Refractory Based Materials

ELKONITE 1W3 and 3W3 (Class 3) alloys a re generally used for flash and butt welding die inserts where higher electrical and thermal conductivity is necessary and where a degree of malleability is desirable. These materials are also used (as a radius faced electrode) for spot welding low conductivity ferrous metals such as stainless steel.

ELKONITE 5W3 and TC5 alloys are normally used for light duty projection welding dies where welding pressured are not extreme.

ELKONITE 10W3 (Class 11) alloys are used for electrode and die inserts in most flash and butt welding dies and for projection welding dies where welding pressures and moderate. It is also used for light electrical upsetting, electroforging dies and seam welder bushing inserts.

ELKONITE 30W3 and TC10 (Class 12) alloys are recommended for volume projection welding dies where the pressures involved are relatively high. Electrical upsetting of non-ferrous metals and low carbon steel is usually accomplished by the use of such Elkonite materials as die facings. Cross-wire welding of large diameter wire and rod is accomplished with such Elkonite materials.

ELKONITE 3W53 and 10W53 are heat treatable grades of Elkonite materials supplied in the fully heat treated condition. If silver brazed to a die backing, such Elkonite materials should be heat treated after brazing. These harder grades are used primarily for electroforging and electrical upsetting dies, where temperatures and pressures are comparatively high.

ELKONITE TC20 and TC53 materials are extremely hard and wear resistance. Elkonite TC20 material, while somewhat difficult to machine, may be machined using carbide tipped tools. Elkonite TC53 material is a heat treatable grade of such high hardness that machining operations area impractical and the material must be ground. Such Elkonite materials are customarily used for special applications of electrical upsetting and electroforging.

ELKON 100W (Class 13 Pure Tungsten) is extremely hard and its ductility is relatively low. It cannot be machined but may be ground to the required shape. It does not alloy appreciably with nonferrous materials and is used for cross-wire welding of metals such as copper and brass. It is also for electroblazing electrode material and for some electrical upsetting operations.

ELKON 100M (Class 14 Pure Molybdenum) is used principally for electroblazing electrode material and for cross-wire welding of nonferrous metals. It is not as hard as Elkon 100W material and may be machined or drilled to fit the parts to be joined. A typical application of this material, as an electrode, is the welding or brazing of braided or solid copper conductors to ferrous or nonferrous terminals, lugs or fittings.

ANVILOY 1150 material is used in electroblazing applications where heat balance is important. The Anviloy 1150 material also has good anti-sticking qualities and good high temperature abrasion and hardness properties. The oxidation resistance of materials is excellent up to zero F.