| Customization: | Available |
|---|---|
| Type: | Cu (Copper/Copper-Alloy Welding Electrode) |
| Material: | Wcu 70/30, Wcu 75/25, Wcu 80/20, Wcu 90/10 |
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Xi'an Kefeng Powder Metallurgy Co., Ltd, as a manufacturer, Copper Tungsten alloy is one or our products, we main produce Tungsten alloy 25years, most of products are exporting other countries, such as UAS, UK, Finland, Italy, India, Franch..., Copper tungsten (CuW, WCu) has been regarded as a highly conductive and erasion resistant composite material that is extensively used as copper tungsten electrodes for EDM machining and resistance welding, 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, WCu 80/20 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. We are capable of producing copper tungsten plates and sheets with a range of thickness from 0.05mm to 50mm. We also offer copper tungsten rods with diameters from 1.0mm to 127mm or more.
As an ISO-accredited tungsten alloy products manufacturer, Kefeng is capable of offering various types of tugnsten copper that meet a consistently high standard. We have the capacity to provide a reasonable lead time and handle large-volume sale. We produce various sizes, shapes and
inished parts in forms as wire, rod, bar, sheet, ,strip, foil, sheet, plate, tubing, blanks, semi-finished and custom finished parts or according with
ustomer's drawing paper.
| Composition | Density (g/cm3) | Electrical Conductivity (IACS% Min.) | Thermal Conductivity (W/m-K-1) | Hardness (HRB Min.) |
| WCu 70/30 | 14.0 | 52.1 | 230 | 95 |
| WCu 75/25 | 14.8 | 45.2 | 220 | 99 |
| WCu 80/20 | 15.6 | 43 | 200 | 102 |
| WCu 90/10 | 16.75 | 32.5 | 180 | 107 |
When processing the copper tungsten alloy products, the purity tungsten is pressed, sintered and infiltrated by the oxygen-free copper after
the consolidating steps which represents a homogeneous microstructure and low level of porosity. The combination of copper's conductivity with tungsten's high density, hardness and high melting point produces a composite with many preeminent properties of both elements. Copper-infiltrated tungsten boasts such properties as high resistance to high-temperature and arc-erosion, excellent thermal and electrical conductivity and a low coefficient of thermal. The physical and mechanical properties and melting point of tungsten copper material will be positively or oppositely affected by varying the amount of copper tungsten in the composite. As the copper content gradually increases, the electrical and thermal conductivity and thermal expansion exhibit a tendency of being stronger. But the density, electrical resistance, hardness and strength will be weakened when infiltrated with less amount of copper. In the end, an appropriate chemical composition is the utmost importance when considering tungsten copper for specific application need.
| Materials | Wt% Tungsten Content | Wt% Copper Content |
Grade | RWMA Class | Density (g/cc) | Electrical Conductivity (%IACS) | Hardness (HRB) |
| W70Cu30 | 70 | Balance | A5WC | 10 | 14.18 | 47-52 | 88-95 |
| W75Cu25 | 75 | Balance | A10WC | 11 | 14.80 | 42-50 | 96-99 |
| W80Cu20 | 80 | Balance | A30WC | 12 | 15.60 | 41-49 | 99-104 |
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