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Low Thermal Expansion Polished Tungsten Copper Alloy Ring On Sale

Categories Tungsten Copper Alloy
Model Number: Customized
Place of Origin: China
MOQ: 10 Kilograms
Payment Terms: T/T
Supply Ability: 5000 kilograms per month
Delivery Time: 20 days after order
Packaging Details: Exported plywood case with foam inside
Brand Name: SANHUI
Certification: ISO9001
Price: Negotiable
Material: Tungsten copper alloy
Application: Electrical Contacts
Shape: Customized
Dimensions: customized
Surface: Polished
Standard: ASTM
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Low Thermal Expansion Polished Tungsten Copper Alloy Ring On Sale

Low Thermal Expansion Polished Tungsten Copper Alloy Ring On Sale


Tungsten Copper Alloy Introduction:

Tungsten copper alloy is popular because of its combination of unique material properties. A high level of temperature resistance is one of the most important advantages of tungsten, while the copper content increases the electrical and thermal conductivity. Contact materials made of WCu are also characterized by the following properties:

  • Good electrical conductivity
  • Excellent strength
  • Very good machinability
  • Good thermal conductivity
  • Low thermal expansion
  • High arc erosion resis

The Parameter of Low Thermal Expansion Polished Tungsten Copper Alloy:

Code No.Chemical Composition %Mechanical properties
CUImpurityWDensityRES( cm)
(g/cm3 )HardnessConductivityTRS/ Mpa
HBIACS/ %
CuW(50)50+2.00.5Balance11.851153.254
CuW(55)45+2.00.5Balance12.31253.549
CuW(60)40+2.00.5Balance12.751403.747
CuW(65)35+2.00.5Balance13.31553.944
CuW(70)30+2.00.5Balance13.81754.142790
CuW(75)25+2.00.5Balance14.51954.538885
CuW(80)20+2.00.5Balance15.15220534980
CuW(85)15+2.00.5Balance15.92405.7301080
CuW(90)10+2.00.5Balance16.752606.5271160
No arc erosion: With the right mix of materials.
Content-of-tungsten_burn-off-volume.jpg

By choosing the right mixture of tungsten and copper, we are able to influence the product's arc erosion properties. At a tungsten content of 80 %, we achieve the lowest arc erosion rates. Depending on the voltage and current intensity as well as on economic considerations, we can vary the tungsten content between 60 and 90 % to meet the exact needs of your application.

Good conductivity: High density makes it possible.

The denser the material, the better it is at conducting electricity and heat. One trick for producing WCu in higher densities is to add nickel during the sintering process. However, too much nickel has a negative influence on the conductivity of the material. Take advantage of our employees' experience and benefit from an optimum balance between material density and conductivity.

Content-of-Nickel.jpgDensity_Sintering_time.jpg

Greater endurance: With a well defined grain structure.

FG20A20NiFA20Ni
FG20.jpgAK20NiF.jpgAK20Ni.jpgbar.jpg200 µm

The higher the applied voltage is, the more resistant to arc erosion the contact material must be. SANHUI is able to modify the arc erosion resistance of WCu by varying the grain size of its tungsten. For particularly high voltage ranges, we use materials with an extremely fine grain size.


Product picture:

China Low Thermal Expansion Polished Tungsten Copper Alloy Ring On Sale factory
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