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.UNS No. T11301 is a general-purpose high-molybdenum, low-tungsten type of high-speed tool steel. It has an excellent combination of cutting ability, toughness and finishing properties. Its cutting ability is good except for heavy-duty, continuous cutting operations where the ultimate in red-hardness is required. Its toughness is as great as that of any other high-speed steel.