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.SEMINOLE is a chromium-tungsten alloy steel combining great toughness in the hardened condition with a high degree of strength and hardness for hot and cold work tools. It is supplied in two grades namely, Medium and Hard.