ASTM A500 Grade B Alloy Square Tube 200x200x10mm from China
Heavy-walled welded square tube per ASTM A500 Grade B alloy steel standard, 200mm sides with 10mm thickness for offshore platforms and bridges. HTS 7306.61.30.00 applies to its square cross-section, welded construction, and alloy steel material with thick walls.
Duty Rate — China → United States
75%
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
9903.91.0125%Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 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
• Include ASTM certification and yield strength data proving structural quality; ensure no internal coatings that could imply different use
• Common error: classifying long lengths over 6m as bars under 7304
• Pitfall: verify no circular ends affecting cross-section