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.FOX 130 is an oil hardening manganese-molybdenum alloy steel recommended for automobile and general engineering machinery parts such as crankshafts, axles, connecting rods, gears, fasteners and other high tensile and shock resisting component parts.