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 67 CHISEL is the general-purpose, tungsten-type of shock-resisting tool steel. It has excellent properties for cold battering tools and hot-work shock applications. It is characterized by unusual toughness, resistance to fatigue and relative ease of heat treatment.