Steel Dynamics, Inc., together with its subsidiaries, operates as a steel producer and metal recycler in the United States. It operates through three segments: Steel Operations, Metals Recycling Operations, and Steel Fabrication Operations. The Steel Operations segment offers hot roll, cold roll, and coated steel products; parallel flange beams and channel sections, flat bars, large unequal leg angles, and reinforcing bars, as well as standard strength carbon, intermediate alloy hardness, and premium grade rail products; and engineered special-bar-quality products, merchant-bar-quality products, and other engineered round steel bars.