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.CANNON-MUSKEGON H-12 is an air-hardening hot-work cast tool steel used for applications requiring good toughness combined with good red hardness. The alloy will harden from a relatively low austenitizing temperature. A higher silicon content is permissable in this cast steel than in AISI H-12 (wrought) tool steel.