C73200 zinc Cupronickel

C73200 zinc white copper
The composition and weight percentage content of the zinc white copper alloy are: 13.5-19.5% Ni, 18.0-22.0% Zn, 0.12-0.65% Sb, 0.3-0.12% P, 0.03-0.10% Ce, and the balance Cu. It has excellent comprehensive mechanical properties, excellent corrosion resistance, good cold and hot processing formability, and easy cutting. It can be made into wire, bar and plate, and used to manufacture precision parts in the fields of instruments, medical devices, daily necessities and communications.
Standard: ASTM b122-1990 (edition 1992 and 1993)
Chemical composition:
Copper + alloy element Cu: ≥ 99.5
Copper + silver Cu + Ag: ≥ 70.0
Lead Pb: ≤ 0.05
Iron Fe: ≤ 0.6
Zinc (Zn): 3.0 ~ 6.0
Nickel + cobalt (Ni + CO): 19.0 ~ 23.0
Manganese Mn: ≤ 1.0