Russia GOST XH78T Specialsteel Russia GOCT standard deformation of high temperature alloy grades and chemical composition and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Standard | Country | Application |
|---|---|---|---|---|---|
| Steel Grades | Specialsteel | XH78T | GOST | Russia | Russia GOCT standard deformation of high temperature alloy grades and chemical composition |
| C | Si | Mn | P | S | Cr | Ni | Mo | Al | Ti | Fe |
|---|---|---|---|---|---|---|---|---|---|---|
| ≤0.12 | ≤0.80 | ≤0.70 | ≤0.015 | ≤0.012 | 19.00 -22.00 | ≤remaining | ≤ ≥ | ≤0.15 | 0.15 -0.35 | ≤1.00 |
| 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) |
|---|---|---|---|---|---|---|
| 243 (≥) | 868 (≥) | 21 | 33 | 42 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 113 |
| 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 |
|---|---|---|---|---|---|---|---|
| 32 | - | - | 0.42 | - | |||
| 954 | 682 | - | 24.3 | 123 | - | ||
| 623 | - | 12 | 31.2 | 331 | 114 |
Heat treated : 1426°C - 1416°C
| Grade | Standard | Country | Application |
|---|---|---|---|
| XH78T |
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