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.Compax Supreme is a further improvement of Compax (see Alloy Digest TS-488). The alloy is extremely clean with a homogeneous microstructure. Sulfur is very low. Carbon is held to the high end of the range to consistently achieve high hardness for molds with larger cross sections.