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Heavy Wall Alloy Steel Welded Pipe for Pressure Vessels from China

Longitudinally welded alloy steel pipe with OD >406.4 mm and thick walls for fabrication into pressure vessel shells. HTS 7305.31.60 due to welded circular cross-section in large sizes of alloy steel. Used in petrochemical reactor construction.

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

Include ASME Section VIII compliance docs; pressure vessel end-use doesn't change HTS but aids verification

Measure and certify alloy elements (e.g

chromium >1.25%) to distinguish from carbon steel