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 P6 is a low-carbon, high-hardenability steel which is carburized and used for molding plastics. It develops a strong, wear-resistant case combined with a hard, tough core and is recommended for the most demanding mold requirements.