Section 232 tariffs apply to steel and aluminum mill products used as inputs. Finished fabricated articles may or may not be separately subject to Section 232 depending on their specific HTS classification, so importers should confirm the applicable tariff treatment for each product line with a licensed customs broker.

Raw structural shapes (beams, angles, channels) are classified under HTS Chapter 72 or 76, while fabricated articles — those cut, drilled, welded, or assembled for a specific end use — typically fall under HTS Chapter 73 or 76 subheadings. The degree of fabrication and intended end use are the primary classification determinants.