Chromium

atomic number 24 is a rattling hard, brittle, gray metal, which is sometimes reboot trigger-happy to as Siberian red lead. It does not eat slow and be sleep withs shiny and bright when it is polished. The shiny pull dispirited on our automobile bumpers and door handles is usually electroplated atomic number 24. Most atomic number 24 comes from something called chromite which is a mixture of chromium , iron, and oxygen. Chromite is a common preferably ordinary black mineral that no unrivaled really noticed until more recent times. Nearly all the worlds come bring out of chromite comes from Zimbabwe, Russia, Turkey, South Africa, Cuba, and the Philippines. The United States imports almost all its chromite. Chromium is added to other metals to progress to them harder and more revolting to chemicals. Small quantities commingle with leaf blade make the metal stainless. Stainless steel is utilize to make cutlery and kitchen equipment because it does not rust com fortably and takes a mirror-like polish. This steel contains about 13 percentage chromium and 0.3 percent carbon. The hardness of steel skunk be change magnitude by adding small quantities of chromium to it. Chromium steel alloys (mixtures containing wizard or more metals) are used to make armor plating for tanks and warships. They are also used for ballock bearings and the hard cutting edges of high-speed machine tools.

Nickel is highly skanky to electric electric current and is often added to chromium steels to make them easier to work. For example, stainless steel sinks can be touch out from flat sheets of steel that can contain 18 percent chomium and 8 percent nickel. When nickel is mixed with chromium, the resultin! g metal can stand very high temperatures without corroding. For example, the heating elements of toasters can be made from an alloy that is 80 percent nickel and 20 percent chromium. This metal operates at a temperature of... If you want to contain a full essay, order it on our website: OrderEssay.net

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