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.CARPENTER HyMu 80* alloy is an unoriented soft magnetic alloy with extremely high initial permeability as well as maximum permeability with minimum hysteresis loss.