Refractory Metal Compositions FOR SALE and Available Now at Weld Systems Integrators

Elkonite®, Elkon® and Anviloy®

NOTE:  All properties shown are TYPICAL and should not be used for specifications

*Properties are in full heat treated condition

**Hardness is 56 HRA at 1475ºF (800ºC)

Stronger, generally harder, and having less conductivity, the refractory metal compositions include tungsten-copper, tungsten-copper alloy, tungsten carbide-copper, tungsten carbide-copper alloy, tungsten, molybdenum and tungsten-nickel-iron-molybdenum.

Elkonite® is used to identify a group of metal compositions whose elements consist of the refractory metals tungsten, molybdenum and tungsten carbide combined with copper. Combinations of these elements produce dense, hard metals of superior wear resistance and strength at elevated temperatures, coupled with good thermal and electrical conductivity. The mechanical and physical properties of the Elkonite® materials make them particularly suitable as the die inserts and facings for volume projection welding, flash and butt welding, electrical upsetting, electroforging and mash welding applications.

Elkon® 100W 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 used for electrobrazing electrode material and for some electrical upsetting operations.

Elkon® 100M is used principally for electrobrazing 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 is a machinable tungsten-based material. It was developed primarily for die-casting, aluminum permanent molding, and for difficult extrusion dies. Anviloy 1150 is a material with a low coefficient of thermal expansion, good thermal conductivity, and good material properties at elevated temperatures that combine for superior performance in a variety of applications. This unusual combination of properties results in a material with less thermal fatigue in the casting die or extrusion die.

The bars and inserts listed below are made in the following RWMA group B alloys: Class 10, Class 11, and Class 12. Bars and inserts of Class 13 and Class 14, as well as special sizes and shapes, are priced on request.


Tuffaloy Copper Tungsten Round Bars | Weld Systems Integrators

Eight inches long, available in the following diameters: from 1/8″ to 2″.


Tuffaloy Copper Tungsten Rectangular and Square Bars | Weld Systems Integrators

Eight inches long, available in following dimensions: Widths from 1/8″ to 2″ and Thicknesses from 1/8″ to 1″.


Tuffaloy Copper Tungsten Round Inserts | Weld Systems Integrators

Diameters from 1/8″ to 2″ and Thicknesses from 1/4″ to 1″.



Tungsten 55% – Copper 45%, suited for facings and inserts for projection welding electrodes and flash and butt welding electrodes. It is recommended where (relatively) high electrical conductivity and some degree of malleability is desired.


Tungsten 75% – Copper 25%, suited to similar applications as Class 10, and for facing on electrode forming electrodes. It is harder than Class 10, and is for general use in projection welding electrodes.


Tungsten 80% – Copper 20%, suited for electro-forming and electro-forging facings, and for electrode facings used to upset studs and rivets. A material for heavy-duty projection welding electrodes.



Class 13 and 14 materials are used primarily for welding or electro-brazing non-ferrous metals having relatively high electrical conductivity. They are suited to cross-wire welding of copper and brass, and for welding copper wire braid to brass or bronze terminals. Special set-ups and procedures are required.

Consumable brands we represent:

Resistance Welding Consumable BRANDS
Tuffaloy CMW Pacific Worco Centerline Luvata
Partner Logo Tuffaloy | Weld Systems Integrators Partner Logo - CMA | Weld Systems Integrators Partner Logo - Pacific | Weld Systems Integrators Partner Logo - Worco | Weld Systems Integrators Partner Logo - Centerline | Weld Systems Integrators Partner Logo - Luvata | Weld Systems Integrators
Tipaloy RWP Welform
Partner Logo - Tipaloy | Weld Systems Integrators Partner Logo - RWP | Weld Systems Integrators Logo Welform Electrodes | Weld Systems Integrators

Custom Consumables

Weld Systems Integrators can manufacture custom resistance welding consumables, electrodes, tooling and components from our IN-STOCK inventory of refractory metal compositions. We can machine custom components in a variety of sizes, shapes and weights. Please contact our knowledgeable sales and service team at 844-WSI-WELD or +1-216-475-5629 for immediate assistance.

Contact Weld Systems Integrators

Weld Systems Integrators (WSI) is your complete source for standard and custom resistance welders, consumables, spare and replacement parts and value added services. We offer WORLDWIDE shipping from our Warrensville Heights, OH location.

CONTACT Weld Systems Integrators, or REQUEST A QUOTE on standard IN-STOCK inventory or fully custom welding equipment. To speak with a WSI team member, please give us a call at 844-WSI-WELD or +1-216-475-5629.