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Bethlehem Steel's Experimental Basic Oxygen Furnace, made in 1974 and used at Homer Research Laboratories in Bethlehem, Pennsylvania, was a miniature furnace in a small-scale, fully functional steel mill for experimental steelmaking. It used oxygen to convert liquid iron into steel and was built to make two tons of steel per batch, though it was later downgraded to one ton. Modern full-size basic oxygen furnaces can make upwards of 350 tons of steel.
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Bethlehem, Pennsylvania · United States
