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
35%
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
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
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