Copper Alloy Compositions

Table 1

Nominal Chemical Composition of Copper Alloys

Composition (wt. %)
Alloys UNS Number Cu Fe Cr Ni Al Zn Sn Others
Oxygen free C10100 99.99 - - - - - - -
Electrolytic tough pitch C11000 99.99 - - - - - - -
Zirconium copper C15000 99.95 - - - - - - 0.13-0.20 Zr
Cadmium copper C16200 98.8-99.3 - - - - - - 0.7-1.2 Cd
Beryllium copper C17000 Bal. - - - - - - 1.6-1.8 Be
Chromium copper C18200 Bal. - 0.6-1.2 - - - - -
Leaded copper C18700 Bal. - - - - - - 0.8-1.5 Pb
Free cutting brass C36000 60-63 - - - - Bal. - 2.5-3.7 Pb
Inhibited admiralty C44300 70-73 - - - - Bal. 0.9-1.2 0.02-0.10 As
Inhibited naval brass C46500 59-62 - - - - Bal. 0.5-1.0 0.1 As
Aluminum bronze C60600 92-96 0.5* - - 4.0-7.0 - - -
Nickel aluminum bronze C63000 78-85 2-4 - 4.0-5.5 9-11 0.3* 0.2* -
90-10 nickel copper C70600 Bal. 1.0-1.8 - 9-11 - 1.0* - 0.05* Pb, 1.0* Mn
80-20- nickel copper C71000 Bal. 1.0* - 19-23 - 1.0* - 0.05* Pb, 1.0* Mn
70-30 nickel copper C71500 Bal. 0.4-0.7 - 29-33 - 1.0* - 0.05* Pb, 1.0* Mn

* = Max.

 

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