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Copper Tungsten Alloys
Midwest Tungsten Service specializes in high quality copper tungsten alloys. We stock alloy as rod, bar, plate and sheet. MTS will custom machine parts to your specifications.

Advantages
- High arc resistance combined with good electrical conductivity
- High thermal conductivity
- Low thermal expansion
Applications
- Contacts in high voltage breakers and vacuum interruptors
- Electrodes in spark erosion cutting equipment
- Heat sinks in electronic devices
- Electrodes for resistance welding
Chemical Composition and Properties Chart
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Composition
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Density
gr/cc
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IACS
%
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Hardness
HB Mpa
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Bend Strength
Mpa
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W60 Cu40
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12.75
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47
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1373
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-
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W65 Cu35
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13.30
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44
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1520
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-
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W70 Cu30
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13.80
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42
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1716
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667
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W75 Cu25
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14.50
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38
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1912
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706
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W80 Cu20
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15.15
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34
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2158
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736
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W85 Cu15
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15.90
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30
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2354
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765
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W90 Cu10
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16.75
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27
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2550
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804
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You can reach us by e-mail at: mts@tungsten.com
Midwest Tungsten Service
7101 S. Adams St. #6
Willowbrook, IL 60527 |
Toll Free: 1-800-626-0226
Phone: 1-630-325-1001
Fax: 1-630-325-3571 |
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