China GB GH1138 Superalloys Iron-based superalloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Class | Grade | Standard | Country | Application |
---|---|---|---|---|---|
Steel Grades | Superalloys | GH1138 | GB | China | Iron-based superalloy |
C | Cr | Mo | Ni | W | Al | Nb | B | Fe | Mn | Si | Ce | N | Zr |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
≤0.10 | 18.0 -22.0 | 2.0 -2.6 | 35.0 -40.0 | 4.5 -5.2 | ≤0.5 | 1.0 -1.7 | ≤0.008 | ≤Remainder | 1.0 -2.0 | ≤0.8 | ≤0.05 | 0.10 -0.25 | ≤0.05 |
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) |
---|---|---|---|---|---|---|
879 (≥) | 339 (≥) | 42 | 31 | 12 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 144 |
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 |
---|---|---|---|---|---|---|---|
41 | - | - | 0.41 | - | |||
412 | 459 | - | 21.3 | 133 | - | ||
831 | - | 14 | 42.2 | 214 | 431 |
Heat treated : 1734°C - 1538°C
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