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.BETHLEHEM M-2 is a molybdenum-tungsten type of high-speed steel. In general, it can be used for the same applications as the 18 tungsten-4 chromium-1 vanadium (AISI Type T1) high-speed steel. Its higher carbon content (relative to Type T1) and balanced composition produce properties applicable to all general-purpose high-speed uses.