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.TOUGHTEM is a chromium-nickel-molybdenum, low-alloy, hot-work steel which has been developed especially for forging die-block applications. It has excellent through-hardening characteristics and good machinability.