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Tungsten copper alloy (Copper Tungsten Alloy, CuW, or WCu) is a pseudo-alloy of copper and tungsten. As copper and tungsten are not mutually soluble, the material is composed of distinct particles of one metal dispersed in a matrix of the other one. The alloy combines the properties of both metals, resulting in a material that is heat-resistant, ablation-resistant, high thermal and electrical conductivity, and easy to machine. Parts are made from the WCu alloy by pressing the tungsten particles into a desired shape, sintering the compacted part, then infiltrating with molten copper. Sheets, rods and bars of the alloy are available as well.

Main Composite and Properties

Tungsten copper parts provided by us are all with these properties. The electrical and thermal properties of the alloy vary with different proportions. Copper increases the thermal conductivity, which plays a huge part when being used in circuit breakers. Electrical resistivity with an increase in the percentage of tungsten present in the alloy, ranging from 3.16 at 55% tungsten to 6.1 when the alloy contains 90% tungsten. An increase in tungsten leads to an increase in ultimate tensile strength up until the alloy reaches 80% tungsten and 20% copper with an ultimate tensile strength of 663 MPa. After this mixture of copper and tungsten, the ultimate tensile strength then begins to decrease fairly rapidly.

Applications

Copper tungsten alloy is used in a product or part requires high heat resistance, low thermal expansion and high electrical or thermal conductivity. Tungsten copper is used to fabricate engines and electrical devices. It is also used in the fields of aviation and spaceflight. Electrodes, refractory parts, heat sinks, rocket parts and electrical contacts are all made by copper tungsten alloy. The alloy is also made into sheet metal, tubing and plate metal. Copper tungsten alloy is used to make contacts for both high and medium voltage electrical devices, and for high speed steel devices and switches.

WCu rods have been widely used in Spark Erosion and Electrical Discharge Machining (EDM) process. In general, this process is used with graphite, but tungsten has a high melting point. This allows the CuW electrodes to have a longer service life than the graphite electrodes. This is crucial when the electrodes have been processed with complex machining. Since the electrodes are susceptible to wear the electrodes provide more geometrical accuracy than the other electrodes. These properties also let the rods and tubes manufactured for spark erosion be smaller in diameter and longer in length since the material is less likely to chip and warp.

Packing Details :
Inner package:paper or plastic bag or sealing bag,PE foam,
Outer package:thick carton or wooden box or iron drum
Delivery Details : 3-30 days after order ,express by DHL,TNT,UPS,SF etc. door to door.
Package sample as below, we will use difference pack method as difference products :

High quality and competitive price , years of experience factory directly supply.

Supply difference maching parts ad drawing for customer, with fast delivery.

24 hours online service, answer question , quote , best after-sales service.

Equipment Section and producing department:

   Visit company and negotiate details

             Confirm the order in factory

                      On the Material Fair

Q:What's your main products?
A:Tungsten /molybdenum /tungsten alloy products.

Q: Why should I choose your company for partner?
A: As you know, the raw material of low price makes your product more competitive in the market. That means it will make your sell much easier.

Q:Do you use first class tungsten /molybdenum powder?
A:We only use first class tungsten / molybdenum powder,no recycle.

Q: Delivery tungsten alloy products can be shorter?
A: Usually we make sure all the order delivery with 30 days.Tungsten copper 15 days.

Q:Price can be cheaper?
A: We use first class tungsten powder,the cost is high.

Q:Tungsten /Molybdenum products MOQ?
A:Please email to inquiry per different products.

Q:Tungsten /Molybdenum sample?
A:Sample available,within 7~14 days.

Welcome send us your drawing ,We not only produce the standard types, but also the tungsten/molybdenum/tungsten copper/tungsten carbide parts based on your designs. We have rich experience on this and a big part of our product is from our clients' designs. We can provide the technical support, like how to select the right grade of tungsten to match your using purpose, we will make it very easy and simple to do business with us: