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.Copper Alloy No. 978 is a cast leaded nickel bronze containing 25% nickel; it is known as 25% Nickel Silver. It has a pleasing silvery-white color and high resistance to corrosion in many environments. Its many uses include food handling equipment, ornamental applications and marine hardware.