Molecular formula :
nature : carbon content less than 2% of the iron-carbon alloy. According smelting methods can be divided into open hearth furnace steel, steel converter, electric furnace steel and steel crucible. According uses can be divided into structural steel, tool steel and special steel performance. Under the ingredients can be divided into carbon steel and alloy steel. Under pouring deoxy extent, divided into boiling steel, sedation steel, steel semi-sedation. Steel mainly divided into four groups : steel, steel pipes and wire (steel) and steel. In the industrial sector is very wide application.
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