Supplier KMZ offers to buy tungsten and alloys wolframio economical price. Supplier guaranteed timely delivery at any address specified by the consumer.
Tungsten is extracted from ore — wolframite or scheelite. Tungsten ore at present in the United States are practically not mined and comes from Russia, Bolivia, Canada and China. Of significant importance is the recycling of scrap. Tungsten is extracted chemically from the crushed ore by a series of chemical reactions, titrations, washings, and filters.
Tungsten is often used in alloys with other metals to increase their strength and resistance to wear and corrosion. A high speed steel used for the production of cutting, deforming, and measuring tools, cutters, saw blades, punches, matrices, etc. — contain around 18 percent tungsten.
|The linear thermal expansion coefficient α [1/Deg]||43x10−6|
|Tensile strength tensile kg/mm2||35|
|Melting point||3695°K (3422°C, 6192°F)|
|Boiling point||5828°K (5555°C, 10031°F)|
Steel, alloyed with tungsten, are also used in the production of nozzles of rocket engines, which must have high heat resistant properties. Other tungsten alloys including Stellite (cobalt and chromium) is used in bearing and pistons due to durability and wear-resistance. In the production of munitions also apply heavy tungsten alloys, which are sintered from a powder. Tungsten alloys, which contain cobalt, iron and/or Nickel, can be used for the production of turbine blades for aircraft.
At the world price of tungsten and its alloys have an effect:
- The profitability of ore development
- The speed of transportation of raw materials to places of its processing and enrichment;
- The political situation;
- The shape and size of the tungsten blanks.
Established in the recent years the range of prices for semi-finished and finished tungsten products ranges from 25 to 2500 dollars. USA per kilogram, and most of the production is in the range from 100 to 350 dollars. USA per kilogram.
Supplier KMZ offers to buy tungsten and tungsten alloys at economical price. Supplier guaranteed timely delivery at any address specified by the consumer.
Buy rare and refractory metals from a vendor KMZ can at an affordable price. The price is formed based on the European standards of production. Buy tungsten and tungsten alloys at a reasonable price, you can wholesale or retail. Regular customers can take advantage of the discount system of discounts from the company KMZ.
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