Inconel 706 Nickel Alloy
Inconel 706(UNS N09706) is a nickel-iron-based high-temperature alloy. Through γ' phase precipitation strengthening and optimizing the aluminum/titanium ratio, it possesses high-temperature strength at 750°C and excellent fatigue performance. Its low thermal expansion property is particularly suitable for high-temperature components such as engine casings and turbine rotors of aircraft engines, which require dimensional stability.
Chemical Composition
|
Ni |
C |
Si |
Mn |
S |
P |
Fe |
Cr |
Cu |
Al |
Ti |
Nb+Ta |
B |
Co |
|
|
Min |
39 |
- |
- |
- |
- |
- |
Rem |
14.5 |
- |
- |
1.5 |
2.5 |
- |
- |
|
Max |
- |
0.06 |
0.35 |
0.35 |
0.015 |
0.35 |
17.5 |
0.3 |
0.4 |
2 |
3.3 |
0.006 |
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% |
|
8.06 |
1335-1371 |
1310 |
1005 |
20 |
Standards
ASTM B637,AMS 5666,AMS 2774
Feature
Oxidation/corrosion resistance + superior mechanical properties at high temperatures
Applications
Creep-resistant aerospace:
• Gas turbine components (≤704℃)
• Precipitation-hardenable Ni-Fe-Cr alloy
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