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.Armco PH 15-7 Mo stainless steel is a Cr-Ni-Mo-Al semi-austenitic stainless steel. It is heat treatable to high strength and hardness, maintains good corrosion resistance, and undergoes minimal distortion from heat treatment. The alloy has applications in the aerospace and other industries where high strength at elevated temperatures is required.