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Structural Seamless Steel Hollow Section 15-inch OD 25 mm Wall from China

Heavy-walled seamless circular hollow profile of nonalloy steel, 381 mm OD and 25 mm wall thickness, used in offshore platform construction. Meets HTS 7304.39.0072 criteria for seamless iron/nonalloy steel tubes with OD 285.8-406.4 mm and walls ≥19 mm. Provides high strength for load-bearing applications.

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

Declare intended structural use but classify based on form, not application, to prevent shifts to line pipe subheadings

Anti-dumping duties may apply; check Commerce scope rulings for Chinese-origin hollow sections

Bundle in sets only if sold as such; individual pipes classify separately from assembled structures