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
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
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