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.SAE 8655 is a triple-alloy steel that is normally hardened by quenching in oil; however, it may water quenched if sufficient precautions are taken with parts having drastic dimensional changes or sharp corners. Its good hardenability and resultant hardness and strength make it suitable for many tools and machine parts such as wrenches, shear blades, shafts, springs and gears.