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The world’s third-largest steel producer, making most of its steel in electric arc furnaces.
The USA ranked third in worldsteel’s 2025 production table. Nucor, Steel Dynamics, Cleveland-Cliffs and U.S. Steel are the largest producers, and steel imports are subject to Section 232 tariffs.
81.9 Mt in 2025 (79.5 Mt in 2024)
90.9 Mt of finished steel in 2025 (89.1 Mt in 2024)
Source: worldsteel, World Steel in Figures 2026. More figures on Steel statistics.
Who sets standards in the USA, the main ASTM steel standards, and Buy America rules.
The American National Standards Institute (ANSI) is the USA’s member of ISO. Most steel product standards used in the USA are written by ASTM International.
Sources: ISO — national member · ASTM International
ASTM A615/A615M covers deformed and plain carbon-steel bars for concrete reinforcement; ASTM A706/A706M covers low-alloy bars where restricted properties or better weldability are needed.
Sources: ASTM — A615/A615M · ASTM — A706/A706M
ASTM A992/A992M covers rolled steel structural shapes for building framing, bridges and general structural use.
Source: ASTM — A992/A992M
On federal-aid highway projects, steel and iron built into the work must be manufactured in the United States, every step from melting to coating, apart from a small allowance for foreign material.
Source: 23 CFR 635.410 (Cornell LII)
The standards bodies on our steel grades & standards page: ANSI, ASTM.
Listed companies that name the product on their profile.
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