Of iron or nonalloy steel
Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds 406.4 mm, of iron or steel: > Other, welded: > Other: > Of iron or nonalloy steel
Duty Rate (from China)
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
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
Products classified under HTS 7305.39.10.00
Welded Carbon Steel Pipe for Water Main
Large-diameter welded pipe made from nonalloy steel, with external diameter over 406.4 mm, used in municipal water distribution systems. Classified under 7305.39.1000 due to its welded construction, circular cross-section, and iron/nonalloy steel material. Exceeds the size threshold for smaller pipes in other headings.
Large Diameter Welded Steel Ventilation Duct Pipe
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.
Carbon Steel Large Welded Sewer Pipe
Welded pipe from nonalloy steel with OD >406.4 mm, designed for sanitary sewer mains with protective bituminous coating. Classifies in 7305.39.1000 as other large welded circular pipes of iron/nonalloy steel. Excludes specialized boiler tubes.
Welded Steel Pipe for Industrial Chimney Stack
Large OD welded nonalloy steel pipe sections for exhaust stacks on factories, >406.4 mm diameter. Falls under 7305.39.1000 as other circular welded tubes of iron/nonalloy steel. Designed for bolted sectional assembly.
Nonalloy Large Diameter Penstock Pipe
Welded nonalloy steel pipe OD >406.4 mm for low-pressure penstocks in small hydro plants. 7305.39.1000 covers these other welded circular steel tubes. Below pressure ratings for boiler tubes.
Welded Steel Pipe for Grain Elevator Legs
Nonalloy steel welded large-diameter pipe (>406.4 mm OD) forming vertical legs for agricultural silos. Classified 7305.39.1000 as other welded circular steel tubes not structural steel.
Industrial Water Cooling Tower Basin Pipe
Welded nonalloy steel pipe OD exceeding 406.4 mm for water distribution in cooling tower basins. 7305.39.1000 for large welded circular tubes of iron/steel. Corrosion-resistant for wet environments.
Nonalloy Steel Welded Culvert Pipe
Heavy-duty welded pipe of iron or nonalloy steel, OD >406.4 mm, corrugated for stormwater drainage under roads. Fits 7305.39.1000 for other welded circular pipes not specialized for casing, line, or piling. Circular cross-section distinguishes from square/rectangular profiles.
Welded Iron Steel Pipe for Structural Supports
Nonalloy steel welded pipe, external diameter >406.4 mm, used as columns or bracing in construction frameworks. 7305.39.1000 applies to these large circular welded tubes not dedicated to oilfield uses. Meets dimensional and material criteria precisely.
Heavy Wall Welded Nonalloy Steel Pipe
Extra-thick wall welded pipe of nonalloy steel, OD exceeding 406.4 mm, for slurry transport in mining. 7305.39.1000 for other welded tubes meeting size and material specs. Not for mechanical tubing applications.