Section 232 tariffs apply to steel and aluminum articles, which can include many fabricated metal products depending on their composition and form. Importers should confirm whether their specific articles qualify as covered steel or aluminum products and whether any exclusions or alternative duty treatments apply, ideally with guidance from a licensed customs broker.

The primary challenge is distinguishing finished fabricated articles from semi-finished mill products (e.g., bars, rods, sheet) or from machinery and mechanical parts. The intended use, degree of fabrication, and material composition all factor into correct NAICS and HTS classification, and errors can trigger duty rate differences or trade remedy exposure.