Copper Tungsten Elkonite

What is Elkonite®?

Our Tungsten Copper Elkonite® alloys excel in electrical and electrical/thermal applications. Engineers and manufacturers use them for facing and inserts in flash and butt welding dies, projection welding electrodes, seam welding bearing inserts, facing for electro-forming and electro-forging dies, and EDM electrodes.

Tungsten Carbide Copper materials (TC materials) deliver high mechanical properties and excellent erosion resistance, though they require more effort to machine. Oil device manufacturers commonly use these materials to protect contacts from oxidation.

Not sure which copper tungsten alloy fits your needs? Give our experts a call.

RWMA Class 10

Elkonite® 1W3, Elkonite® 3W3, and Elkonite® 5W3

Manufacturers generally choose Elkonite® 1W3 and Elkonite® 3W3 Tungsten-Copper alloys for flash and butt welding die inserts when they need higher electrical and thermal conductivity and a degree of malleability. These materials also work well as radius-faced electrodes for spot welding low conductivity ferrous metals such as stainless steel.

Manufacturers normally select Elkonite® 5W3 Tungsten-Copper and Elkonite® TC5 Tungsten Carbide-Copper alloys for light duty projection welding dies where welding pressures remain moderate.

RWMA Class 11

Elkonite® 10W3

Engineers use Elkonite® 10W3 Tungsten Copper (75W / 25Cu) for electrode and die inserts in most flash and butt welding dies and for projection welding dies where welding pressures stay moderate. Most nut and stud welding applications braze this alloy on the electrode face. Manufacturers also use it for light electrical upsetting, electroforging dies, and seam welder bushing inserts.

RWMA Class 12

Elkonite® 30W3 and Elkonite® TC10

We recommend Elkonite® 30W3 Tungsten-Copper and Elkonite® TC10 Tungsten Carbide-Copper alloys for volume projection welding dies that involve relatively high pressures. Manufacturers typically accomplish electrical upsetting of non-ferrous metals and low carbon steel by using these Elkonite® materials as die facings. Engineers also use these materials for cross-wire welding of large diameter wire and rod.

Elkonite® 3W53 and Elkonite® 10W53

We supply Elkonite® 3W53 and Elkonite® 10W53 as heat treatable grades of Elkonite® Tungsten-Copper materials in fully heat treated condition. When you silver braze these materials to a die backing, you should heat treat them after brazing. Manufacturers use these harder grades primarily for electroforging and electrical upsetting dies, where temperatures and pressures run comparatively high.

Elkonite® TC20 & Elkonite® TC53

Elkonite® TC20 and Elkonite® TC53 Tungsten Carbide-Copper materials provide extreme hardness and wear resistance. You can machine Elkonite® TC20 material using carbide tipped tools, though it requires more effort. Elkonite® TC53 material reaches such high hardness that machining becomes impractical—you must grind it instead. Manufacturers customarily use these Elkonite® materials for special applications of electrical upsetting and electroforging.

RWMA Class 13

Elkon 100W

ELKON 100W (Pure Tungsten) delivers extreme hardness but offers relatively low ductility. You cannot machine it but can grind it to the required shape. It does not alloy appreciably with nonferrous materials. Engineers use it for cross-wire welding of metals such as copper and brass, electroblazing electrode material, and some electrical upsetting operations.

RWMA Class 14

Elkon 100M

Manufacturers use ELKON 100M (Pure Molybdenum) principally for electroblazing electrode material and cross-wire welding of nonferrous metals. It offers less hardness than Elkon 100W material, which means you can machine or drill it to fit the parts you need to join. A typical application uses this material as an electrode for welding or brazing braided or solid copper conductors to ferrous or nonferrous terminals, lugs, or fittings.

Do you have a part you need to machine? Ask us about the different shapes we can press. Elkonite or Copper Tungsten rings? No problem!

Elkonite® 10W3 Rectangular Bars – 8″ or 12″ Long

Elkonite® 10W3 Round Bars – 8″ or 12″ Long

ELKONITE® 10W3 Round Disc