China GB GB/T 1221 (1992) , 1Cr12WMoV Specialsteel Heat-resisting steel bars and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Type | Standard | Country | Application | 
|---|---|---|---|---|---|---|
| Steel Grades | Specialsteel | 1Cr12WMoV | Martensite | GB | China | Heat-resisting steel bars | 
| C | Si | Mn | P | S | Ni | Cr | Mo | W | V | 
|---|---|---|---|---|---|---|---|---|---|
| 0.12 -0.18 | ≤0.50 | 0.50 -0.90 | ≤0.035 | ≤0.030 | 0.40 -0.80 | 11.00 -13.00 | 0.50 -0.70 | 0.70 -1.10 | 0.18 -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) | 
|---|---|---|---|---|---|---|
| 234 (≥) | 664 (≥) | 22 | 41 | 43 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 341 | 
| 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 | - | |||
| 612 | 317 | - | 42.3 | 144 | - | ||
| 892 | - | 14 | 23.2 | 412 | 332 | 
Heat treated : 1857°C - 1469°C
| GB/T 1221 (1992) | Heat-resisting steel bars | GB-T-1221--(1992)-.pdf | 
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