List of copper alloys Wikipedia
Cu, Zn, Pb Colddrawn 44 70 18 B80 (Rockwell) Screws, nuts, gears, keys Nickel silver (ASTM B122) Cu, Zn, Ni Annealed 25 58 40 70 Hardware " " Coldrolled 70 85 4 170 " Nickel silver (ASTM B149) Cu, Ni, Pb, Sn Cast 18 35 15 55 Easy to machine; ornaments, plumbing : Cupronickel (ASTM B111, B171) Cu, Ni, Fe, Mn Annealed