Alloy 80A is a nickel-chromium alloy similar to alloy 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 815ºC (1500ºF). Alloy 80a 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.


Chemical Composition Limits

Weight %NiCrTiAlCSiCuFeMnCoBZrS
Alloy 80A




1.0-1.80.10 max1.0 max0.2 max3.0 max1.0 max2.0 max0.008 max0.15 max

0.015 max


Alloy 80A is available in Round Bar, Flat Bar, Rod, Tube, Plate, Sheet, Strip, Forging Stock and Wire.


Rod, Bar, Wire and Forging StockBS 3076 HR1, ASTM B 637, AECMA PrEn2188, AECMA PrEn2189, AECMA PrEn 2190, AECMA PrEn 2396, AECMA PrEn2397, AIR 9165-37
Plate, Sheet and StripBS HR 201, AECMA PrEn2191
Pipe and TubeBS HR 401
OtherBS HR 601, DIN 17742, AFNOR NC 20TA, UNS N07080, Werkstoff  Nr 2.4952, Werkstoff Nr 2.4631, NIMONIC 80a (trademark), MSRR 7095 and MSRR 7011, MSRR 7013, HR201, HR401, HR601, NA20, VAT80A

Typical Mechanical Properties Alloy 80A

Rupture Strength (1000 h)
Temperatureksi MPa
595°C / 1100°F 94650
650°C / 1200°F73500
705°C / 1300°F 51350
760°C / 1400°F 32220
815°C / 1500°F 16110