Russia GOST 20X12BHMΦ 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 | 20X12BHMΦ | Martensite | 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 | V | 
|---|---|---|---|---|---|---|---|---|---|---|
| 0.17 -0.23 | ≤0.60 | 0.50 -0.90 | ≤0.030 | ≤0.025 | 10.50 -12.50 | 0.50 -0.90 | 0.50 -0.70 | ≤0.20 | ≤ ≥ | 0.15 -0.30 | 
| 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) | 
|---|---|---|---|---|---|---|
| 995 (≥) | 213 (≥) | 44 | 22 | 33 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 134 | 
| 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 | 
|---|---|---|---|---|---|---|---|
| 14 | - | - | 0.31 | - | |||
| 672 | 315 | - | 34.3 | 311 | - | ||
| 456 | - | 12 | 23.2 | 441 | 211 | 
Heat treated : 1494°C - 1314°C
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