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| Tungsten-Copper
Alloys Plates / Rods / Parts |
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| WCu for Heat Sinks |
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WCu for Electrodes |
Description
As high performance
materials, Tungsten-Copper and Molybdenum-Copper Alloys are characterized
by high thermal conductivity, low thermal expansion and high wear
resistance combined with excellent electrical conductivity. It
is very important to indicate which following grade is for your
application, Heat Sink Grade or Electrode Grade.
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| 1. Tungsten-Copper for Heat Sinks
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1.1 Alloys and Properties |
| Properties |
WCu10 |
WCu15 |
WCu20 |
WCu25 |
| Density g/cm3 |
17.0 |
16.3 |
15.4 |
14.9 |
| CTE, ppm/K |
6.5 |
7.0 |
8.3 |
9.0 |
| Relative Density |
¡Ý 99 |
¡Ý 99 |
¡Ý 99 |
¡Ý 99 |
| Thermal Conductivity W/m.K |
170-180 |
190-200 |
200-220 |
220-250 |
1.2 Electronic Applications
Heat
Sinks and Spreaders, Microwave Carriers, Hermetic Package Bases
and Housings, Ceramic Substrate Carriers, GaAs and Silicon Device
Mounts, Laser Diode Mounts.
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| 2. Tungsten-Copper for Electrodes
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| 2.1 Alloys and Properties |
| Type |
Density (g/cm3) |
HB |
Electrical Conductivity (% IACS) |
Form |
| WCu10 |
16.8-17.2 |
¡Ý 260 |
> 27 |
Rods, Bars, Sheets, Plates, Parts |
| WCu20 |
15.2-15.6 |
¡Ý 220 |
> 34 |
| WCu25 |
14.5-15.0 |
¡Ý 198 |
> 38 |
| WCu30 |
13.8-14.4 |
¡Ý 175 |
>
42 |
2.2
Electric Applications
High Voltage Arc Contacts, Vacuum Contacts, Electrodes for Resistant
Welding and Spark Erosion, Leaders for Steel Rolling, Dies for
Casting, Balance Weights, Rocket Parts.
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| 3. Typical Size
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| Ground Finish Bars |
Ground Finish Sheets |
| Diameter (mm) |
Max. Length (mm) |
Thickness (mm) |
Max. Width x Max. Length (mm) |
| 4-8 |
175 |
1.2 |
20 x 80 |
| 10-50 |
203 |
3.3 |
30 x 150 |
| > 60 |
350 |
5 |
50 x 150 |
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10 |
100 x 200 |
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20 |
200 x 300 |
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30-100 |
300 x 400 |
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