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.Carpenter Micro-Melt T-15 Alloy is a high-speed tool steel made by the powder metallurgy (P/M) process. The alloy is high carbon with tungsten, cobalt, and vanadium for red hardness and excellent abrasion resistance. Applications include machine tools and cutters.