</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

Alloy Steel Square Tubing 50x50x2mm from China

Welded square tube made from alloy steel with 50mm x 50mm cross-section and 2mm wall thickness, used in structural frameworks and machinery guards. It falls under HTS 7306.61.70 as it is a welded, noncircular hollow profile of square cross-section from alloy steel with wall thickness less than 4mm.

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

Verify alloy steel composition via mill test certificate to confirm classification under alloy steel subheading

Ensure wall thickness measurement is documented as under 4mm to avoid reclassification to thicker wall codes

Provide evidence of welded construction if inspected, as seamless would shift to different heading