C76400 zinc Cupronickel

C76400 copper nickel zinc white copper
C76400 zinc white copper
Standard: ASTM b151m-1989 and b206m-1987 (1992 and 1993)
Chemical composition:
Copper + silver (Cu + Ag): 58.5 ~ 61.5
Lead Pb: ≤ 0.05
Iron Fe: ≤ 0.25
Zinc Zn: surplus
Nickel + cobalt (Ni + CO): 16.5 ~ 19.5
Manganese Mn: ≤ 0.50
Zinc white copper is widely used in manufacturing corrosion-resistant structural parts, such as various precision instruments, springs, sockets, covers of high-level electronic components, for its excellent abrasiveness, brazing and stress relaxation resistance, high strength and elasticity, good corrosion resistance, and easy electroplating, hot and cold processing and other technical properties. Zinc white copper containing a small amount of lead has good machinability and cold workability, and is widely used for making precision parts such as clocks and optical instruments. In addition, zinc white copper also has a broad market in musical instruments, tableware, glasses frames and decoration projects.