Products Description
WCu round bar is a composite metal of tungsten and copper, which combines many excellent properties of metal tungsten and copper, among which tungsten has a high melting point and high density; copper has excellent electrical and thermal conductivity.
The composition ratio of the tungsten copper round bar can be adjusted to meet different needs, with common ratios including 75/25, 80/20, and 90/10. The production process usually involves steps like isostatic pressing, high-temperature sintering of the tungsten framework, and copper infiltration.
Tungsten-copper alloy (composition generally ranges from WCu7 to WCu50) has uniform microstructure, high-temperature resistance, high strength, arc ablation resistance, and high density; moderate electrical and thermal conductivity, widely used in military high-temperature resistant materials, electrical alloys for high-voltage switches, Electrodes for electrical processing and microelectronic materials are widely used in aerospace, aviation, electronics, electric power, metallurgy, machinery, sports equipment, and other industries as parts and components.
Features And Application
Features
High thermal and electrical conductivity: The natural conductivity of copper is enhanced by adding tungsten, making the alloy excellent at conducting heat and electricity.
Excellent mechanical properties: Due to tungsten's high melting point and strength, the alloy has high mechanical strength and hardness, allowing it to perform well under high-stress conditions.
Good wear and erosion resistance: In environments with friction or corrosion, tungsten-copper alloy maintains its shape and functionality.
Strong machinability: Tungsten-copper alloy can be precisely machined into complex shapes to meet specific application needs.
Low thermal expansion coefficient: Compared to pure copper, tungsten-copper alloy has a lower thermal expansion coefficient, meaning it maintains dimensional stability even under temperature changes.
Applications
Aerospace Applications
Rocket engine components: Tungsten-copper round bars are widely used in key rocket engine parts like nozzle liners and tail fins. Thanks to their high-temperature resistance and thermal conductivity, they can withstand extreme heat and pressure. For example, rocket nozzle liners must stay strong and conduct heat well to avoid damage from hot gas flows.
Satellite components: In satellite thermal management systems, tungsten-copper alloy is used for heat sinks. Its high thermal conductivity and low thermal expansion help control internal heat, keeping electronic devices stable in extreme temperatures.
Power & Electronics Industry
High-voltage switch arc contacts: Tungsten-copper round bars are ideal for making arc contacts in high-voltage switches. They handle intense heat from electric arcs due to their high melting point and conductivity, extending the switch's lifespan. For instance, in circuit breakers, tungsten-copper electrodes quickly extinguish arcs for safer operation.
Electronic packaging & heat sinks: Tungsten-copper alloy is used in electronic packaging and heat sinks. It efficiently transfers heat away from components, preventing overheating. Its low thermal expansion also reduces stress between parts, improving device reliability.
Machining
EDM electrodes: Tungsten-copper round bars are perfect for electrical discharge machining (EDM) electrodes. Their conductivity and heat resistance ensure stable, high-precision cutting. For example, in mold making, they help create complex shapes with minimal wear.
Cutting tools: Due to their hardness and wear resistance, tungsten-copper alloys are used in milling cutters and lathe tools. They maintain sharpness at high speeds, boosting efficiency and tool life.
Automotive Manufacturing
Engine parts: Tungsten-copper round bars are used in high-temperature engine components like spark plug electrodes. They withstand heat and pressure while ensuring efficient spark transmission for combustion. They're also used in exhaust valve seats to enhance durability.
Braking systems: Tungsten-copper alloy improves brake pads and discs. Its wear resistance and heat stability enhance safety, especially during high-speed or frequent braking.
Sports Equipment
Golf club heads: Tungsten-copper's high density and strength make it ideal for golf club heads. The added weight increases swing stability and distance, while durability ensures long-term performance.
Other sports gear: It's also used in tennis racket weights, bicycle brake parts, and other high-performance equipment where density and strength matter.
Main Properties of alloy copper tungsten around bar
|
Content (%weight) |
Density (g/cm³) |
Hardness (HRB) |
Conductivity (%IACS) |
|
W60%, balance Cu |
13.30 |
76 |
47 |
|
W70%, balance Cu |
13.90 |
82 |
44 |
|
W75%, balance Cu |
14.50 |
88 |
42 |
|
W80%, balance Cu |
15.20 |
100 |
38 |
|
W85%, balance Cu |
16.10 |
240HB |
33 |
|
W90%, balance Cu |
16.90 |
260HB |
28 |
FAQ
Are you a factory or manufacturer?
A: Yes, we are a factory but generally, we use our trading company to handle the business abroad. It will be convenient to receive the remittance and arrange the shipment.
What is the delivery method?
A: Generally, we send cargo by UPS, DHL or FedEx. Also, we can send by sea to seaport or by air to the closest airport.
Why is your product so cost-effective?
A: We cut out the middlemen in the end-to-end manufacturing process. Rather than obtaining semi-finished goods from other suppliers, we obtain our raw material of APT powder directly from its source.
Do you do spot quality inspection or full inspection?
A: 100% full inspection. Inspectors will check the finished product individually, to ensure they adhere to all parameters. All unqualified products are discarded.
How do you ensure your lead time?
A: We have an efficient Order Management System, from material preparation to machining, and finally to a full inspection. Every stage of production is strictly monitored and controlled to give you an accurate delivery time.
What is the MOQ of Alloy Copper Tungsten Around Bar?
A: Depends on quantity, generally, no MOQ limit.
How to pay for it?
A: A bank transfer (T/T) will be acceptable.
What is the delivery time?
A: around 7-20 days which depends on the quantity and production.
What is kind of the package?
A: Generally, we use a carton case or plywood case with protective material inside to ensure the save of cargo
What is the lead time?
A: from order placed to cargo receiving will take around 10-25 days.
What is tungsten-copper alloy?
Tungsten-copper alloy is a composite material made of tungsten and copper. It combines tungsten's high strength and heat resistance with copper's excellent conductivity.
What are the common tungsten-copper ratios?
Popular ratios include W70-Cu30, W75-Cu25, W80-Cu20, and W90-Cu10, depending on application needs.
How is tungsten-copper alloy made?
It is produced through processes like powder pressing, sintering, and copper infiltration to ensure high density and performance.
Why choose tungsten-copper over pure copper or tungsten?
It offers better heat resistance than copper and higher conductivity than pure tungsten, making it ideal for extreme conditions.
Can tungsten-copper alloy be customized?
Yes, its composition, size, and shape can be adjusted based on specific requirements.
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