Iron and Steel Mills

Iron and Steel Mills (NAICS #331111)

This U.S. industry comprises establishments primarily engaged in one or more of the following: (1) direct reduction of iron ore; (2) manufacturing pig iron in molten or solid form; (3) converting pig iron into steel; (4) making steel; (5) making steel and manufacturing shapes (e.g., bar, plate, rod, sheet, strip, wire); and (6) making steel and forming tube and pipe. Manufacturing ferroalloys (i.e., alloying elements used to improve, strengthen, or otherwise alter the characteristics of steel)--are classified in U.S. Industry 331112, Electrometallurgical Ferroalloy Product Manufacturing; and Operating coke ovens--are classified in U.S. Industry 324199, All Other Petroleum and Coal Products Manufacturing.