GH5188
GH5188 is a Co-Ni-Cr based solid solution strengthened deformable high temperature alloy ,with a service temperature of less than 1100℃. 14% tungsten is added to the alloy for solid solution strengthening, which gives the alloy good comprehensive properties; a high content of chromium and trace amounts of lanthanum are added to give the alloy good high temperature oxidation resistance.
The alloy has good cold and hot processing plasticity and welding process properties, and is suitable for making aircraft engine parts that require high strength below 980℃ and oxidation resistance below 1100℃.
Content
Chemical composition of GH5188(%)
| Element | Minimum(%) | Maximum(%) |
|---|---|---|
| C | 0.05 | 0.15 |
| Cr | 20 | 24 |
| Ni | 20 | 24 |
| Co | remiander | remiander |
| W | 13 | 16 |
| Fe | - | 3 |
| B | - | 0.015 |
| La | 0.03 | 0.012 |
| Si | 0.2 | 0.5 |
| P | - | 0.02 |
| S | - | 0.015 |
| Cu | - | 0.07 |
| Ag | - | 0.001 |
| Bi | - | 0.0001 |
| Pb | - | 0.001 |
| Mn | - | 1.25 |
Physical properties of GH5188
| Property | Value |
|---|---|
| Density | 9.09 g/cm³ |
| Melting range | 1300-1360 ℃ |
Applications of GH5188
- High-temperature parts such as combustion chamber flame tubes and guide vanes of aircraft engines, with good batch production and use.
- Aircraft engine parts that require high strength below 980℃ and oxidation resistance below 1100℃.
- The corrosion resistance of the alloy plate is better than that of GH3536 alloy.
