Tungsten Copper Alloy, WCu

29 Apr.,2024

 

Tungsten Copper Alloy, WCu

Tungsten copper (WCu) alloy is a composite material that combines the thermal conductivity benefits of copper with the low thermal expansion properties of tungsten. By adjusting the tungsten content, its thermal expansion can be tailored to match materials such as silicon (Si), aluminum oxide (Al2O3), and beryllium oxide (BeO). Typically, the copper content ranges from 10% to 50%. This material has high density, excellent heat dissipation, high-temperature strength, and resistance to erosion.

The company is the world’s best Tungsten Copper Alloy Plate supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.

Tungsten Copper Alloy Specifications

  • Surface: No coating, electroplated Ni, Ni-Au, or electroless Ni
  • Tungsten Copper Plate: 300mm x 300mm x 0.5-50mm, customized
  • Tungsten Copper Rod: 2-200mm dia. x L, customized

Tungsten Copper Alloy Composition and Properties

Composites

Nominal Composition
 (% Weight)

Density
(g/cm3, ≥)

Electrical Resistivity
 (20°C, µΩ·cm, ≤)

Electrical conductivity
 (IACS%, ≥)

Hardness(≥)
 Brinell Hardness

Bending Strength

Mpa

Kgf/mm2

Mpa

Kgf/mm2

CuW50

50% Copper
 50% Tungsten

11.85

3.2

54

1128

115

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CuW55

45% Copper
 55% Tungsten

12.3

3.5

49

1226

125

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CuW60

40% Copper
 60% Tungsten

12.75

3.7

47

1373

140

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CuW65

35% Copper
 65% Tungsten

13.3

3.9

44

1520

155

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CuW70

30% Copper
 70% Tungsten

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13.8

4.1

42

1716

175

667

68

CuW75

25% Copper
 75% Tungsten

14.5

4.5

38

1912

195

706

72

CuW80

20% Copper
 80% Tungsten

15.15

5.0

34

2158

220

736

75

CuW85

15% Copper
 85% Tungsten

15.9

5.7

30

2354

240

765

78

CuW90

10% Copper
 90% Tungsten

16.75

6.5

27

2550

260

804

82

We also provide Tungsten Carbide Copper and Tungsten Carbide Silver.

Tungsten Copper Alloy Applications

Tungsten copper heat sinks are extensively used as thermal mounting plates, chip carriers, flanges, and frames for RF and microwave packages, laser diode packages, and complex carriers for optoelectronics amplifiers, receivers, transmitters, tunable lasers, etc.

  • High-performance materials for aerospace
  • Vacuum contact material
  • Electrodes for EDM
  • Electronic packaging materials and heat sink materials
  • Heat Spreader Materials

Tungsten Copper Alloy Packing

Tungsten Copper alloys will be tagged and labeled externally to ensure efficient identification and quality control. Great care will be taken to avoid any damage caused during storage or transportation. They will be packed in a carton or wooden case supported with soft materials to ensure the products will not shift inside the cases.

Properties of Copper Tungsten

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.

Advantages

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

Applications Involving Copper Tungsten

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

Copper Tungsten 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


Tungsten Plates and Bars

They are mainly used for making finished tungsten wire, rods and plates and additives to precision alloys.

Tungsten Rods and Wires

They are mainly for electrical light sources, electrical contacts for vacuum coated films and heating elements, etc.

Are you interested in learning more about Tungsten Bars? Contact us today to secure an expert consultation!