TUNGSTEN COPPER - COPPER ALLOYS - MarkeTech International
| Toll Free 877-452-4910 Tel: 360-379-6707 Fax 360-379-6907 |
MarketTech International, Inc. 107B Louisa St. Port Townsend, WA 98368 |
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Marketech International, Inc. offers a wide variety of Tungsten products including Tungsten Copper and Copper Alloys |
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| Description of Tungsten-Copper Alloys | ||||
| As high performance materials, Tungsten-Copper and Molybdenum-Copper are characterized by high thermal conductivity, low thermal expansion and high wear resistance combined with excellent electrical conductivity. These composites are made by infiltrating porous tungsten or molybdenum with molten copper in a vacuum. Thus providing a direct copper path for heat or electrical conductivity. | ||||
| Tungsten-Copper for Electrical Application | ||||
| Alloys and Properties | ||||
| High Voltage Arc Contacts, Vacuum Contacts, Electrodes for Resistant Welding and Spark Erosion, Leaders for Steel Rolling, Dies for Casting, Balance Weights, Rocket Parts. | ||||
| Type | Density (g/c3) |
HB (MPa) |
Electrical Conductivity (% IACS) |
Form |
| WCu10 | 16.8-17.2 |  2550 |
> 27 | Rods, Bars Sheets,Plates, Parts |
| WCu20 | 15.2-15.6 | 2160 |
> 34 | |
| WCu25 | 14.5-15.0 | 1940 |
> 38 | |
| WCu30 | 13.8-14.4 | 1720 |
> 42 | |
| Heat Sink Applications | ||||
| Heat Sinks and Spreaders, Microwave Carriers, Hermetic Package Bases and Housings, Ceramic Substrate Carriers, GaAs and Silicon Device Mounts, Laser Diode Mounts. | ||||
| Tungsten-Copper for Heat Sinks | ||||
| 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 |
| Thermal conductivity W/m.K |
1700-1800 | 190-200 | 200-220 | 220-250 |
| Typical Size | |||
Ground Finish Bars |
Ground Finish Sheets |
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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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