CarTech 80A alloy, a nickel-base, high temperature, alloy containing a high percentage of chromium, is characterized by excellent creep-resisting properties, high oxidation resistance and high resistance to fatigue under very arduous conditions. Aluminum and titanium additions serve as hardening agents.

This alloy is heat treatable using gamma-prime precipitation.

The creep-resisting properties of CarTech 80A alloy are adversely affected by cold working the alloy following heat treatment, the effect being to cause an increase in the rate creep under given conditions. This has led to failure by rupture in a shortened time at a large elongation.

The properties of CarTech 80A alloy may be restored by re-heat treatment.