China GB GB/T 1221 (1992) , GB/T 8732 (2004) , 1Cr12Mo Specialsteel Heat-resisting steel bars and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Class | Grade | Type | Standard | Country | Application |
---|---|---|---|---|---|---|
Steel Grades | Specialsteel | 1Cr12Mo | Martensite | GB | China | Heat-resisting steel bars |
C | Si | Mn | P | S | Ni | Cr | Mo | Cu |
---|---|---|---|---|---|---|---|---|
0.10 -0.15 | ≤0.50 | 0.30 -0.50 | ≤0.035 | ≤0.300 | 0.30 -0.60 | 11.50 -13.00 | 0.30 -0.60 | ≤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) |
---|---|---|---|---|---|---|
751 (≥) | 811 (≥) | 12 | 34 | 22 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 231 |
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 | - | - | 0.11 | - | |||
817 | 232 | - | 24.3 | 233 | - | ||
499 | - | 13 | 13.2 | 442 | 244 |
Heat treated : 1119°C - 1534°C
GB/T 1221 (1992) | Heat-resisting steel bars | GB-T-1221--(1992)--.pdf |
GB/T 8732 (2004) | Steels of blade for steam turbine | GB-T-8732--(2004)-.pdf |
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