Russia GOST 37X12H8Γ8MΦ Specialsteel Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Class | Grade | Type | Standard | Country | Application |
---|---|---|---|---|---|---|
Steel Grades | Specialsteel | 37X12H8Γ8MΦ | Austenite | GOST | Russia | Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition |
C | Si | Mn | P | S | Cr | Ni | Mo | W | Ti | Nb | V |
---|---|---|---|---|---|---|---|---|---|---|---|
0.34 -0.40 | 0.30 -0.80 | 7.50 -9.50 | ≤0.035 | ≤0.030 | 11.50 -13.50 | 7.00 -9.00 | 1.10 -1.40 | ≤0.20 | ≤0.20 | 0.25 -0.45 | 1.25 -1.55 |
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) |
---|---|---|---|---|---|---|
771 (≥) | 513 (≥) | 44 | 21 | 42 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 321 |
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 |
---|---|---|---|---|---|---|---|
12 | - | - | 0.32 | - | |||
185 | 177 | - | 14.3 | 143 | - | ||
471 | - | 24 | 41.2 | 342 | 121 |
Heat treated : 1938°C - 1978°C
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