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 X-751 is an age hardenable nickel-base alloy with good stress-rupture properties at 1600 F. It is highly resistant to chemical corrosion and oxidation.