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.PYROMET 350 is a chromium-nickel-molybdenum stainless steel that can be hardened by transformation to martensite and/or preciptation hardening. It is used for gas turbine components and similar parts where high strength is required at room intermediate temperatures.