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Tungsten Copper Alloy Electrical Contacts

Tungsten copper alloy electrical contacts are subjected to extreme mechanical and thermal stresses during operation. For fractions of a second, temperatures rise to several thousand degrees as a result of the arcing. Our copper tungsten alloy materials are used owing to their unique physical properties.

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Chemical Composition % Mechanical properties
Code No. CU Impurity W Density
(g/cm3 )
Hardness HB RES( cm) Conductivity IACS/ %  TRS/ Mpa 
     
Cu W(50) 50+2.0 0.5 Balance 11.85 115 3.2 54
Cu W(55) 45+2 0.5 Balance 12.3 125 3.5 49
Cu W(60) 40+2.0 0.5 Balance 12.75 140 3.7 47
Cu W(65) 35+2.0 0.5 Balance 13.3 155 3.9 44
Cu W(70) 30+2.0 0.5 Balance 13.8 175 4.1 42 790
Cu W(75) 25+2.0 0.5 Balance 14.5 195 4.5 38 885
Cu W(80) 20+2.0 0.5 Balance 15.15 220 5 34 980
Cu W(85) 15+2.0 0.5 Balance 15.9 240 5.7 30 1080
Cu W(90) 10+2.0 0.5 Balance 16.75 260 6.5 27 1160

Tungsten Copper alloy electrical contacts is mainly used for various types of high voltage electrical switch electrical contact. Because of the high WCu composite ablative properties of compressive strengthand electrical resistance, so that the pressure level of highvoltage electrical switches and the use of power continue is to improve and become high voltage electrical switches in the indispensable key material.  

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