Inconel X750 Nickel Alloy
Inconel X750 (UNS N07750) is a nickel-chromium-based precipitation-hardening high-temperature alloy. It is strengthened by the γ' phase (Ni3(Al,Ti,Nb)), and exhibits excellent oxidation resistance and corrosion resistance below 980℃. Its high strength and anti-relaxation properties make it suitable for critical applications such as annular parts of aircraft engines, high-temperature springs, and nuclear reactor components.
Chemical Composition
|
Ni |
C |
Si |
Mn |
S |
Cr |
Fe |
Al |
Mo |
Ti |
Nb |
Cu |
Co |
|
|
Min |
70 |
- |
- |
- |
- |
14 |
5 |
0.4 |
7 |
2.25 |
0.7 |
- |
- |
|
Max |
0.08 |
0.5 |
1 |
0.01 |
17 |
9 |
1 |
9.5 |
2.75 |
1.2 |
0.5 |
1 |
Material Properties
|
Density |
Melting Point |
Minimum Mechanical Properties of the Alloy at Room Temperature |
||
|
Tensile Strength |
Yield Strength |
Elongation |
||
|
g/cm3 |
℃ |
Rm N/mm2 |
Rp0.2 N/mm2 |
A5% |
|
8.28 |
1395-1425 |
1137 |
724 |
20 |
Standards
ASTM B637,ASTM A240,ASTM B829
Feature
Inconel X-750: Corrosion/oxidation resistance (<980°C), high strength (<800°C), stress relaxation resistance (<540°C), good formability/weldability, excellent cryogenic mechanical properties
Applications
Inconel X-750 applications:
• High-temp springs/bolts
• Rocket thrust chambers
• High-pressure vessels
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