Russia ГОСТ 03X18H12 Austenitic and 03X18H12 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Type | Steel Grade | Standard | Country | Application | 
|---|---|---|---|---|---|
| Steel Grades | Heat-Resistant Steel | 03X18H12 | ГОСТ | Russia | Austenitic | 
| 12X18H9 | |||||
| 17X18H9 | |||||
| 12X18H9T | |||||
| 04X18H10 | |||||
| 08X18H10 | |||||
| 08X18H10T | |||||
| 12X18H10T | |||||
| 12X18H10E | |||||
| 03X18H11 | |||||
| 06X18H11 | 
| C(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Ni(%) | Mo(%) | W(%) | Ti(%) | 
|---|---|---|---|---|---|---|---|---|---|
| Max 0.03 | Max 0.40 | Max 0.40 | Max 0.030 | Max 0.02 | 17.0-19.0 | 11.5-13.0 | Max 0.30 | Max 0.20 | Max 0.005 | 
| 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) | 
|---|---|---|---|---|---|---|
| 281 (≥) | 745 (≥) | 24 | 42 | 34 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 442 | 
| 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 | 
|---|---|---|---|---|---|---|---|
| 34 | - | - | 0.32 | - | |||
| 129 | 239 | - | 21.3 | 111 | - | ||
| 476 | - | 34 | 13.2 | 221 | 221 | 
Heat treated : 1237°C - 1928°C
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