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.Sandmeyer alloy 2304 has 23% Cr, making it close in corrosion resistance to type 316 stainless steel, but with less risk to chloride iron stress corrosion cracking due to its duplex microstructure.