Seamless Steel Penstock Pipe Section from China
Large diameter seamless penstock pipes for hydroelectric plants, non-alloy steel, OD >406.4 mm, wall <19 mm. Classifies HTS 7304.39.0076 as other seamless steel tubes. Carries water under pressure to turbines.
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 B31.3 process piping code documentation required
• Hydrostatic test pressures must match design specs
• Segmented shipment declarations for long penstocks