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.SIMONDS D-2 is an air-hardening tool and die steel of the high-carbon, high-chromium type. It is characterized by high resistance to abrasion, fair toughness, minimum distortion in hardening and high compressive strength. Its many uses include a wide range of cutting and forming dies, rolls, reamers, plug gages and shear blades.