Based in Fort Wayne, IN, Steel Dynamics, Inc. is among the leading steel producers and metal recyclers in the United States. It currently has steelmaking and coating capacity of around 16 million tons. It is one of the most diversified steel companies in United States with a vast range of specialty products. The company makes and markets steel products, processes and sells recycled ferrous and nonferrous metals, and fabricates and sells steel joist and decking products in the United States and internationally.

Steel Dynamics operates through three segments – Steel Operations (67% of revenues in 2023), Steel Fabrication Operations (15%) and Metals Recycling Operations (12%). Other operations, which include subsidiary operations, accounted for the balance of revenues in 2023.

Steel Operations: The unit produces steel from ferrous scrap and scrap substitutes and consists of six electric arc furnace steel mills. It mainly consists of steelmaking and coating operations. Products made at the unit are used in a number of industries including construction, automotive, manufacturing and transportation.

Metals Recycling Operations: The operations of the division include ferrous and nonferrous scrap metal processing, transportation, marketing and brokerage services. The unit purchases, processes and resales ferrous and nonferrous scrap metals into reusable forms and grades.  End-users of these products include electric arc furnace steel mills, integrated steelmakers, foundries, secondary smelters and metal brokers.

Steel Fabrication Operations: The unit produces steel building components, including steel joists, girders, trusses and steel deck. The division’s main customers are non-residential steel fabricators.

Steel Dynamics, in 2018, acquired Heartland Steel Processing, LLC from CSN Steel, S.L.U., for $400 million. Heartland produces a range of higher-margin, flat roll steel by further processing hot roll coils into cold roll, pickle and oil and galvanized products. It has the capability to produce 1 million tons of cold roll steel annually. It has a continuous pickle line, a cold mill and a galvanizing line. Moreover, its equipment is well-maintained, upgraded and in excellent operating condition.