Material Introduction

Tungsten Copper

Material Introduction


Tungsten-copper alloys are composed of tungsten and copper. The copper content in commonly used alloys lies between 7% and 50%. Combining the advantages of both tungsten and copper, they can be used in military materials, high-voltage switching materials, electrical machining electrode materials and microelectronic packaging materials; they are widely widely used as parts and components in machinery, electric power, electronics, metallurgy, aerospace and other industries.

We produce tungsten-copper alloy materials to any ratio, and obtain the required material properties by adjusting the ratios of tungsten and copper.

 

Specifications and Performance


Typical properties of tungsten copper composite materials

 

Grade

Chemical composition(wt%)

Density

Hardness

Thermal expansion coefficient

Thermal conductivity

Resistivity

Conductivity

Bending strength

 

Cu

Total Impurities

W

g·cm-3

HB

Room temperature~800℃
×10-6/K-1

Room temperature/W(m·K)-1

μΩ·cm

%IACS

MPa

W50Cu50

50±2.0

≤0.5

Margin

≥11.85

≥100

 ≤13.3

≥290

≤3.2

≥54

--

W55Cu45

45±2.0

≤0.5

Margin

≥12.30

≥110

 ≤12.4

≥270

≤3.5

≥49

--

W60Cu40

40±2.0

≤0.5

Margin

≥12.75

≥130

 ≤11.6

≥250

≤3.7

≥47

--

W65Cu35

35±2.0

≤0.5

Margin

≥13.30

≥140

 ≤10.4

≥230

≤3.9

≥44

--

W70Cu30

30±2.0

≤0.5

Margin

≥13.80

≥160

 ≤9.4

≥220

≤4.1

≥42

≥790

W75Cu25

25±2.0

≤0.5

Margin

≥14.50

≥180

 ≤8.4

≥200

≤4.5

≥38

≥885

W80Cu20

20±2.0

≤0.5

Margin

≥15.15

≥197

 ≤7.7

≥180

≤5.0

≥34

≥980

W85Cu15

15±2.0

≤0.5

Margin

≥15.90

≥240

 ≤7.2

≥170

≤5.7

≥30

≥1080

W90Cu10

10±2.0

≤0.5

Margin

≥16.75

≥260

 ≤6.7

≥160

≤6.5

≥27

≥1160

W93Cu7

6-9

≤0.5

Margin

≥17.00

≥280

 ≤6.4

≥140

≤6.5

≥27

--

 

Fabrication Process


Advantage


Due to the incompatibility of tungsten and copper, the tungsten-copper alloy features the low expansion, high wear resistance, and high corrosion resistance of tungsten, along with the high electrical and thermal conductivity of copper. It is thus suitable for various forms of mechanical processing. Therefore, the tungsten copper alloy is widely used for its high strength, high specific gravity, high temperature resistance, arc ablation resistance, good electrical conductivity, good processing performance, good arc breaking performance, good electrical conductivity, good thermal conductivity, small thermal expansion and perspiration cooling.