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Carnegie began to see that steel was eventually going to replace iron for the manufacture of rails, structural shapes, pipe, and wire. In 1873 he organized a steel rail company. The first steel furnace at Braddock, Pennsylvania, began to roll rails in 1874.
Andrew Carnegie (/ k ÉËr Ë n eÉª É¡ i / kar-NAY-gee, but commonly / Ë k ÉËr n áµ» É¡ i / KAR-nÉ-gee or / k ÉËr Ë n É É¡ i / kar-NEG-ee; November 25, 1835 â August 11, 1919) was a Scottish-American industrialist who led the enormous expansion of the American steel industry in the late 19th century.