Materiálu, chladiče chladiče
Varme dræn materiale, varme dræn
Heat sinks materiaal, heatsinks
Heat sinks material, Heat sinks
Dissipateurs thermiques matérielle, dissipateurs thermiques
Kühlkörper Material, Kühlkörper
Dissipatori di calore materiale, dissipatori di calore
Varme vasker materiale, kjøleelementer
Material, dissipadores de calor dissipadores de calor
Chiuvete de căldură materiale, chiuvete de căldură
Теплоотводы материала, теплоотводы
Receptores de calor material, disipadores térmicos
Värme avledning material, värme avledning
Isı lavabolar malzeme, ısı lavabolar
Tungsten copper heat sinks

Heat sinks material

Heat sinks material Heat sinks material Heat sinks material

Copper tungsten sheet introduction

1, Main grades: CuW50, CuW55, CuW60, CuW65, CuW70, CuW85
2, Length: 5mm-200mm
3, Width: 5mm-200mm
4, Thickness: 0.1mm-5.0mm
5, Semi-finished or finished (Ni/Au plated) products available

Copper tungsten sheet is a composite of tungsten and copper. The coefficient of thermal expansion (CTE) of the composite can be designed by controlling the content of tungsten, matching that of the materials, such as Ceramics (Al2O3, BeO), Semiconductors (Si), Metals (Kovar), etc. The products are widely application in the fields such as radio frequency, microwave, high power diode packaging and optical communication system.

It owns not only the low expansion of tungsten and high heat conductivity of copper. Its expansion index and heat conductivity can also be changed through changing the content of the materials, which provides convenience to the using of the material. We can supply various specifications and the Copper tungsten sheet with different tungsten proportions.

The advantages of copper tungsten alloy

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

The data of copper tungsten sheet

Ingredient Name

CAS Number

% Weight

Tungsten 7440-33-7 50-90
Copper 7440-50-8 10-50



W 90%
Cu 10%

W 88%
Cu 12%

W 85%
Cu 15%

W 80%
Cu 20%

17.0 16.6 16.4 15.5
Coefficient of Thermal
5.6 5.7 5.8 7.0
Thermal Conductivity
180 188 196 220
Specific Heat Capacity
155 165 175 190
Young’s Modulus
325 315 305 278
Specific Electrical
0.047 0.045 0.042 0.035
Vickers Hardness
300 295 275 255

Related Links

Copper Tungsten Heat Sinks
Copper Molybdenum Heat Sinks
Property Data Sheet of Molybdenum Copper Heat Sinks (PDF)
Property Data Sheet of Copper Tungsten Heat Sinks (PDF)

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