NIMONIC Alloy 80A (UNS N07080) Properties and Applications
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NIMONIC Alloy 80A (UNS N07080) Properties and Applications
NIMONIC Alloy 80A, also known by its UNS designation N07080, is a nickel-chromium alloy that offers excellent high-temperature strength and corrosion resistance. This superalloy is widely used in demanding applications where performance under extreme conditions is critical.
Key Properties of NIMONIC Alloy 80A
The alloy exhibits several important characteristics that make it suitable for high-performance applications:
- High strength at elevated temperatures (up to 815°C/1500°F)
- Excellent creep resistance
- Good oxidation resistance
- Outstanding corrosion resistance
- Good fabricability and weldability
Keyword: NIMONIC Alloy 80A UNS N07080
Chemical Composition
The typical composition of NIMONIC Alloy 80A includes:
| Element | Percentage |
|---|---|
| Nickel (Ni) | Balance |
| Chromium (Cr) | 19-22% |
| Aluminum (Al) | 1.0-1.8% |
| Titanium (Ti) | 1.8-2.7% |
| Iron (Fe) | ≤3.0% |
| Carbon (C) | ≤0.10% |
Mechanical Properties
At room temperature, NIMONIC Alloy 80A typically exhibits:
- Tensile strength: 900-1200 MPa
- Yield strength: 600-900 MPa
- Elongation: 15-30%
Common Applications
Due to its exceptional properties, NIMONIC Alloy 80A finds use in various industries:
Aerospace Industry
The alloy is used in turbine blades, combustion chambers, and other high-temperature components in jet engines.
Power Generation
It’s employed in gas turbine components and other parts exposed to high temperatures in power plants.
Industrial Processing
The alloy serves in furnace components, heat treatment fixtures, and other high-temperature industrial applications.
Heat Treatment
NIMONIC Alloy 80A typically undergoes solution treatment at 1080°C (1975°F) followed by air cooling, and then aging at 700-800°C (1290-1470°F) to achieve optimal properties.
Conclusion
NIMONIC Alloy 80A (UNS N07080) remains a material of choice for engineers designing components that must withstand extreme temperatures while maintaining structural integrity. Its combination of high-temperature strength, corrosion resistance, and fabricability makes it invaluable across multiple industries.