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Elkonit Copper Tungsten

Elkonite is the registered trade mark of CMW used to identify a group of metal compositions whose elements consist basically 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 CMW Elkonite materials make them particularly suitable as the die inserts and facings for volume projection welding, flash and butt welding, electrical upsetting and electroforming applications.

Elkonite copper tungsten is also used successfully as facing on spot welding electrodes where heat balance or mechanical wear resistance are required. The initial premium cost of Elkonite copper tungsten is offset by lower production cost per weld due to long die life and less electrode dressing time. The high stability of Elkonite copper tungsten insures uniform heating and prevents misalignment, resulting in a higher quality weld.

Elkonite Copper Tungsten Main Properties

Elkonite Copper Tungsten Generally Uses

1W3, 3W3 generally used for flash welding with the butt of the mosaic blocks. Forge ability of these applications requires a high conductivity and a metal. These materials also can be used for spot welding (as a spherical electrode) ferrous metal of low conductivity, such as stainless steel welding.
The 5W3 and TC5 general used for light projection welding and pressure welding plus.
10W3 applies to most of the flash welding electrodes mosaic blocks, projection welding butt welding tongs. For light electric upsetting electric forging dies, and seam welding liner insert.
TC10. Recommended for use in the impression of mass production projection welding, the welding pressure is set relatively high. Non-ferrous metal processing, electric and low-carbon steel forging crude commonly used this material as the stamp face cross welded large diameter line and bars in this material.
TC20 is very hard and the easy corrosion (electrolytic corrosion) TC20 difficult to process, and may be considered the top of the carbon tool. Processing is unrealistic.
This material used as the electric upsetting electric forging in very specific applications.

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