China GB GB/T 14992 (2005) , GB/T 14995 (2010) , GB/T 14996 (2010) , GB/T 14998 (1994) , GB/T 15062 (2008) , GH1140 Specialsteel Classification and designation for superalloys and high temperature intermetallic materials and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Standard | Country | Application | 
|---|---|---|---|---|---|
| Steel Grades | Specialsteel | GH1140 | GB | China | Classification and designation for superalloys and high temperature intermetallic materials | 
| C | Cr | Mo | Ni | W | Al | Ti | Si | P | S | Ce | 
|---|---|---|---|---|---|---|---|---|---|---|
| 0.06 -0.12 | 20.0 -23.0 | 2.00 -2.50 | 35.0 -40.0 | 1.40 -1.80 | 0.20 -0.60 | 0.70 -1.20 | 0.80 -0.70 | ≤0.025 | ≤0.015 | ≤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) | 
|---|---|---|---|---|---|---|
| 562 (≥) | 316 (≥) | 33 | 22 | 22 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 223 | 
| 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 | 
|---|---|---|---|---|---|---|---|
| 12 | - | - | 0.22 | - | |||
| 681 | 888 | - | 22.3 | 113 | - | ||
| 351 | - | 33 | 42.2 | 122 | 412 | 
Heat treated : 1634°C - 1316°C
| Grade | Standard | Country | Application | 
|---|---|---|---|
| GH1140 | 
| GB/T 14992 (2005) | Classification and designation for superalloys and high temperature intermetallic materials | GB-T-14992--(2005)--.pdf | 
| GB/T 14995 (2010) | Hot-rolled superalloy sheets | GB-T-14995--(2010)--.pdf | 
| GB/T 14996 (2010) | Cold-Rolled heat-resisting superalloy sheets | GB-T-14996--(2010)--.pdf | 
| GB/T 14998 (1994) | Heat-resisting superalloy blanks for forged rings | GB-T-14998--(1994)-.pdf | 
| GB/T 15062 (2008) | Superalloy tube for general application | GB-T-15062--(2008)-.pdf | 
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