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GH2761
GH2761 is a Fe-Ni-Cr base precipitation hardening deformation superalloy with a service temperature below 750 ℃. The strength of the alloy is improved by adding high aluminum and high iron and controlling the Al/Ti ratio of the alloy. The alloy has stable structure, high yield strength, good resistance to cold and hot fatigue and low cycle fatigue, as well as good hot workability and machinability. The alloy has been used to make aero-engine turbine discs, compressor discs, drums, turbine casings, rectifying blades, precision bolts and other parts. The alloy has good resistance to gas corrosion below 900 ℃ and stress corrosion in gas atmosphere. After aging at 650-700 ℃ * 2000h, no new phase precipitates; A small amount of Laves phase precipitates after aging at 750 ℃ * 2000h.
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product details
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Brand |
GH2761 |
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Similar brands |
GH761 H27610 |
|
Technicalstandard |
GB/T 14992-2005 《Classification and designation of superalloy and intermetallic compound high-temperature materials》HB/Z 140 《Heat treatment process of aviation superalloy》
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Classification |
Special alloy steel |
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Label |
Solution strengthened iron-based alloy Superalloy |
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Explain |
GH2761 is a Fe-Ni-Cr base precipitation hardening deformation superalloy with a service temperature below 750 ℃. The strength of the alloy is improved by adding high aluminum and high iron and controlling the Al/Ti ratio of the alloy. The alloy has stable structure, high yield strength, good resistance to cold and hot fatigue and low cycle fatigue, as well as good hot workability and machinability. The alloy has been used to make aero-engine turbine discs, compressor discs, drums, turbine casings, rectifying blades, precision bolts and other parts. The alloy has good resistance to gas corrosion below 900 ℃ and stress corrosion in gas atmosphere. After aging at 650-700 ℃ * 2000h, no new phase precipitates; A small amount of Laves phase precipitates after aging at 750 ℃ * 2000h. |
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Density |
8.1g/cm3 |
Chemical composition:%
| Element |
Fe |
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Cu |
B |
Mo |
Ti |
W |
Al |
Ce |
|
Min. |
Allowance |
0.02 |
- |
- |
- |
- |
12 |
42 |
- |
- |
1.4 |
3.2 |
2.8 |
1.4 |
- |
|
Max. |
0.07 |
0.4 |
0.5 |
0.02 |
0.008 |
14 |
45 |
0.2 |
0.015 |
1.9 |
3.65 |
3.3 |
1.85 |
0.03 |
Note: The above information is for reference only. Some elements in different standards and specifications may be different..
The information of the above materials is rough description, and any deviation may be used for reference only
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