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.The Swissmetal alloys SM185N (62B) and SM188N (62C) are free-machining brasses with good cold-forming capabilities. The alloys have been called medium- and low-leaded brass, respectively.