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MIG-welding contact tubes

Oxygen-free copper tubes

Luvata produces oxygen-free copper tubes in standard grade OF-OK, silver bearing oxygen-free copper and certified grade OFE-OK that is compliant with ASTM F68 specification.

High-performance tubes by Luvata offer very high electrical conductivity, toughness and ductility and come in a wide array of sizes and dimensions, including standard wall and heavy wall thickness.

Main applications:

  • power generator phase rings
  • high-vacuum devices
  • high RRR (Residual Resistance-Ratio) cryogenic components
  • wave guides
  • klystrons
  • microwave transmitter


MIG welding tubes

Our offering also includes DHP tubes for MIG welding contact tips. We use a manufacturing process whereby the final drawing operation is through a die and mandrel. Since the mandrel determines the size and shape of the bore, the process guarantees an exceptionally tight diameter and a smooth surface finish for the bore.

Oxygen-free copper

Luvata OF-OK is a high-purity copper with electrical conductivity of at least 100 % IACS. 


Oxygen-Free Copper for Industrial Applications
in English
in Russian


See also our many alloy data sheets in the Document Library

Welding products

In addition to MIG welding tubes, Luvata also offers a wide variety of other welding products.

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