Large Diameter Welded Steel Ventilation Duct Pipe from China
Welded nonalloy steel pipe with OD exceeding 406.4 mm, used for industrial HVAC exhaust systems. Covered by 7305.39.1000 as other welded circular tubes not for boilers or pressure vessels. Plain ends suitable for flanged connections.
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
• Ensure no internal spiral ribs that might classify as flexible tubing under different provisions
• Document wall thickness to confirm not thin-walled for structural vs pressure applications
• Label clearly as 'other tubes' to prevent confusion with Chapter 84 ducting assemblies