Elkonite Tungsten Copper Bar With Good Electrical And Thermal Conductivity
Tungsten Copper Bar, Elkonite® ASTM B702 RWMA Class 10,Class 11, Class 12
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 3000C, the copper in the alloy is liquefied and evaporated.
- Description
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 3000C, 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.
Tungsten Copper Bar Physical and Mechanical Properties:
| 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 Copper Bar 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).
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