Data Sheet D4 - CuZn20

(1970 Edition)

Wrought Materials - Copper-Zinc Alloys - Brasses

Common names: 80/20 Brass
  80/20 Gilding Metal
  Low Brass

A copper-zinc alloy with an alpha phase structure. The alloy has excellent cold-working properties and is generally resistant to dezincification and stress corrosion in most environments. Due to this combination of properties and its attractive colour, the alloy is widely used for decorative purposes and for miscellaneous formed and brazed components.

COMPOSITION (weight %)  
Cu 78.5 - 81.5
Zn rem.

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

Architectural

Ornamental metalwork; cold-formed angles, channels and trim.

Chemical

Wire for Fourdrinier paper screens; wire cloth.

Decorative

Clock and instrument dials; costume jewellery.

Electrical

Battery caps.

Mechanical

Miscellaneous components required to be brazed; numerous drawn and formed parts; bellows; flexible hose; slide (zip) fasteners.