Russia GOST H70MΦB 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 | H70MΦB | 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 | V | W |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ≤0.02 | ≤0.10 | ≤0.50 | ≤ ≥ | ≤ ≥ | ≤0.30 | ≤remaining | 25.00 -27.00 | ≤ ≥ | ≤0.15 | ≤0.80 | 1.40 -1.70 | 0.10 -0.45 |
| 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) |
|---|---|---|---|---|---|---|
| 355 (≥) | 438 (≥) | 34 | 14 | 44 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 212 |
| 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 | - | - | 0.32 | - | |||
| 178 | 312 | - | 14.3 | 332 | - | ||
| 176 | - | 13 | 12.2 | 123 | 144 |
Heat treated : 1182°C - 1525°C
| Grade | Standard | Country | Application |
|---|---|---|---|
| H70MΦB |
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