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.Inconel Alloy 725HS is a Ni-Cr-Mo-Cb alloy that is age hardenable and is a higher strength version of Inconel alloy 725 (see Alloy Digest Ni-445). The alloy is corrosion resistant and is often used in fastener or marine fabrication applications.