View Sample Alloy Digest Data Sheet (PDF)Since 1952, Alloy Digest has been the leading reference for materials property data on metals and alloys used throughout the world. Featuring graphs, charts and tables, these sheets give facts and figures on composition or characterization, physical and mechanical properties, heat treatment, and machinability.HAYNES ALLOY No. 214 is a nickel-base alloy with excellent oxidation resistance to 2200 F (1205 C), attributable to the tenacious and protective A1203-type film which is modified by a small but effective amount of yttrium. The alloy is also useful in carburizing service and in resisting chlorine contaminated atmospheres.