Nucor Corporation manufactures steel and steel products. The company also produces and procures ferrous and non ferrous materials primarily for use in its steel manufacturing business. Most of the company's operating facilities and customers are located in North America. Nucor is North America's largest recycler using scrap steel as the primary raw material in producing steel and steel products. In 2025 the company recycled approximately 20,000,000 gross tons of scrap steel.
Nucor generates revenue from the sale of steel mill products such as hot rolled sheet steel, cold rolled sheet steel, galvanized sheet steel, plate steel, structural steel including wide flange beams and H piling, and bar steel including concrete reinforcing bar, merchant bar and engineered special bar quality. The steel products segment contributes revenue from steel joists and joist girders, steel deck, galvanized solar torque tube, hollow structural section steel tubing, electrical conduit, fabricated concrete reinforcing steel, cold finished steel, steel fasteners, steel grating and expanded metal, wire and wire mesh, metal building systems, insulated metal panels, steel racking, overhead doors, utility towers and structures. Revenue also comes from trading and distribution of steel products, scrap recycling and brokerage operations, direct reduced iron production, natural gas sales and industrial gas services. The company serves a diverse customer base including steel service centers, fabricators, manufacturers, construction firms, automotive companies, appliance makers, energy providers and infrastructure developers.
The company operates through the following segments: steel mills, steel products, and raw materials.
- Steel mills: This segment produces sheet steel, plate steel, structural steel and bar steel using electric arc furnaces and continuous casting, sells primarily to steel service centers, fabricators and manufacturers in the United States, Canada and Mexico, and includes international trading and distribution operations as well as an equity investment in NuMit.
- Steel products: This segment manufactures steel joists and joist girders, steel deck, galvanized solar torque tube, hollow structural section steel tubing, electrical conduit, fabricated concrete reinforcing steel, cold finished steel, steel fasteners, steel grating and expanded metal, wire and wire mesh, metal building systems, insulated metal panels, steel racking, overhead doors, utility towers and structures, and serves nonresidential construction and infrastructure markets.
- Raw materials: This segment produces direct reduced iron, brokers ferrous and non ferrous metals, pig iron, hot briquetted iron and direct reduced iron, supplies ferroalloys, processes ferrous and non ferrous scrap metal, and includes natural gas production operations and the industrial gas business Universal Industrial Gases.
Nucor is North America's largest recycler and a leading domestic supplier for many steel products including structural steel, merchant bar steel, steel joist and deck, pre engineered metal buildings, steel piling, cold finish bar steel, steel electrical conduit pipe and insulated metal panels. The company benefits from an electric arc furnace based steelmaking process that has lower greenhouse gas intensity than traditional blast furnace methods, a flexible cost structure, a diversified product mix and a strong balance sheet with low debt. Competitors include domestic integrated steel producers, other domestic electric arc furnace mills, steel imports and alternative materials such as concrete, aluminum, plastics, composites and wood.
Nucor serves a broad customer base that includes steel service centers, fabricators, manufacturers, construction companies, automotive firms, appliance producers, energy companies and infrastructure developers. The company's scrap recycling and brokerage operations sell ferrous and non ferrous scrap to electric arc furnace steel mills, foundries, aluminum can producers and secondary aluminum smelters.