The tungsten copper bar is an alloy composed of tungsten and copper, and the copper content of the commonly used alloy is 10% to 50%. The alloy is prepared by powder metallurgy method and has good electrical and thermal conductivity, good high temperature strength and certain plasticity. At very high temperatures, such as above 3000 ° C, the copper in the alloy is liquefied and evaporated, which a
The tungsten copper bar is an alloy composed of tungsten and copper, and the copper content of the commonly used alloy is 10% to 50%. The alloy is prepared by powder metallurgy method and has good electrical and thermal conductivity, good high temperature strength and certain plasticity. At very high temperatures, such as above 3000 ° C, the copper in the alloy is liquefied and evaporated, which absorbs a large amount of heat and lowers the surface temperature of the material. So this type of material is also known as metal sweating material.
Tungsten copper bar grade: WD10070;
Model: 55W45Cu, 68W32Cu, 70W30Cu, 75W25Cu, 80W20Cu, 85W15Cu, 90W10Cu.
| Composites | Nominal Composition (% Weight) |
Density (g/cm3, ≥) |
Electrical Resistivity (20°C, µΩ·cm, ≤) |
Electrical conductivity (IACS%, ≥) |
Hardness(≥) Brinell Hardness |
Bending Strength | ||
| MPa | Kgf/mm2 | MPa | Kgf/mm2 | |||||
| CuW50 | 50% Copper 50% Tungsten |
11.85 | 3.2 | 54 | 1128 | 115 | --- | --- |
| CuW55 | 45% Copper 55% Tungsten |
12.3 | 3.5 | 49 | 1226 | 125 | --- | --- |
| CuW60 | 40% Copper 60% Tungsten |
12.75 | 3.7 | 47 | 1373 | 140 | --- | --- |
| CuW65 | 35% Copper 65% Tungsten |
13.3 | 3.9 | 44 | 1520 | 155 | --- | --- |
| CuW70 | 30% Copper 70% Tungsten |
13.8 | 4.1 | 42 | 1716 | 175 | 667 | 68 |
| CuW75 | 25% Copper 75% Tungsten |
14.5 | 4.5 | 38 | 1912 | 195 | 706 | 72 |
| CuW80 | 20% Copper 80% Tungsten |
15.15 | 5.0 | 34 | 2158 | 220 | 736 | 75 |
| CuW85 | 15% Copper 85% Tungsten |
15.9 | 5.7 | 30 | 2354 | 240 | 765 | 78 |
| CuW90 | 10% Copper 90% Tungsten |
16.75 | 6.5 | 27 | 2550 | 260 | 804 | 82 |
Tungsten based composites are widely used where the combination of good electrical and/or thermal conductivity and low thermal deformation is necessary, for example:· In electric resistance welding as electrical contacts or heat sinks.· In electrodes for electrical discharge machining (EDM) and electrochemical machining (ECM).