Tungsten Copper Alloy

Tungsten Copper Alloy Description

Tungsten copper is a strong refractory metal materials manufactured by a strictly controlled process involving pressing, sintering and infiltrating with copper. It is highly resistant to heat, electric arc, wear and deformation at high temperature welding, flash butt and spot welding. It also has excellent electrical and thermal conductivity. The copper content of commonly used tungsten copper alloy is 10% to 50%. The tungsten copper alloy has a wide range of high-temperature applications such as arc ablation resistant high-voltage electrical switches, rocket nozzle throat linings and tail rudders.

We also provide tungsten carbide copper material.

Grades of Tungsten Copper Alloy

CuW50 and CuW55, these composites have the lowest tungsten contents. They are both good switching and contact materials for oil filled devices. CuW55 is also used for arcing contacts in oil circuit breakers and arcing edges of selectors and switchblades in transformer tap changers.

CuW65 and CuW70, these composites are used as contact materials in severe arcing applications including gas, oil and some air circuit breakers. They are also used for arcing edges on selectors and reversing switch blades.

CuW75 and CuW80, these composites are used as contact materials under extreme arcing conditions. Applications include arcing contacts in gas and oil circuit breakers, contacts and transformer tap changers, arcing plates and arc runners in power switching equipment.

CuW85 and CuW90, these composites have the highest tungsten content. They are used as contact materials where resistance to contact welding, sticking and arc erosion are critical. They also provide satisfactory heat and current interruption capabilities. Typical applications are power vacuum switches and high power spark gap electrodes, etc.

Specification of Tungsten Copper Alloy

Tungsten Copper Product Specification

Tungsten Copper Alloy Applications and Related Industries

● Electrical contacts

● Heat sinks

● Electrodes for EDM and ECM

● Research & Laboratory

Chemical Identifiers

Tungsten Copper Alloy Properties (Theoretical)