High temperature oxidation resistance: HASTELLOY® X

19 November 2020

HASTELLOY® X is a wrought nickel base alloy with great high temperature strength and oxidation resistance. Although HASTELLOY X is primarily noted for heat and oxidation resistance, it also has strong resistance to chloride stress-corrosion cracking and has good resistance to carburization, reducing or carburizing atmospheres. Alloy X is one of the most widely used nickel base superalloys for gas turbine engine components. 

AMS 5754 has no yield or tensile strength requirements, but it does require a hardness maximum and stress rupture minimums. Strong and Oxidation Resistant to 2200°F. Tests were conducted by exposing samples to dry air at 2000°F and to dry air pressurized to 300 psi at 1750°F. Two criteria for evaluating oxidation resistance are weight change and depth of corrosion penetration. HASTELLOY X excels in both respects due to the formation of a protective, tenacious oxide film. 

HASTELLOY® is a registered trademark of Haynes International, Inc. 

Image credit: High Performance Alloys, Inc.