China GB GB/T 14992 (2005) , GH2038 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 | GH2038 | GB | China | Classification and designation for superalloys and high temperature intermetallic materials | 
| C | Cr | Ni | Al | Ti | Si | Mn | P | S | B | 
|---|---|---|---|---|---|---|---|---|---|
| ≤0.10 | 10.0 -12.5 | 18.0 -21.0 | ≤0.50 | 2.30 -2.80 | ≤1.00 | ≤1.00 | ≤0.030 | ≤0.020 | ≤0.008 | 
| 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) | 
|---|---|---|---|---|---|---|
| 245 (≥) | 148 (≥) | 31 | 42 | 44 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 234 | 
| 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 | 
|---|---|---|---|---|---|---|---|
| 32 | - | - | 0.41 | - | |||
| 732 | 156 | - | 23.3 | 211 | - | ||
| 653 | - | 34 | 41.2 | 111 | 244 | 
Heat treated : 1872°C - 1741°C
| Grade | Standard | Country | Application | 
|---|---|---|---|
| GH2038 | 
| GB/T 14992 (2005) | Classification and designation for superalloys and high temperature intermetallic materials | GB-T-14992--(2005)--.pdf | 
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