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
75%
Rate breakdown
9903.82.0250%Except as provided for in headings 9903.82.14, 9903.85.67 and 9903.85.68, articles of aluminum, of steel or of copper and derivative aluminum or steel articles, as provided for in subdivisions (c)(i)–(v) of U.S. note 16 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
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
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