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N80A is a wrought, age-hardenable nickel-chromium alloy, strengthened by additions of titanium, aluminum and carbon, developed for service at temperatures up to 815℃ (1500℉). It has high strength and excellent corrosion and oxidation resistance at high temperatures.
Similar alloy's names in different standards:
Beiye designation | American designation | French designation |
N80A | Nimonic 80A |
Gas turbine componets
Bolts
Nuclear boiler tube supports
Die casting inserts and cores
Automobile exhaust valves
C | 0.06 | Cr | 19.50 |
Al | 1.45 | Ti | 2.25 |
Ni | bal. |
Solution | Solution+Aging | |
| Hardness | 221HV | — |
Yield Strength | — | 820 MPa (119 ksi) |
Tensile Strength | — | 1135 MPa (164.7 ksi) |
Elongation | — | 24% |
* Typical values for material tested in accordance with GB/T 4340.3, GB/T 228, GB/T 22315
| Density | 8.19 g/cm3 (0.296lb/in3) | ||
Melting Point | 1400 ℃ (2552oF) | ||
Thermal Conductivity (20℃) | 11.2 W/m •℃ | ||
Electrical Resistivity (20℃) | 124μΩ•cm | ||
Modulus of elasticity (20℃, Tension) | 222GPa（32.2×103ksi） | ||
(20℃, Torsion) | 85GPa(12.3×103ksi) | ||
The heat treatments recommended for alloy N80A are as follows:
For cold rolled sheet: 2-3 minutes/1150°C (2102°F)/fluidized bed quench + 20minutes/1040°C (1904°F)/aircool+4h/750°C(1382°F)/air cool.
For interstage annealing of sheet: 20 minutes/1040°C (1904°F)/air cool.
