Basic workpiece materials


Once iron ore has been extracted from pig iron, an additional process is carried out on the iron ore. This additional process is carried out so as to remove certain impurities and gases from the iron ore. Impurities removed range from excessive carbon (C), silicon (Si), phosphorus (P), sulfur (S), and gases like oxygen (O), nitrogen (N).


Once this process has been completed the final product is “steel”. Note however that in the steels group, there are variations based on the chemical composition. The main groups being, carbon steel, alloy steel, tool steel and special-purpose steel.

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