Tungsten Copper Alloy Rods

Copper tungsten (CuW, WCu) has been recognized as a highly conductive and erasion resistant composite material that is extensively used as copper tungsten electrodes in EDM machining and resistance welding applications, electrical contacts in high voltage applications, and heat sinks and other electronic packaging materials in thermal applications.

The most common tungsten/copper ratios are WCu 70/30, WCu 75/25, and WCu 80/20. Other common compositions include tungsten/copper 50/50, 60/40, and 90/10. The range of available compositions is from Cu 50 wt.% to Cu 90 wt.%. Our tungsten copper product range includes copper tungsten rod, foil, sheet, plate, tube, tungsten copper rod, and machined parts.

Thermal and Electrical Properties: Tungsten-copper alloy rods have good thermal and electrical conductivity. For example, WCu 70/30 has a thermal conductivity of 200 W/m·K and an electrical conductivity of 44-52% IACS. As the copper content increases, the electrical and thermal conductivity usually improves, but the strength and hardness decrease.

Mechanical Properties: Tungsten-copper alloy rods have high tensile strength and hardness. For instance, WCu 90/10 can reach a tensile strength of 700 MPa. This alloy also has a low thermal expansion coefficient, so it maintains dimensional stability in high-temperature environments.

Wear and Arc Resistance: Tungsten-copper alloy rods are highly wear-resistant and arc-resistant. This makes them perform well in applications like electrical discharge machining and welding electrodes. They can withstand high current and voltage while resisting arc erosion.

Machinability: Tungsten-copper alloy rods are easy to machine and can be shaped using traditional mechanical processing methods.

Electronics and Electrical Applications: Tungsten-copper alloy rods are widely used in the electronics and electrical industry. They are used to make arc contacts for high-voltage switches, vacuum contacts, and electrodes for electrical discharge machining (EDM). They are also used in heat sinks and packaging materials for electronic devices.

Aerospace and Defense Applications: In aerospace and defense, tungsten-copper alloy rods are used to make rocket nozzle liners, missile components, and satellite systems. These parts need to maintain structural strength under extreme temperatures and stress.

Automotive Applications: In car manufacturing, tungsten-copper alloy rods are used for welding electrodes and high-temperature molds. They can withstand high heat and pressure, ensuring reliability and efficiency in production.

Medical Applications: Tungsten-copper alloy rods are also used in medical devices, such as radiation shielding. Their high density and durability help block harmful radiation effectively.

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 Tungsten Copper Alloy Rods?

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.

How does copper content affect performance?
More copper improves conductivity but reduces strength and hardness.

Why are they good for high-temperature applications?
They resist heat, maintain shape under stress, and conduct heat well.

Are they easy to machine?
Yes, they can be shaped using standard machining methods.

How do they compare to pure tungsten or copper?
They balance tungsten's strength and copper's conductivity, making them more versatile.

Can they be customized for specific needs?
Yes, adjusting the tungsten/copper ratio changes properties for different uses.

Are they corrosion-resistant?
They resist wear and arc damage but may need coatings in harsh environments.

What sizes and shapes are available?
They come in rods, bars, and custom forms, with various diameters and lengths.

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