About Alloy
Nimonic 80A (UNS N07080 / W.Nr. 2.4952, 2.4631,GH4080A) is a wrought, age-hardenable nickel-chromium alloy. Nimonic 80A is similar to Nimonic 75 but made precipitation hardenable by additions of aluminium and titanium. Alloy 80A has good corrosion and oxidation resistance and high tensile and creep-rupture properties at temperatures to 815℃ (1500ºF). Vacuum refined versions are also available. It is used for gas-turbine components (blades, rings, discs), bolts, tube supports in nuclear generators, exhaust valves in internal combustion engines and has many other offshore/marine, automotive and electrical applications.
Product Form
Rod, Bar, Wire and Forgings: ASTM B637, BS 3076&HR1
Plate, Sheet and Strip: BS HR 201
Pipe and Tube: BS HR 401
Chemical Composition
| C | Si | Mn | P | S | Cr | Ni | Co | Al | Ti | Cu | Fe |
| ≤0.10 | ≤1.00 | ≤1.00 | ≤0.020 | ≤0.015 | 18.0-21.0 | Bal | ≤2.00 | 1.0-1.8 | 1.8-2.7 | ≤0.50 | ≤3.00 |
Property
| Density, g/cm3 | Melting Point, ℃ | Tensile Strength, MPa | Yield Strength, MPa | ELongation, % | Hardness, HRB |
| 8.19 | 1320-1365 | 1250 | 780 | 35 | / |
Application
Nimonic 80A is a nickel-based superalloy known for its excellent high-temperature strength, oxidation resistance, and creep resistance, making it highly suitable for demanding applications in aerospace, gas turbines, and industrial heating applications. Specifically:
Aerospace: Nimonic 80A is used in aerospace engineering for components such as turbine blades, combustion chambers, and other high-stress parts in jet engines. Its ability to maintain mechanical properties at elevated temperatures (up to 815°C or 1500°F) without significant loss in strength or ductility makes it critical for ensuring reliable performance and longevity under extreme conditions.
Gas Turbines: In gas turbine engines, Nimonic 80A is utilized in components subjected to high temperatures and stresses, including turbine discs, blades, seals, and combustion chambers. Its resistance to oxidation and thermal fatigue helps maintain engine efficiency and reliability over extended operational periods.
Industrial Heating: Nimonic 80A is also employed in industrial heating applications where resistance to high temperatures and thermal cycling are essential. This includes furnace components, heat treatment fixtures, and other parts exposed to intense heat and mechanical stress.
Other Applications: Beyond aerospace and gas turbines, Nimonic 80A finds uses in automotive exhaust valves, nuclear reactors, and high-temperature structural components where its combination of high-temperature strength, corrosion resistance, and thermal stability are advantageous.
In conclusion, Nimonic 80A's unique properties make it a preferred choice for applications where extreme temperature environments and high mechanical stresses are encountered, ensuring reliability, performance, and longevity in critical engineering applications.
Your enquiry
Can't find the information you need? Please contact us directly.