Nimonic 80A

UNS N07080 nickel_superalloy
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Gamma-prime hardened Ni-Cr alloy for gas turbine blades and discs operating to 815 °C. One of the original Rolls-Royce superalloys from the 1940s, still widely used in industrial turbines.

Applicable Standards

  • BS HR1
  • AMS 5754 (similar)
  • UNS N07080

Composition Ranges (wt %)

Element Min (%) Max (%) Typical Range
Ni 70.0 100.0 ~85.0
Cr 18.0 21.0 ~19.5
Ti 1.8 2.7 ~2.25
Al 1.0 1.8 ~1.4
Co — 2.0 ~1.0
Fe — 3.0 ~1.5
C 0.04 0.1 ~0.07
Ni 70.0–100.0% Cr 18.0–21.0% Ti 1.8–2.7% Al 1.0–1.8% Co 0.0–2.0% Fe 0.0–3.0% C 0.04–0.1%

Typical Applications

  • Turbine blades
  • Discs
  • Exhaust valves
  • High-temp fasteners
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