Oxygen is blown into the molten iron, reducing its carbon content from 4% to <0.5%. Scrap is added to control the temperature. Steel is then tapped from the furnace vessel into a steel ladle ready for casting, and slag is removed. Waste gases containing carbon monoxide are captured and used for power generation. Depending on the required steel grade, the melt is further treated to adjust its chemical composition. Treatment has to be individual and very precise.
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