Data Sheet E7 - CuZn39Pb2

(1970 Edition)

Wrought Materials - Copper-Zinc-Lead Alloys - Leaded Brasses

Common names: Forging Brass

Clock Brass

A copper-zinc-lead alloy with a duplex alpha-plus-beta phase structure containing a dispersion of fine lead particles. It is mainly supplied as rod for forging stock. The alloy exhibits an excellent combination of hot-working and machining properties and is widely used for hot pressed components.

COMPOSITION (weight %)  
Cu 57.0 - 60.0
Pb 1.0 - 2.5
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

Mechanical and General

Wide variety of hot forged and pressed components including sanitary appliances, door furniture, window fittings, taps, valves and valve parts, automobile components, decorative items, parts for mechanical handling equipment, brackets, clamps, housings, gears, cams, nuts, unions and miscellaneous machine components. Clock, watch and instrument parts (UK only), especially gears and plates requiring high degree of precision machining.