Key Takeaways

• North American steelmakers have invested nearly $50 billion in capital projects over the past five years.
• Industrial Info Resources identified 306 active steel projects valued at $47 billion across the U.S. and Canada.
• Data centers, semiconductor plants and infrastructure work are driving steel demand growth.
• Section 232 tariffs continue to reduce imports and support domestic mill utilization.
• Steel producers are increasingly shifting capital toward downstream fabrication and value-added operations.

AISTech Panel Sees Strong Outlook for U.S. Steel Investment

Steel producers expect strong manufacturing and infrastructure demand to continue supporting capital investment and mill activity across North America, according to executives speaking at AISTech 2026 in Pittsburgh. The discussion highlighted nearly $50 billion in recent steel-sector capital spending and growing demand tied to data centers, semiconductor facilities and public infrastructure work, reports Joe Govreau for IIR News Intelligence.

Executives from CMC, U.S. Steel, Nucor, Metallus and Orion Steel discussed how modernization projects, new mill construction and downstream expansion are reshaping domestic steel production capacity. According to Industrial Info Resources data, 306 active steel projects totaling roughly $47 billion are currently underway or planned in the U.S. and Canada. That includes $10.5 billion under construction, $3.4 billion in engineering and more than $33 billion in planning.

For wall and ceiling contractors, the continued expansion of steelmaking capacity has implications for commercial construction activity, material availability and project backlogs tied to industrial and institutional work. Demand growth in data centers and semiconductor manufacturing is expected to sustain activity in interior build-outs, specialty ceilings, fire-rated assemblies and high-performance wall systems.

Nucor officials said the company expects steel demand to grow between 5 and 10 percent over the next year. Company executives identified data centers as a major driver, now accounting for approximately 10 percent of Nucor’s order backlog. Semiconductor fabrication facilities and electrical infrastructure expansion also continue generating demand for structural steel and related building systems.

The growth in power generation and transmission infrastructure tied to artificial intelligence and data center development could further support construction activity. Executives cited projections from the Electric Reliability Council of Texas indicating power demand could increase substantially over the next decade, creating additional opportunities for industrial and commercial construction.

Infrastructure spending also remains a significant demand driver. CMC executives noted that only about half of the federal infrastructure funding authorized under recent legislation has been deployed, suggesting additional work remains in the pipeline. Continued transportation, utility and public works projects could help sustain demand for interior finishes in schools, transit facilities, healthcare projects and civic buildings.

Steelmakers also said Section 232 tariffs continue supporting domestic production. Industry representatives noted steel imports declined 25 percent during the first quarter of 2026 compared to the same period in 2025. U.S. Steel executives pointed to the planned restart of the company’s tin mill at Gary Works as an example of investment supported by trade protections.

While major greenfield steelmaking expansion may begin slowing as new facilities come online, producers said future investment is expected to shift toward downstream fabrication and steel-adjacent operations. That transition could create additional manufacturing and warehouse construction opportunities requiring drywall, acoustical ceiling and fireproofing systems.

Nucor continues construction of its new steel sheet mill in Apple Grove, West Virginia, which is expected to begin operations in 2027. Meanwhile, U.S. Steel, acquired by Nippon Steel in 2025, plans approximately $14 billion in capital expenditures through 2028. Foreign-owned producers including Hyundai Steel and POSCO are also pursuing expansion opportunities in the U.S. market, including a proposed $6 billion integrated steel mill project in Louisiana.

For contractors tracking commercial and industrial market conditions, the sustained level of steel-sector investment signals continued momentum in manufacturing construction and related interior build-out activity. The combination of reshoring, infrastructure funding and energy-intensive development remains supportive of long-term construction demand across multiple sectors.