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.Colmonoy No.75 is a hard surfacing alloy with tungsten carbide particles dispersed in a matrix of a nickel-base alloy containing chromium borides. It is supplied as a powder for application with Wall Colmonoy's SPRAYWELD.