Tungsten Copper Alloy

High-performance refractory metal composites engineered for extreme thermal, electrical, and mechanical environments. Trusted since 1997.

Explore Products View Applications

ISO9001 Certified

Quality assured manufacturing since 1997 with strict international standards compliance.

Global Supply

Exported to over 60 countries with reliable logistics and technical support.

Custom Solutions

Custom grades, shapes, and sizes tailored to your engineering requirements.

What is Tungsten Copper?

Tungsten Copper (W-Cu) is a pseudo-alloy composite made from tungsten and copper powders, combining the high melting point and strength of tungsten with the excellent electrical and thermal conductivity of copper.

Also known as Elkonite or CuW, this refractory metal composite is ideal for applications requiring resistance to arc erosion, thermal shock, and high current loads.

High arc erosion resistance
Excellent thermal conductivity
Low thermal expansion
High density and strength

Our Tungsten Copper Products

Precision-engineered CuW components in various grades, shapes, and sizes for industrial, electrical, and aerospace applications.

⚡

CuW93

93% Tungsten, 7% Copper – highest density and arc resistance.

Density: ~17.5 g/cm³
Use: High-voltage contacts
Grade: W-Cu93

🔥

CuW90

90% Tungsten, 10% Copper – optimal balance for EDM electrodes.

Density: ~17.0 g/cm³
Use: EDM, welding electrodes
Grade: W-Cu90

🧊

CuW85

85% Tungsten, 15% Copper – excellent thermal management.

Density: ~16.5 g/cm³
Use: Heat sinks, substrates
Grade: W-Cu85

🔌

CuW80

80% Tungsten, 20% Copper – high conductivity with strength.

Density: ~15.8 g/cm³
Use: Switches, circuit breakers
Grade: W-Cu80

🎯

CuW75

75% Tungsten, 25% Copper – enhanced ductility and conductivity.

Density: ~15.0 g/cm³
Use: Plasma spraying, electrodes
Grade: W-Cu75

🛡️

CuW70

70% Tungsten, 30% Copper – ideal for high-current applications.

Density: ~14.2 g/cm³
Use: High-current contacts
Grade: W-Cu70

⚙️

Tungsten Copper Rod

Precision rods for EDM, welding, and industrial tooling.

Diameter: 1–50 mm
Length: Custom
Grades: CuW50–CuW93

📉

Tungsten Copper Plate

Flat stock for heat spreaders, shielding, and substrates.

Thickness: 0.5–20 mm
Size: Up to 300×300 mm
Finish: Sintered, ground

🎯

Tungsten Copper Block

Solid blocks for machining custom components.

Sizes: Custom
Grades: All standard CuW
Use: CNC machining

🎯

Tungsten Copper Tube

Precision tubes for specialized electrical and thermal systems.

OD: 5–100 mm
Wall: 1–10 mm
Length: Custom

Key Material Properties

Engineered for performance under extreme conditions.

Density

Ranges from 10.5 g/cm³ (CuW50) to 17.5 g/cm³ (CuW93).

High density provides excellent radiation shielding and mass stability.

Thermal Conductivity

Up to 210 W/m·K depending on copper content.

Efficient heat dissipation for high-power electronics and thermal management.

Thermal Expansion

CTE: 6–9 ×10⁻⁶/K (adjustable by composition).

Matches semiconductors and ceramics, reducing thermal stress.

Hardness

HV 100–300 depending on grade.

Resists deformation and wear in high-stress environments.

Melting Point

Above 1000°C (no true melting point due to composite nature).

Maintains structural integrity at elevated temperatures.

Electrical Conductivity

Up to 50% IACS (International Annealed Copper Standard).

Efficient current carrying with minimal resistive heating.

Critical Applications

Used in industries where failure is not an option.

EDM Electrodes

W-Cu electrodes offer superior wear resistance and precision in electrical discharge machining.

Vacuum Circuit Breakers

CuW contacts withstand high current interruption without welding or erosion.

Heat Sinks & Substrates

Used in power modules, RF devices, and LED systems for efficient thermal management.

Plasma Electrodes

Resistant to arc erosion and thermal shock in high-energy plasma environments.

Resistance Welding

Electrodes maintain shape and conductivity under repeated high-current pulses.

Gas Discharge Tubes

Sealed CuW components ensure long-term reliability in surge protection devices.

Aerospace & Defense

Used in missile guidance systems, radar, and high-reliability connectors.

Nuclear & Medical

Radiation shielding, X-ray collimators, and high-vacuum components.

Advanced Manufacturing Processes

Precision engineering from powder to final product.

Powder Metallurgy

Tungsten and copper powders are mixed, pressed, and sintered to achieve near-net shapes with controlled porosity.

Infiltration Process

A porous tungsten skeleton is infiltrated with molten copper to achieve high density and uniform distribution.

SPS & HIP

Spark Plasma Sintering (SPS) and Hot Isostatic Pressing (HIP) produce fully dense, fine-grained components.

CNC Machining

Precision machining of sintered blanks into complex geometries with tight tolerances.

Quality Control

Each batch undergoes rigorous testing for density, hardness, composition, and microstructure to ensure compliance with ISO9001 standards.

Frequently Asked Questions

Answers to common inquiries about tungsten copper alloys.

What is the difference between W-Cu and CuW?

There is no technical difference. W-Cu and CuW refer to the same tungsten-copper composite, with naming convention varying by region or context.

Can tungsten copper be welded?

Yes, but it requires specialized techniques such as TIG or resistance welding due to the differing melting points of tungsten and copper.

Is MSDS available for tungsten copper?

Yes, Material Safety Data Sheets (MSDS) are available for all grades. Visit tungsten-copper.com for downloads.

Can you provide custom shapes?

Yes, we offer custom machining services for rods, plates, blocks, tubes, and complex geometries based on your drawings.

What standards do you follow?

Our products comply with international standards including ASTM, ISO, and GB. Custom specifications are also supported.

China Quality Suppliers fobcompany.info

Notice for Buyers: If you are a buyer, the above information is generated by AI collection and does not constitute any advice. If necessary, please visit the corresponding official website.

For Domain Owners: If you are the domain owner and do not want to be included by fobcompany.info, please contact support@fobcompany.info via your corporate email to cancel. We will cancel your inclusion within 3 business days.

如果您是域名所有者不想被fobcompany.info收录请用企业邮箱联系support@fobcompany.info 取消收录我们将在3个工作日取消您的收录

Service Request: If you are other domain and want to be included, please contact support@fobcompany.info

如果您是其他域名合作也请联系support@fobcompany.info