W70cu30 Customized Copper Tungsten Rod
W70cu30 is a two-phase structure pseudo alloy based on tungsten
element and copper element as a secondary composition. It is a
composite material in metal. Due to the large difference in
physical properties of metal copper and tungsten, it cannot be
produced by melting and casting. Nowadays, powder alloy technology
is generally used for production. Application areas include:
1. High-performance materials for aerospace: Tungsten copper
materials have high density, sweat cooling performance, high
temperature strength and erosion resistance.
2. Vacuum contact material: The tungsten copper/copper composite
contact produced by our company does not contain the third alloy
element. The tungsten matrix is sintered at a high temperature
above 2000 ℃, and the whole is processed by high vacuum. It has
uniform material, low gas and impurity content, The advantages of
high conductivity, good composite interface, dense copper layer and
so on. For many years, most domestic vacuum load switch tube
manufacturers have used our company's composite contacts.
3. Electrodes for EDM: When EDM is used to process cemented carbide
products, due to the special performance of WC, the loss of copper
or graphite electrodes is quite fast. For EDM of this material, our
company's W- Cu electrodes are most suitable.
4. Electronic packaging materials and heat sink materials: W-Cu
electronic packaging materials have both the low expansion
characteristics of tungsten and the high thermal conductivity of
copper. What is particularly valuable is that its thermal expansion
coefficient and thermal conductivity can be adjusted by adjusting
the material The composition is designed, which brings great
convenience to the application of the material. We use high-purity
and high-quality raw materials, after pressing, high-temperature
sintering and infiltration, we obtain W-Cu electronic packaging
materials and heat sink materials with excellent performance.
Materials suitable for packaging with high-power devices, such as
substrates, electrodes, etc.; high-performance lead frames; thermal
control boards and radiators for military and civilian thermal
control devices.
W70cu30 Picture:
Specifications of Copper Tungsten Rod:
| Code No. | Chemical Composition % | Mechanical properties |
| CU | Impurity | W | Density (g/cm3 ) | Hardness HB | RES( cm) | Conductivity IACS/ % | TRS/ Mpa |
| CuW(50) | 50±2.0 | 0.5 | Balance | 11.85 | 115 | 3.2 | 54 | |
| CuW(55) | 45± 2.0 | 0.5 | Balance | 12.30 | 125 | 3.5 | 49 | |
| CuW(60) | 40±2.0 | 0.5 | Balance | 12.75 | 140 | 3.7 | 47 | |
| CuW(65) | 35±2.0 | 0.5 | Balance | 13.30 | 155 | 3.9 | 44 | |
| CuW(70) | 30±2.0 | 0.5 | Balance | 13.80 | 175 | 4.1 | 42 | 790 |
| CuW(75) | 25±2.0 | 0.5 | Balance | 14.50 | 195 | 4.5 | 38 | 885 |
| CuW(80) | 20±2.0 | 0.5 | Balance | 15.15 | 220 | 5.0 | 34 | 980 |
| CuW(85) | 15±2.0 | 0.5 | Balance | 15.90 | 240 | 5.7 | 30 | 1080 |
| CuW(90) | 10±2.0 | 0.5 | Balance | 16.75 | 260 | 6.5 | 27 | 1160 |
