GH4049
GH4049 alloy is a Ni-Co-Cr based precipitation hardening deformation high temperature alloy, used below 950 degrees Celsius. The alloy has good oxidation resistance below 1000 degrees Celsius and high high temperature strength below 950 degrees Celsius. Compared with nickel-based alloys of similar use, the alloy has poor hot working plasticity, which can be improved after electroslag remelting or vacuum arc remelting.
Content
Chemical composition of GH4049(%)
| Element | Minimum(%) | Maximum(%) |
|---|---|---|
| C | - | 0.1 |
| Cr | 9.5 | 11 |
| Ni | remiander | remiander |
| Al | 3.7 | 4.4 |
| Ti | 1.4 | 1.9 |
| V | 0.2 | 0.5 |
| W | 5 | 6 |
| Mo | 4.5 | 5.5 |
| Fe | - | 1.5 |
| Ce | - | 0.02 |
| B | - | 0.015 |
| S | - | 0.01 |
| P | - | 0.01 |
| Si | - | 0.5 |
| Mn | - | 0.5 |
Physical properties of GH4049
| Property | Value |
|---|---|
| Density | 8.44 g/cm³ |
| Melting range | 1320-1390 ℃ |
Mechanical properties of GH4049 alloy
| Property | Value |
|---|---|
| Tensile Strength | ≥570 MPa |
| Yield Strength | ≥275 MPa |
| Hardness (HB) | ≤363 |
| Elongation | ≥80% |
Applications of GH4049
- GH4049 is suitable for gas turbine blades with an operating temperature of 850-950℃.
- It is used to manufacture high temperature resistant parts such as nozzle housings of aircraft engines.
- Forgings can be used to manufacture marine gas engines and military equipment structural parts.
