Nonalloy Large Diameter Penstock Pipe from China
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.
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
• ASME Section VIII compliance docs required for any pressure containment claims
• Stiffener ring attachments may trigger parts classification review
• Country of smelt/melt origin critical for Buy America compliance