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. 1 is an abrasion-resistant alloy for high-impact applications such as dipper teeth, mill hammers, and catalyst valves. Colmonoy Special No. 1 is an abrasion-resistant iron-base alloy for use where impact is moderate such as ash plows, coal chutes, and dredge cutters. Both alloys can be ground.