Alloy Steel Square Hollow Structural Section 100x100x6mm from Mexico
Welded square tube of alloy steel with 100mm x 100mm outer dimensions and 6mm wall thickness, used in structural frameworks for buildings and machinery. Classified under HTS 7306.61.30.00 as a welded, noncircular (square cross-section) tube of alloy steel with wall thickness over 4mm. Meets chapter definition for other tubes and hollow profiles.
Duty Rate — Mexico → United States
50%
Rate breakdown
9903.82.0250%Except as provided for in headings 9903.82.14, 9903.85.67 and 9903.85.68, articles of aluminum, of steel or of copper and derivative aluminum or steel articles, as provided for in subdivisions (c)(i)–(v) of U.S. note 16 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Verify alloy steel composition meets ASTM A500 Grade C or equivalent for classification; provide mill test certificates showing wall thickness ≥4mm
• Ensure weld seam inspection reports to avoid reclassification as seamless
• Common pitfall: insufficient documentation on noncircular cross-section