Chemical element of 24 atomic number and atomic weight 51.996. Metal that is of silver-plated white color, hard and fragile. Nevertheless, it is relatively smooth and ductile when it is not tensed or when he is very pure. Their main uses are resistant the anticorrosive alloy production of great hardness and to the heat and like covering for galvanized. The elementary chromium is not in the nature. Its more important mineral by abundance is the chromite. Their mechanical properties, including their hardness and the resistance to the tension, determine the use capacity. The chromium has a relative capacity forged loss of, winding and properties of handling. Nevertheless, when it is absolutely free of oxygen, hydrogen, coal and nitrogen are very ductile and can be forged and be handled
