – | |||
| 621 | 615 | – | 12.3 | 324 | – | ||
| 848 | – | 13 | 33.2 | 344 | 333 |
Heat Treatment of steel grade T20825
Heat treated : 1368°C – 1195°C
Technological Curves of steel grade T20825
No Curve
Cross Reference Table (Equivalent Grade) of T20825
| Grade | Standard | Country | Application |
|---|---|---|---|
| UNS T20825 | |||
| T20825 |