Data Sheet L4 - CUNi18Zn20

(1973 Edition)

Wrought Materials - Copper-Nickel-Zinc Alloys - Nickel Silvers

Common names: 18% Nickel Silver

Nickel Silver 65-18

A copper-nickel-zinc alloy with an alpha phase structure. The alloy has good corrosion resistance to many organic products, waters and corrosive atmospheres. The material has good cold formability and spring properties and is widely used for telecommunications equipment in European practice; because of its attractive silver-blue-white colour, it is also widely used for decorative applications. The most commonly used wrought forms are sheet, strip, rod and wire.

1. Some Typical Uses

2. Physical Properties

3. Fabrication Properties

4. National Specifications for Manufactured Forms

5. Mechanical Properties

6. References

INDEX NUMBERS RELATE TO LITERATURE REFERENCE; INDEX LETTERS RELATE TO FOOTNOTES AT END OF TABLE

1. Some Typical Uses

Decorative

Holloware, flatware (spoons and forks), pressed, spun and deep-drawn articles usually silver plated; lighting fittings; medals and medallions; jewellery; architectural panels and trim (including marine service); "objets d'art".

Electrical

Relay and contact springs, wiper blades, cross-bar switches, control parts and uniselector components in telecommunications equipment; contacts, connectors, connector pins and terminals; resistance wire and strip for moderately elevated temperatures; lamp caps.

Mechanical

Springs and clips; rivets; bellows and pressure-sensitive devices.

Miscellaneous

Instrument and camera parts; etching stock, nameplates and dials; musical instruments; side wires of spectacle frames; slide fasteners; medical instruments; model construction.