General characteristic

Tungsten is an element of group VI of the periodic table of D.I. Mendeleev. Atomic number 74, atomic weight 183.9, density at room temperature 19.3 ^g/cm3. The name translates from German as wolfsbane. Because of its refractoriness (tpl = 3395 + 15°C) it serves as the basis for the most heat-resistant alloys and superhard steels (tool and high-speed steels). The electrical resistance of tungsten is almost three times that of copper. Its disadvantages are its high specific weight, low temperature brittleness and low oxidation resistance at low temperatures.

The use of

Tungsten can be processed (rolling, forging, drawing) only by heating. It imparts hardness and heat resistance to wear-resistant steels, is indispensable in filaments, parts of electro-vacuum devices, parts of aircraft engines. Its high density is beneficial in counterweights of artillery shells, bullets and high-speed (up to 180 thousand rpm) gyroscope rotors that stabilize the flight of ballistic missiles. Tungsten carbide hard alloys are indispensable for machining metal and structural nonmetallic materials in mechanical engineering (milling, turning, chiselling, planing) as well as for drilling. Sulphide _WS2 - high quality heat-resistant grease (can be used at t° up to 500°C). _WO3 trioxide is used in the manufacture of a solid electrolyte for heat-resistant fuel cells. Tungsten salts are also in demand in the textile and paint industries as a pigment and as a catalyst in organic synthesis. Tungsten monocrystals are used as scintillation detectors of X-rays and other ionizing radiation in medical radiology and nuclear physics. _WTe2 ditelluride converts thermal energy to electrical energy (thermal EMF about 57 μV/K). Tungsten is used to produce non-consumable electrodes for argon arc welding.

Buy, price

Evek GmbH sells sheet, rod, filament and other tungsten-based products at the best price. It is formed taking into account the rates on the London Non-Ferrous Metals Exchange and depends on the technological features of production without including additional costs. With us you can buy in bulk the necessary products for large-scale production. A wide range of products, comprehensive advice of managers, reasonable prices and timely delivery determine the face of our company. Wholesalers get discounts.