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.AISI Type S5 was developed primarily for maximum shock resistance at hardnesses below Rockwell C 59. It may be hardened in either oil or water and has good wear-resistance.