Evc, Wa tungsten electrodes

Evl-2 - Vl tungsten electrode
Evi-1, Evi-2, Evi-3 tungsten electrode
Evc, Wa tungsten electrodes
Evt-15 tungsten electrodes
wp green tungsten electrode
wz-8 white zirconium 0.8% tungsten electrode
wt-20 red thorium 2% tungsten electrode
wy-20 dark blue yttrium 2% tungsten electrode
wc-20 gray cerium 2% tungsten electrode
wl-20 blue lanthanum 2% tungsten electrode
wl-15 gold lanthanum 1,5% tungsten electrode
Tungsten carbide electrode

Physical properties of tungsten

Characteristics Value
Density [g/cm3] 19,3
Covalent radius, pm 170
Melting point 3695°K (3422°C, 6192°F)
Electronegativity (by Pauling) 2,3
Electrode potential, V W ← W3+ 0.11; W ← W6+ 0.68
Oxidation states 6, 5, 4, 3, 2, 0

The supplier Evek GmbH offers to buy tungsten electrodes EVF, VA at optimal cost. If we consider tungsten welding electrodes, they look like a thin rod with or without a special coating on the surface. The supplier of tungsten electrodes EVF, VA, describing the process of using the element, indicates that during welding a volt arc is formed, the temperature of which is sufficient to melt the metal. At the same time, there is a feeding of filler material, which is a welding wire. The price of tungsten electrodes EVF, VA also implies a coating that ensures stable combustion of the arc, while protecting the molten metal from the air.

Description of the element

What is the advantage and why do suppliers recommend that consumers buy tungsten electrodes EVF, VA? Electrodes can be made of pure metal, but the ignition of the arc leaves much to be desired, while certain additives can improve the quality of the weld and the process itself, which is reflected in the price of tungsten electrodes EVF, VA, which have a zirconium additive. The zirconium additive in the supplier's recommended EVF, VA tungsten electrodes provides a light sweep, arc stabilization, and is used for non-ferrous metal applications.

Element requirements

EHF electrodes are available in diameters from 1 to 8 mm, VA tungsten electrodes are distinguished by increased thermal stability. Offering to purchase quality products, suppliers of EVF, VA tungsten electrodes specify requirements, according to which they are manufactured:

  • The surface of the elements should be free of delamination and cracks, shells and oxides, foreign contamination, residues of technological lubricants.
  • Elements shall be straight, non-uniformity of diameter shall not exceed limit deviations.
  • Cut faces of the elements must be straight, it is not allowed chipping, which value exceeds the limit deviation.
  • Internal splits and cracks are not allowed.

Cost and purchase

You can order and buy tungsten electrodes EVF, VA on the website of Evek GmbH. The price of EVF, VA tungsten electrodes can be negotiated with the company managers, and flexible discounts are available for regular and wholesale buyers.