Boron Boron (pronounced) is a chemical element with atomic number 5 and the chemical symbol B. Boron is a trivalent nonmetallic element which occurs abundantly in the evaporite ores borax and ulexite. Boron is never found as a free element in nature.
Ferro boron is used in the production of alloy steek and foundry iron as additives, which can improve the quenching degree and mechanical properties in carbon steel and alloys structual steel, the strength of heat-resistivity in heat-resistant steel and heat-resistant alloy steel. Ferro born is also used in the production of Nd-fe-B permanents magnets.
Ferro chrome aka. FeCr is a corrosion-resistant alloy of chrome and iron containing between 50% and 65% chrome. It is a finishing material which contains about 50-70% (depending on ore used a the producer) chromium alloyed with iron. Most of the world's ferro chrome is produced in South Africa, Kazakhstan and India, which have large domestic Cr Ore resources. Increasing amounts coming from Russia and China.
Manganese (pronounced /'mæ?g?ni?z/) is a chemical element that is designated by the symbol Mn and has an atomic number of 25. It is found as the free element in nature (often in combination with iron), and in many minerals. The free element is a metal with important industrial metal alloy uses. Manganese ions are variously colored, and are used industrially as pigments and as oxidation chemicals. Manganese (II) ions function as cofactors for a number of enzymes; the element is thus a required trace mineral for all known living organisms.
Ferrochrome production is essentially a carbothermic reduction operation taking place at high temperatures. Cr Ore (an oxide of chromium and iron) is reduced by coal and coke to form the iron-chromium alloy. The heat for this reaction can come from several forms, but typically from the electric arc formed between the tips of the electrodes in the bottom of the furnace and the furnace hearth. This arc creates temperatures of about 2800°C. In the process of smelting, huge amounts of electricity are consumed making production in countries with high power charges very costly.
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