WM7699 Tungsten Copper Composite (W-Cu Composite) CuW70

Tungsten Copper Composite (W-Cu Composite) CuW70 Description

Our Tungsten Copper Composite (W-Cu Composite) CuW70, Grade: Class C, combines the heat resistance of tungsten with the high thermal and electrical conductivity of copper, delivering performance in high-stress and high-heat applications. Manufactured to ASTM B702 standards and available in customised dimensions, this composite ensures reliable service across various industries. Its high density and thermal stability make it especially suitable for use in electrical contacts, EDM electrodes, and other components where precision and longevity are important.

With a 70-30 tungsten-to-copper ratio, CuW70 withstands extreme temperature fluctuations while maintaining structural integrity and minimal deformation. Each product undergoes testing to confirm compliance with international quality benchmarks, ensuring that customers receive consistent, high-performing materials tailored to specific requirements.

Tungsten Copper Composite (W-Cu Composite) CuW70 Applications

CuW70 is a versatile tungsten copper composite that marries the high thermal conductivity of copper with the strength and heat resistance of tungsten. This material is used in applications where effective heat dissipation and durability are essential. With its controlled thermal expansion and mechanical properties, CuW70 is preferred in industries including electronics manufacturing and aerospace technology.

1. Electronics Applications

·        Switch Contacts: CuW70 provides wear resistance and conductivity, making it suitable for high-current circuit breakers and relays.

·        High-Power Semiconductor Packages: The low thermal expansion of W-Cu composite ensures effective heat transfer in sensitive semiconductor environments.

2. Thermal Management Solutions

·        Heat Sinks and Spreaders: CuW70’s thermal conductivity facilitates heat dissipation in high-performance devices.

·        Welding Electrodes: The material’s stability under extreme temperatures makes it suitable for spot and resistance welding operations.

3. Aerospace and Defence

·        Missile and Rocket Nozzles: The composite’s strength at elevated temperatures contributes to reliable thrust performance.

·        Protective Shielding: CuW70’s strength and thermal management properties help protect critical components from intense heat and mechanical stress.

Tungsten Copper Composite (W-Cu Composite) CuW70 Packaging

We package Tungsten Copper Composite (W-Cu Composite) CuW70 in sturdy wooden crates lined with shock-absorbent material for protection. Each component is vacuum-sealed to keep dry and minimise oxidation risks. A corrosion-inhibiting coating is applied to all surfaces to further protect against moisture and contaminants. Customisation options, including specialised crate sizes and additional protective layers, are available to meet specific requirements and ensure product integrity during transportation and storage.

Packaging: Vacuum sealed, Wooden Box, or Customised.

Tungsten Copper Composite (W-Cu Composite) CuW70 FAQs

Q1: What are the key material properties of Tungsten Copper Composite (W-Cu Composite) CuW70?

A1: Comprising approximately 70% tungsten and 30% copper by weight, W-Cu Composite (CuW70) exhibits high density, good thermal and electrical conductivity, and wear resistance. Its hardness ranges from around 150 to 180 HV, while its thermal conductivity can reach 180–200 W/m·K. This material demonstrates a low coefficient of thermal expansion, making it suitable for high-temperature and high-stress applications.

Q2: How can this tungsten copper composite be processed or fabricated?

A2: CuW70 is manufactured primarily through powder metallurgy techniques, involving the blending of tungsten and copper powders, followed by pressing and high-temperature sintering to achieve near-net shape. In some cases, infiltration is used to saturate a sintered tungsten skeleton with molten copper. Post-sintering operations such as hot isostatic pressing, machining, and EDM can be applied to refine dimensional accuracy and surface finish.

Q3: Which quality standards and certifications apply to Tungsten Copper Composite (W-Cu Composite) CuW70?

A3: CuW70 production and testing typically follow recognised international standards to ensure material reliability and consistency. Manufacturers generally comply with ISO 9001 for quality management, while industry-specific specifications such as ASTM B702 or ASTM B777 may outline chemical composition, density, and mechanical properties. Certain aerospace, defence, and electronic applications may also require compliance with additional certifications, ensuring product integrity and traceability throughout the supply chain.

Related Information

1. Manufacturing Process

The Tungsten Copper Composite (W-Cu Composite) CuW70 in Grade Class C undergoes a controlled powder metallurgy route to achieve its customised shape and dimensions. This involves blending finely milled tungsten and copper powders in precise ratios, followed by pressing under high pressure. Sintering at elevated temperatures ensures bonding between the metals, resulting in a dense structure that can be further shaped or machined to meet specified requirements.

Complex designs are achievable due to the material’s ductility and shaping methods. Specialist techniques such as infiltration or hot isostatic pressing may also be used to tailor the composite to exact needs. Whether the final form is a small part with features or a larger component with design parameters, engineering oversight guarantees quality and performance in every customised dimension.

2. Applications in Advanced Industries

In sectors such as aerospace, electronics, and power generation, the durability of CuW70 Class C parts proves valuable. This composite, available in customised shapes, is often chosen when both thermal conductivity and low thermal expansion are critical. Components made with tungsten copper enhance system stability, manage heat efficiently, and extend operational lifetimes in challenging conditions.

W-Cu Composite also finds uses in plasma-facing applications and specialised tooling within medical equipment. The customised dimensions allow for integration into complex machinery, enabling high-precision performance in harsh environments. Due to its reliability, CuW70 has become a sought-after choice for mission-critical systems, where functionality and long-term dependability are important.