... mold, chemical sand, centrifugal, and die casting. The copper-base casting alloy family can be subdivided into three groups ... : copper (UNS No. C81100), chromium copper (C81500), yellow brass (C85200, C85400, C85700, C85800, C87900), manganese bronze (C86200 ... C95700, C95800) nickel bronze (C97300, C97600, C97800), white brass (C99700, C99750). Pure Copper and Chromium Copper. Commercially pure ...