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Subject Open-hearth furnaces Remove constraint Subject: Open-hearth furnaces

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    • after 1895

    View of a 100-ton capacity ladle of liquid steel removed from an open hearth furnace at an unknown manufacturing plant. Open hearth furnaces are used to burn excess carbon and other impurities out of pig iron, an…

    • after 1895

    View of two workers tapping open hearth furnaces and carbonizing molten metal at an unknown manufacturing plant. Open hearth furnaces are used to burn excess carbon and other impurities out of pig iron, an intermediate…

    • after 1895

    View of a line of furnaces in an open hearth mill at an unknown manufacturing plant. During the conversion of iron into steel, raw materials such as molten iron are "charged" or deposited into the interior of a furnace,…