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.FAGERSTA-D65 is an oil or air hardening tool steel recommended for punching, shearing and stamping tools requiring high abrasion resistance and for cold working large sections of metal.