色咪咪网站,艳妇荡乳欲伦1,西班牙燃烧的身体,国产hdxxx天美传媒女职员

Pure Tungsten Facts

What is pure?

Pure means not mixed with anything else or clean, free from dirt, dust, bacteria, or any harmful matter.

What is pure tungsten?

pure tungstenPure 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.

Tungsten /?t??st?n/, also known as wolfram /?w?lfr?m/ (wuul-fr?m), is a chemical element with the chemical symbol W and atomic number 74.

What are pure tungsten facts?

Pure tungsten is 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. Its important ores include wolframite and scheelite. 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.

Pure tungsten facts is the only metal from the third transition series that is known to occur in bimolecular, 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.

If you have any interest in pure tungsten facts, please feel free to contact us by email: sales@chinatungsten.com, sales@xiamentungsten.com or by telephone: +86 592 5129696.

主站蜘蛛池模板: 屏南县| 江津市| 永仁县| 汕头市| 连城县| 江川县| 广东省| 牡丹江市| 长丰县| 隆尧县| 上高县| 新邵县| 清新县| 江孜县| 长白| 福建省| 上高县| 盐山县| 台中市| 甘肃省| 晋宁县| 简阳市| 通许县| 池州市| 隆化县| 陕西省| 天峨县| 光泽县| 黑河市| 西和县| 渝北区| 涡阳县| 海兴县| 始兴县| 葫芦岛市| 科技| 天柱县| 长岭县| 革吉县| 大余县| 武山县|