Cupro-Nickel 90/10 Sheet from Japan
A flat sheet of 90% copper and 10% nickel alloy (cupro-nickel) with thickness exceeding 0.15 mm, used primarily for heat exchanger plates in marine and desalination systems. This product falls under HTS 7409.40.00.00 because it is a copper-nickel base alloy plate or sheet meeting the subheading note (d) definition, where nickel predominates over other elements and zinc is under 1%.
Duty Rate — Japan → United States
53%
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
9903.05.900%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
• Verify alloy composition via certified mill test report (CMTR) showing nickel predominance and zinc <1% to confirm cupro-nickel classification
• Ensure thickness documentation exceeds 0.15 mm; thinner material shifts to Chapter 74 foil headings