Tungsten Copper Alloy Tube | WCu / CuW Tubing

Product Introduction

Tungsten Copper Alloy Tube (WCu Tube / CuW Tube) is a high-performance composite metal tube manufactured through professional powder metallurgy and copper infiltration technology. Combining the ultra-high temperature resistance, arc erosion resistance and structural stability of tungsten with the excellent thermal conductivity and electrical conductivity of pure copper, WCu tube achieves a perfect balance between mechanical strength and conductive heat-dissipating performance.

All our tungsten copper tubes are strictly produced and inspected according to GB/T 8320-2017 (National Standard for Copper-Tungsten Electrical Contact Materials) and ASTM B702 international standard. With stable microstructure, uniform density and reliable electrical and thermal performance, our CuW tubular products are widely recognized in high-voltage electrical, EDM machining, semiconductor thermal management and aerospace industries.

Zhuzhou Jiuding Metal Technology Corp Ltd provides full-grade tungsten copper tubes including CuW80, CuW75, CuW70 and CuW65. All sizes, wall thicknesses and surface finishes can be customized according to customer drawings and technical requirements.

Product Features

• Double Standard Compliance: Fully conforms to GB/T 8320-2017 and ASTM B702, ensuring consistent and qualified material performance for global customers.

• Superior Arc Erosion Resistance: High tungsten content structure greatly resists arc ablation and high-current impact, ideal for high-voltage switching components.

• High Thermal & Electrical Conductivity: Infiltrated copper phase provides fast heat dissipation and stable electrical conduction, avoiding local overheating during long-term operation.

• Low Thermal Expansion: Maintains stable dimensional accuracy under repeated high and low temperature cycles, no deformation or failure.

• Uniform & Dense Microstructure: Powder metallurgy forming + vacuum infiltration ensures no porosity, uniform density and stable mechanical properties.

• Precision Machinable: Supports fine turning, boring, grinding and polishing to achieve ultra-tight tolerance for tubular precision parts.

• Complete Certification Support: EN10204 3.1 material certificate and COA test reports are available for every batch.

Material Grades & Standard Properties (GB/T 8320-2017)

All technical parameters below strictly follow GB/T 8320-2017 national standard and match ASTM B702 international industry requirements.

Technical Specifications

Application Scope

• High & Medium Voltage Electrical Industry: Vacuum interrupter tubes, switch contact tubes, circuit breaker conductive components

• EDM Machining Industry: EDM electrode tubes, guide tubes, precision machining conductive sleeves

• Power Electronics & Semiconductor: Thermal spreader tubes, cooling channel tubes, high-power heat dissipation components

• Welding Industry: Resistance welding electrode tubes, welding shank sleeves

• Aerospace & Military: High-temperature conductive structural tubes, thermal control components

Production Process

Our tungsten copper alloy tubes adopt mature and stable powder metallurgy + vacuum copper infiltration process. The whole production process includes powder mixing, pressing, high-temperature sintering, copper infiltration, heat treatment, precision CNC machining and final inspection. Strict process control ensures zero porosity, uniform alloy distribution, stable density and excellent overall performance, fully meeting GB/T 8320-2017 and ASTM B702 standard requirements.

Why Choose Zhuzhou Jiuding Metal Technology Corp Ltd

Located in Zhuzhou, the world-famous tungsten industrial base, we are a professional manufacturer focused on tungsten copper alloy materials and precision finished parts. We have independent powder metallurgy production lines, infiltration workshops and precision CNC machining equipment.

We strictly implementGB/T 8320-2017 and ASTM B702 dual standards for all WCu tube products, providing stable quality, full technical documents and complete batch test reports. We support OEM and ODM customized production according to customer drawings, covering non-standard sizes, special wall thicknesses and customized surface requirements.

Our tungsten copper tubes have been exported to Europe, America, Southeast Asia and other regions, winning long-term trust from electrical manufacturers, EDM factories and new energy enterprises.

FAQ

Q1: What standards do your tungsten copper tubes comply with?
A: All products are manufactured and tested in accordance with GB/T 8320-2017 (Chinese national standard) and ASTM B702 (American industry standard).

Q2: Can you provide custom-sized WCu tubes?
A: Yes. We customize outer diameter, inner diameter, wall thickness, length and surface finish based on customer drawings.

Q3: Can you provide material test reports?
A: We supply EN10204 3.1 certification and COA chemical & physical property test reports for every batch.

Q4: Which grade is best for high voltage contact use?
A: CuW80 (W80Cu20) is the best choice for high voltage and vacuum contact parts due to its highest arc erosion resistance.

Q5: What is your delivery term?
A: Standard sizes in stock, custom precision tubes25~30 working days.