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.DELORO STELLITE 4 is a cobalt-base alloy having high wear resistance, good high temperature strength. It is a machinable casting alloy recommended for hot extrusion and pressing dies, etc.