CZ126 (CW707R)


CZ126 (CW707R)

CZ126 (CW707R) is an arsenical brass available in tubular form. It contains 70% copper 30% zinc with a small addition of arsenic, which improves the corrosion resistance without affecting the ductility and forming characteristics of the material. With reasonable strength levels this alloy is utilised in heat exchangers, condensers and in other components requiring general purpose tube. This material offers a good workability and can be manipulated by a number of techniques. It also lends itself to soldering and brazing.

Related Specifications

  • C26130
  • CW707R
  • BS2871
  • CuZn30As
  • CuZn30 (FR)

Nominal Composition

Cu 70%, Zn 30%, As 0.04%

Mechanical Properties

Ultimate Tensile Strength (N/mm²) Proof Stress (N/mm²) Elongation (%) Hardness (HB)
400 130HV

Key Features

  • Very good corrosion resistance
  • High strength and ductility
  • Good formability


Chemical processing | Heat exchangers and condensers

Columbia Metals – a leading supplier of CZ126 (CW707R)

With decades of experience and a huge range of stock, Columbia Metals is an industry leader in the supply of CZ126 (CW707R) and other high quality specialist engineering alloys.

To buy or learn more about the prices for CZ126 (CW707R) contact us now, or fill in the enquiry form on the right hand side and we will be in touch shortly.

  Related Specifications Mechanical Properties
Alloy Name BS UNS BS EN Others Ultimate Tensile Strength N/mm² Minimum Yield Strength N/mm² Elongation % Hardness HB  
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