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Alloy 80A

Alloy 80A is a heat-treatable nickel based alloy with outstanding creep resistance properties and also has high resistance to fatigue under very arduous conditions. These properties combined with the high oxidation resistance inherent in the nickel-chromium alloy, make it the ideal material for gas turbine blades and other highly stressed components operating within the recommended limits of temperature and stress.

Typical applications are for high temperature springs operating under continuous stress, aircraft, marine and land-based gas turbine rotor or stator blades, combustion chambers and associated parts. Alloy 80A is also extensively used for exhaust valves and diesel engine combustion chambers.

National Specification

ASTM UNS SEA AMS British Standard Werkstoff
B637 N07080   3076 NA20 HR
HR 601
2.4952
2.4631

Material may also be released to Customer Specifications, subject to enquiry.

Technical Data

Nominal Composition by Percent

  C Mn Si S Ag Al B Bi Co Cr Cu Fe Pb Ti Ni -
Min .040 - - - - 1.0 - - - 18.0 - - - 1.8 Bal %
Max 0.10 1.0 1.0 0.15 .0005 1.8 .008 .0001 2.0 21.0 0.2 1.5 .002 2.7 - %

Typical Mechanical Properties

Solution Annealed & Precipiation Treated(Aged) PSI MPa %
Tensile Strength, min 145,000 1000 -
Yield Strength
(0.2% offset), min
90,000 620 -
Elongation on 4D, min - - 20
Reduction of Area, min - - 12
Hardness min - 300 Hv -