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.Udimet 901 is a nickel-base alloy having high tensile and rupture strength to 1200 F. It is recommended for use in aircraft, aerospace and gas turbine components.