Seamless Carbon Steel Boiler Tube from China
A seamless tube made from nonalloy steel with a wall thickness exceeding 4 mm, designed for high-pressure boiler applications in industrial settings. It falls under HTS 7304.90.10.00 as it is a seamless hollow profile of iron or nonalloy steel with the specified wall thickness, suitable for transporting fluids or gases under pressure.
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 seamless construction via mill test certificates to avoid misclassification as welded pipes under 7306
• Ensure wall thickness documentation exceeds 4 mm; common pitfall is measurement discrepancies leading to reclassification
• Comply with ASME standards for boiler tubes; provide material composition certs proving nonalloy steel content