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.AISI 1345 is a through-hardening, low-manganese alloy steel with intermediate hardenability. It is used where good strength is needed but low-to-medium toughness is sufficient. Applications include many parts for machines and tools.