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Zirconium Copper

Superior brazing and weldability

The excellent conductivity of copper can be maintained while raising the softening temperature dramatically and increasing strength with the small addition of zirconium.  Zirconium copper can be brazed in a reducing environment without dimension changes or internal porosity and offers immunity to hydrogen embrittlement.

Zirconium copper can be easily welded and is well suited for electron beam welding.

Advantages of zirconium copper include:

  • Higher softening temperature
  • Increased strength
  • Improved conductivity
  • Fine grain size
  • Connectors
  • Lead frames
  • Continuous casting moulds
  • Spot welding electrodes
  • Wheels and adaptor shanks
  • MIG/MAG welding contact tips
  • Commutator bars
  • Radial stalks for generator rotors

Luvata offers a full range of zirconium copper products including:

  • Rods
  • Bars

 

Luvata Alloy Composition Electrical conductivity
IACS%
Hardness
HV
Corresponding alloys
EN ASTM DIN
CuZr Zr 0,15% 92 130 CW 120C C15000 17666 CuZr
CuCrZr Cr 0,8%, Zr 0,15% 75 150-180 CW 106C C18150 17666 CuCrZr

 

We also supply spot welding electrodes.



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