Confuse those thieves

Bimetallic conductors offer an alternative to solid copper. They resemble copper because a steel or aluminium core has had a metallurgically bonded outer layer of copper applied which cannot be recycled and is difficult to saw off. This makes any stolen material only worth the value of the base metal, ie steel or aluminium. The copper cladding thickness remains constant, measuring 10% of the overall product diameter and yields a composite conductivity of 40% IACS (International Annealed Copper Standard). Bimetallic conductor is available as plain wire or in stranded configurations in various sizes. It can be coated in any colour in either PVC (polyvinyl chloride) or polyethylene as a deterrent to thieves.



  • Have the strength of the steel.
  • Retain the conductivity and corrosion resistance of copper.
  • Will not break, crack, flake or peel.
  • Are suitable for all applications where copper is used.
  • Have a low scrap value.


Take note

  • The high value of copper has made it a target for thieves who sell on to unscrupulous scrap metal traders.
  • The value of copper is dependent on its purity.
  • Bimetallic conductors ensure that the purity of the copper is adversely affected, making scrap value low – but not affecting performance.


Published as: Bimetallic conductors

By D Thorpe, Exoweld, Electricity+Control: June 2011 (pg 8)