Copper Tungsten Alloy

Consisting of pure tungsten (W) powder suspended in a matrix of copper (Cu), these alloys are known for good thermal and electrical conductivity, low thermal expansion, and resistance to erosion from arcing.  Thus, they are often used as electrical contacts, particularly in high voltage applications. Most sizes and shapes can be supplied with short lead times. We can also manufacture parts from these materials to your specifications.

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Copper Tungsten Alloy Chemical Composition & Properties Chart

Composition Density
gr/cc
IACS
%
Hardness
HB Kgf/mm2
Bend Strength
MPa
W55 Cu45 12.30 49 125
W60 Cu40 12.75 47 140
W65 Cu35 13.30 44 155
W70 Cu30 13.80 42 175 667
W75 Cu25 14.50 38 195 706
W80 Cu20 15.15 34 220 736
W85 Cu15 15.90 30 240 765
W90 Cu10 16.75 27 260 804