Powder Metals Data Sheets

Copper Infiltrated Tungsten

Wah Chang (WC) manufactures tungsten-copper composite material in a nominal 90/10% composition. It is manufactured by pressing tungsten powder, sintering to a strong matrix, and filling the pores by infiltrating with liquid copper. The resultant composite retains the toughness of the tungsten matrix, while the copper affords machinability and excellent thermal and electrical properties.
WC material has been used for rocket nozzle and thrust vectoring components since the 1960's due to its toughness and ability to withstand extreme shock and erosion at very high temperatures. Other uses for these materials include thermal heat sinks for electronics, demanding electronic contact applications, resistance welding, and EDM electrodes. This product is distinguished from other manufacturer's tungsten-copper by a superior tungsten matrix and a very low porosity.

Typical Properties

Other compositions including W-Ag and Mo-Cu are also available on special order. Components and/or blanks are made to order, availability of material in stock is limited.