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.PERMANICKEL alloy 300 is an age-hardenable high-nickel alloy similar to DURANICKEL alloy 301 in its strength and corrosion resistance, but having higher thermal and electrical conductivity. The alloy is somewhat difficult to heat treat, and DURANICKEL alloy 301 is recommended in preference to it except for applications requiring its superior conductivity or magnetic properties.