GH1139
China GBT GH1139 High temperature iron base alloy and GH1139 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Type | Steel Grade | Standard | Country | Application |
|---|---|---|---|---|---|
| Steel Grades | Special Alloy | GH1139 | GBT | China | High temperature iron base alloy |
| GH3128 | |||||
| GH4033 | |||||
| GH4037 | |||||
| GH4043 | |||||
| GH4049 | |||||
| GH4133 | |||||
| GH4169 | |||||
| GH1013 | |||||
| GH1014 | |||||
| GH1138 |
Chemical composition(mass fraction)(wt.%) of the GH1139
| C(％) | Mn(％) | Cr(％) | Ni(％) | B(%) | Fe(%) | Other(%) |
|---|---|---|---|---|---|---|
| Max 0.12 | 5.0-7.0 | 23.0-26.0 | 15.0-18.0 | Max 0.01 | Balance | Si:Max 1.0,N: 0.30-0.45 |
Mechanical Properties of steel grade GH1139
| 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) |
|---|---|---|---|---|---|---|
| 764 (≥) | 356 (≥) | 22 | 22 | 13 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 333 |
Physical Properties of steel grade GH1139
| 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 | – | – | 0.21 | – | |||
| 926 | 685 | – | 31.3 | 214 | – | ||
| 347 | – | 11 | 32.2 | 413 | 421 |
Heat Treatment of steel grade GH1139
Heat treated : 1232°C – 1579°C
Technological Curves of steel grade GH1139
No Curve