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 M-252 is a vacuum induction method alloy recommended for heavy-duty high temperature applications in the range 1300-1600 F. It has good stress-rupture strength, fatigue strength and mechanical strength at elevated temperatures. The alloy responds to an age-hardening heat treatment.