Please breathe deeply …
Our oxygen-free portfolio.

Cu-OFE is a high-purity, oxygen-free copper that does not contain elements that can vaporise in a vacuum. It is very thermally and electrically conductive and it also performs extremely well during hot and cold forming. Cu-OFE also boasts excellent corrosion resistance, especially against atmospheric influences and water, and is therefore insensitive to stress corrosion cracking. 
With a purity level of 99.99%, this material is ideal for use in electrical engineering, the cable industry and vacuum engineering. KME Mansfeld’s Cu-OFE product portfolio includes wire, strip, bars, tubes and sheets.  

Cu-OFE is used mainly for:

  • Electrical engineering
  • Electronics
  • Cable industry
  • Vacuum Engineering


All KME products come in specially made, standard-compliant, secure packaging. This guarantees retention of shape, ensuring that a product’s properties are preserved to the utmost after leaving the factory. Sea-freight packaging is something else we offer as standard. We can assess individual packaging requirements provided they can be presented technically, and offer them for an extra charge.