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 C1080 is a high carbon, water or oil hardening tool and spring steel having medium hardness penetration. It is recommended for general purpose tools, springs, and machinery parts requiring high hardness and wear resistance.