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. C42200 is brass with an addition of tin (nominally 1.1%). It can be machined, formed and joined successfully. It has good resistance to corrosion. Typical uses include terminals, fuse clips, contact springs and electrical connectors.