Composite materials combining arc resistant refractory metals with silver or copper for increased conductivity.
The ELKON® Family of Hybrid Refractory Composite Contact Materials combines the high wear resistance and arc tolerant advantages of tungsten, tungsten-carbide and Molybdenum with the superior electrical and thermal conductivity of Copper and Silver.
ELKON Silver-Tungsten composites provide high conductivity, low resistivity and high resistance to mechanical wear and arc erosion for high voltage, high temperature, heavy-duty switching applications in oxidizing atmospheres. Additionally, the combination of tungsten carbide and silver creates an even harder material with superior mechanical wear and arc resistance and a higher resistance to contact welding or sticking.
ELKON Copper-Tungsten composites provide lower cost alternatives with excellent wear and conductive characteristics for applications in non-oxidizing atmospheres such as gas filled or oil filled devices. Copper-Tungsten exhibits even higher resistance to arc erosion than Silver-Tungsten, very high mechanical strength and is highly resistant to thermal and mechanical shock. Common uses include high voltage arc runners, arcing tips, spark gap electrodes, contact tips, plunger tips and tulip style receivers.
Silver Tungsten Materials
| ELKON® Designation | Description |
|---|---|
| ELKON A25 | 25% Silver / 75% Tungsten. |
| ELKON 20S | 27% Silver / 73% Tungsten. |
| ELKON 35S | 35% Silver / 65% Tungsten. |
| ELKON 50S | 49% Silver / 51% Tungsten. |
| ELKON A80 | 80% Silver / 20% Tungsten. Extruded. |
| ELKON 2120 | 80% Silver / 20% Tungsten. Press, Sinter, re-Press |
| ELKON A90 | 90% Silver / 10% Tungsten. Extruded. |
| ELKON 2110 | 90% Silver / 10% Tungsten. Press, Sinter, re-Press |
Copper Tungsten Materials
| ELKON® Designation | Description |
|---|---|
| ELKON R45 | 45% Copper / 55% Tungsten. |
| ELKON R32 | 32% Copper / 68% Tungsten. |
| ELKON R30 | 30% Copper / 70% Tungsten. |
| ELKON R25 | 25% Copper / 75% Tungsten. |
| ELKON 30W3 | 20% Copper / 80% Tungsten. |
| ELKON 40W3 | 13% Copper / 87% Tungsten. |
| ELKON 50W3 | 10% Copper / 90% Tungsten. |
Silver Tungsten Carbide Materials
| ELKON® Designation | Description |
|---|---|
| ELKON G11 | 60% Silver / 40% Tungsten Carbide. |
| ELKON G12 | 65% Silver / 35% Tungsten Carbide. |
| ELKON 3042 | 58% Silver / 42% Tungsten Carbide. |
| ELKON G13 | 50% Silver / 50% Tungsten Carbide. |
| ELKON G14 | 40% Silver / 60% Tungsten Carbide. |
| ELKON G15 | 35% Silver / 65% Tungsten Carbide. |
| ELKON 3165 | 35% Silver / 65% Tungsten Carbide. Press, Sinter, re-Press |
| ELKON 3160 | 40% Silver / 60% Tungsten Carbide. Press, Sinter, re-Press |
| ELKON 3150 | 50% Silver / 50% Tungsten Carbide. Press, Sinter, re-Press |
| ELKON 3140 | 60% Silver / 40% Tungsten Carbide. Press, Sinter, re-Press |
| ELKON 3135 | 65% Silver / 35% Tungsten Carbide. Press, Sinter, re-Press |
Copper Tungsten Carbide Materials
| ELKON® Designation | Description |
|---|---|
| ELKON TC5 | 50% Copper / 50% Tungsten Carbide. |
| ELKON TC10 | 44% Copper / 56% Tungsten Carbide. |
| ELKON TC20 | 30% Copper / 70% Tungsten Carbide. |
Silver Molybdenum Materials
| ELKON® Designation | Description |
|---|---|
| ELKON G17 | 40% Silver / 60% Molybdenum. |
| ELKON G18 | 50% Silver / 50% Molybdenum. |
| ELKON AM40 | 40% Silver / 60% Molybdenum. Press, Sinter, re-Press. |
| ELKON AM50 | 50% Silver / 50% Molybdenum. Press, Sinter, re-Press. |
