Copper Alloys, BrassCW606N (CZ131) Bar

A brass for machining, fasteners and rivets.

Brasses are alloys of copper and zinc. They may also contain small amounts of other alloying elements to impart advantageous properties. Brasses have high corrosion resistance and high tensile strength. They are also suited to fabrication by hot forging. Free machining grades of brass set the standard for machining, by which other metals are compared.

CW606N/CZ131, designed to provide a compromise between machinability, ductility and strength, is a riveting and turning brass with a duplex phase structure containing a fine dispersion of lead particles to improve machinability.

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Product FormImperial SizesMetric Sizes
Round Bar EN12164316" - 1"5.0mm - 10.0mm
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Related Specifications

CZ131/CW606N corresponds to the following designations but may not be a direct equivalent:

  • UNS C35300
  • ISO CuZn37Pb2


Chemical Composition


  • Nuts
  • Fasteners
  • Rivets
  • Domestic appliances
  • Automotive engineering
  • Hose fittings
  • Intricate parts such as clock components
  • Battery terminals


  • Good strength & ductility
  • High general corrosion resistance
  • Good machinability

Additional Information


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