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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® DesignationDescription
ELKON A2525% Silver / 75% Tungsten.
ELKON 20S27% Silver / 73% Tungsten.
ELKON 35S35% Silver / 65% Tungsten.
ELKON 50S49% Silver / 51% Tungsten.
ELKON A8080% Silver / 20% Tungsten. Extruded.
ELKON 2120 80% Silver / 20% Tungsten. Press, Sinter, re-Press
ELKON A9090% Silver / 10% Tungsten. Extruded.
ELKON 2110 90% Silver / 10% Tungsten. Press, Sinter, re-Press

Copper Tungsten Materials

ELKON® DesignationDescription
ELKON R4545% Copper / 55% Tungsten.
ELKON R3232% Copper / 68% Tungsten.
ELKON R3030% Copper / 70% Tungsten.
ELKON R2525% Copper / 75% Tungsten.
ELKON 30W320% Copper / 80% Tungsten.
ELKON 40W313% Copper / 87% Tungsten.
ELKON 50W310% Copper / 90% Tungsten.

Silver Tungsten Carbide Materials

ELKON® DesignationDescription
ELKON G1160% Silver / 40% Tungsten Carbide.
ELKON G1265% Silver / 35% Tungsten Carbide.
ELKON 304258% Silver / 42% Tungsten Carbide.
ELKON G1350% Silver / 50% Tungsten Carbide.
ELKON G1440% Silver / 60% Tungsten Carbide.
ELKON G1535% 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® DesignationDescription
ELKON TC550% Copper / 50% Tungsten Carbide.
ELKON TC1044% Copper / 56% Tungsten Carbide.
ELKON TC2030% Copper / 70% Tungsten Carbide.

Silver Molybdenum Materials

ELKON® DesignationDescription
ELKON G1740% Silver / 60% Molybdenum.
ELKON G1850% Silver / 50% Molybdenum.
ELKON AM40 40% Silver / 60% Molybdenum. Press, Sinter, re-Press.
ELKON AM50 50% Silver / 50% Molybdenum. Press, Sinter, re-Press.
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