Pure tungsten is the material for producing pure tungsten products. Pure wolfram is so-called pure for its purity is over 99.95%. Products made of pure tungsten have the highest density among the tungsten products, including tungsten alloy and tungsten carbide products. Pure tungsten products are preferred by customers for its high density, high temperature resistance, high corrosion resistance, high wear resistance, high hardness, and low thermal expansion.
A hard, rare metal under standard conditions when uncombined, tungsten is found naturally on Earth only in chemical compounds. It was identified as a new element in 1781, and first isolated as a metal in 1783. The free element is remarkable for its robustness, especially the fact that it has the highest melting point of all the non-alloyed metals and the second highest of all the elements after carbon. Also remarkable is its high density of 19.3 times that of water, comparable to that of uranium and gold, and much higher (about 1.7 times) than that of lead.Tungsten with minor amounts of impurities is often brittle and hard, making it difficult to work. However, very pure tungsten, though still hard, is more ductile, and can be cut with a hard-steel hacksaw.
The unalloyed elemental form is used mainly in electrical applications. Tungsten's many alloys have numerous applications, most notably in incandescent light bulb filaments, X-ray tubes (as both the filament and target), and superalloys. Tungsten's hardness and high density give it military applications in penetrating projectiles. Tungsten compounds are most often used industrially as catalysts.
Tungsten is the only metal from the third transition series that is known to occur in bio-molecules, where it is used in a few species of bacteria. It is the heaviest element known to be used by any living organism. However, tungsten interferes with molybdenum and copper metabolism, and is somewhat toxic to animal life.
Pure tungsten products include tungsten electrode,tungsten wire,tungsten contact, tungsten heater,tungsten filament,tungsten crucible, and so on.
Specialist tungsten and tungsten carbide manufacturer and supplier in the Chinese Mainland. Properties of the element, including its history, applications, and characteristics. Manufacturer of pure tungsten powder and tungsten carbide powder.
Specialising in fun cutlery for children including personalised cutlery, melamine plates cups and bowls. Research, development and production of tungsten metal, molybdenum metal, titanium metal such as carbide tools, wire, rod, alloy, sheet, and plate. ISO 9001:2000 certified. Specialist tungsten and tungsten carbide manufacturer and supplier in the Chinese Mainland.
Supplier of tungsten carbide wedding bands for men. Styles include items that are textured, round, flat or grooved. Manufacturers of tungsten carbide wires, bars, and tube drawing dies. Germany. Produces range of round and rectangular bars, bushings, tubes, rings, discs, shaped parts, and rectangular EDM blanks. Available in high density alloys and tungsten carbide/copper/molybdenum qualities.
Provider of pre-ground welding electrodes, precision tungsten electrode grinders, and other selected accessory products to support the precision welding industry on a worldwide basis. Specialist tungsten and tungsten carbide manufacturer and supplier in the Chinese Mainland. Properties of the element, including its history, applications, and characteristics.
