Spring material is high elasticity, stand high temperature, high yield strength, easy processing property. Uses wildly, such as spring, spectacles frames, telecommunication, battery pack, oscillator case, pen ball, decoration, instrument, antenna, switch, relay strip, terminal, computer parts, etc.
Copper alloy its mechanical property after mill harden or age harden (property is better than Beryllium Copper) is composition of Copper, Nickel, Tin, has good formability, after heat treatment, has good mechanical property.

1. Hardness, more than HV400.
2. Has good resistance to heat relaxation.
3. In contact, has good corrosion resistance.
4. Temperature between 150°C~250°C has a steady electric conductivity.
5. Very suitable for electroplating and solder.