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4 MIN. READ
The U.S. primary metals industry is a cornerstone of manufacturing, driving innovation and economic growth across construction, automotive, aerospace, energy, and beyond. This dynamic sector transforms raw materials into essential forms. Think steel beams, aluminum sheets, and copper wire. These are the fundamentals that serve as the foundation for countless downstream applications.
Today, the industry is facing a new era shaped by tariffs, sustainability demands, technology investment, and shifting supply chains. After years of globalization and commodity volatility, the sector is regaining strategic importance, with domestic reinvestment and new demand from clean energy projects driving its next chapter.
According to data collected by MNI, compiler and publisher of the industrial data that powers IndustrySelect, the U.S. primary metals sector includes:
Ownership diversity remains limited, with 1% minority-owned and 1% woman-owned, both trailing broader manufacturing benchmarks.
Primary metal manufacturers smelt or refine metals. These companies work with both ferrous (iron) and nonferrous types. They refine them from ore, pig iron, and scrap metal. If you were to tour the production facilities, you would find processes based on the use of electricity, chemicals, or both. These manufacturers also make alloys composed of various combinations of metals.
The initial products are ingots, the type of shapes you might picture being stored at Fort Knox. Ingots can be drawn, rolled, or extruded into other forms, including:
Ingots can also be melted to make castings. Other manufacturers fabricate an almost unlimited array of products from these basic forms.
By SIC category, the industry breaks down as follows:
Steelmaking remains the largest single segment, but nonferrous metals, including lightweight alloys for aerospace to copper for clean energy grids. represent a fast-growing share of the market.
Primary metals manufacturing is deeply regional. The Midwest continues to lead with 38% of companies, followed by the South (30%), the East Coast (18%), and the Pacific/Mountain region (14%).
Ohio has long been the heart of American steel and foundry production. Its position along the Great Lakes provides efficient shipping of raw materials and finished products, while its proximity to Detroit and Chicago makes it indispensable to the automotive supply chain. Ohio is also home to a strong cluster of pipe and tube manufacturers, supporting energy infrastructure.
Pennsylvania is synonymous with steel. Pittsburgh remains a global symbol of heavy industry, while eastern Pennsylvania specializes in copper, specialty steels, and advanced alloys. The state’s intermodal transport system—rail, highways, and ports—keeps its producers well-connected to domestic and export markets.
Texas’s role in the primary metals sector is tied to energy. Houston is a hub for pipe and tube manufacturing, while Dallas and San Antonio house a mix of steel and aluminum producers serving construction and petrochemical markets. The state’s lower energy costs and land availability give it a competitive advantage.
California’s metals industry skews toward nonferrous producers and advanced alloys. Aerospace corridors in Los Angeles and the Bay Area demand lightweight, high-performance metals, while renewable energy projects create steady demand for aluminum and copper. Environmental policies also push California firms to innovate in cleaner production.
Located in the industrial Midwest, Illinois benefits from a rich supply chain network and access to raw materials via the Mississippi River and Great Lakes. The state houses both integrated steel mills and smaller foundries, serving everything from construction to farm equipment. Chicago’s role as a logistics hub enhances Illinois’s position.
Michigan’s metals industry is closely tied to its automotive heritage. The state’s foundries and rolling mills produce castings, sheet, and extrusions for cars and trucks. Demand from EV production has spurred investment in lighter metals like aluminum and high-strength steel.
Indiana remains one of the most steel-intensive states in the country. The Lake Michigan shoreline hosts massive integrated steel facilities in East Chicago, Gary, and Burns Harbor. Indiana’s location offers direct access to iron ore shipments via the Great Lakes and a strong rail system for outbound products.
New York’s metals producers serve diverse markets—from copper wire and tool steel for industrial applications to specialty foundries producing high-value parts. Its location supports both regional demand in the Northeast and exports through Atlantic ports.
Wisconsin has deep roots in foundry production, supplying cast parts for agriculture, machinery, and construction equipment. Many of its firms are long-standing, family-owned businesses with strong regional ties. The state’s skilled workforce keeps it competitive in precision castings.
Florida’s industry leans toward aluminum and nonferrous production, often serving aerospace and marine applications. Its ports also make it a natural export gateway for metals, particularly to Latin America. Construction growth in the Southeast further sustains local demand.
These hubs reflect a mix of legacy Rust Belt infrastructure, energy-driven growth in Texas, and innovation-focused clusters in California.
These metro areas remain synonymous with American steel and metals production, each serving as a critical anchor for the national supply chain.
The U.S. primary metals sector continues to evolve, balancing challenges with new opportunities:
From century-old blast furnaces to advanced aerospace foundries, the U.S. primary metals industry remains a pillar of the nation’s manufacturing base. While the sector faces cost pressures, sustainability mandates, and trade uncertainties, it is also poised for growth as new technologies and clean energy projects expand demand.
For suppliers, service providers, and policymakers, the message is clear: America’s metals sector is not standing still. It is adapting—rebuilding capacity, investing in technology, and preparing for the next era of industrial growth.
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