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| Applications |
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| • Rigid Bars |
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| • EDM Electrodes |
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| • Fuselage Mass Balancing |
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| • Riveting Dollies and Bucking Bars |
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| • Electrical Contacts for Switchgear |
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| • Vibration Damping & Dynamic Balancing |
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| The Technology of obtaining a microstructure of Tungsten grains homogenously embedded in a conductive matrix of high purity copper has been developed and perfected by TUNCOSI. |
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 To fulfil critical demand of high resistance to arc erosion and good electrical conductivity. |
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| Suitable for spark erosion of hard materials like Cemented Carbide for maximum electrode life and minimum downtime. |
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| These alloys are manufactured specially to customers drawings and specifications. |
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| Having specific properties of high density and high modulus of elastictiy, they are superior in application such as rigid boring bars, counter balancing weights, etc. |
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| They are machinable by conventional metal removal techniques like turning, milling, drilling or grinding. |
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| Standard Composition of Tungsten Copper Products |
| Grade |
Composition |
Density gm/cm3 |
Hardness HV30 |
Electrical Conductivity % IACS* |
T-60 |
W-60, Cu-40 |
13.0-13.7 |
130-175 |
40-50 |
T-70 |
W-70, Cu-30 |
13.8-14.6 |
150-210 |
38-45 |
T-75 |
W-75, Cu-25 |
14.6-15.0 |
180-230 |
35-42 |
T-80 |
W-80, Cu-20 |
14.8-15.6 |
210-270 |
30-38 |
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*100% IACS = 0.58001/OHM-CM |
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