Tungsten Copper Alloy Properties

This refractory metal composite materials are a combination of tungsten combined with copper or silver. The manufacturing process is to press the refractory, sinter the pressed compact at a high temperature, and infiltrate with copper or silver. All this is done under very closely controlled conditions. The result is a relatively hard materials with superior arc and wear resistance, high physical properties at elevated temperatures, and good electrical and thermal conductivity.

Tungsten Copper (WCu) Picture  Tungsten Copper (WCu) Picture  Tungsten Copper (WCu) Picture  Tungsten Copper (WCu) Picture

Tungsten Copper Alloy Advantages

  • Higer thermal conductivity
  • Low thermal expansion
  • High arc resistance combined with good electrical conductivity

Tungsten Copper Alloy Applications

  • Electrodes for resistance welding
  • Heat sinks as passive cooling elements of electronic devices
  • Electrodes in electric spark erosion cutting machines
  • Arcing contacts and vacuum contacts in high and medium voltage breakers or vacuum interruptions

Tungsten Copper Alloy Technical Data

Composition Density Hardness Resistivity IACS Bending Strength
g/cm3≥ HB Kgf/mm2≥ µΩ.cm≤ %≥ Mpa≥
W50/Cu50 11.85 115 3.2 54 --
W55/Cu45 12.30 125 3.5 49 --
W60/Cu40 12.75 140 3.7 47 --
W65/Cu35 13.30 155 3.9 44 --
W70/Cu30 13.80 175 4.1 42 790
W75/Cu25 14.50 195 4.5 38 885
W80/Cu20 15.15 220 5.0 34 980
W85/Cu15 15.90 240 5.7 30 1080
W90/Cu10 16.75 260 6.5 27 1160

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