Haynes International, Inc. is pleased to announce the development of HAYNES® HR-224® alloy, a new alloy with excellent oxidation resistance and improved fabricability and weldability compared to HAYNES® 214® alloy. This Ni–27.5Fe–20Cr–3.8Al alloy achieves superior oxidation resistance through the formation of a tightly adherent alumina protective scale. It exhibits excellent ductility and formability characteristics, with weldability on par with nickel-iron-chromium alloys of substantially lower aluminum contents. Potential uses include applications in heat recuperators, automotive catalytic converters and heat shields, strand annealing furnace tubulars, and other severely oxidizing environments.
To view HAYNES® HR-224® alloy data, please click here.