Cupro-Nickel 90/10 Sheet
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%.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If zinc content exceeds 1% but under 5% nickel
Becomes copper-zinc base alloy (brass) per subheading note (a), changing to 7409.21.
If thickness ≤0.15 mm
Qualifies as copper foil under Chapter 74 heading 7407 for thinner profiles.
If other alloy not meeting cupro-nickel or nickel silver definitions
Falls to other copper alloy plates/sheets if composition doesn't match notes (c) or (d).
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Import Tips & Compliance
• 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
Related Products under HTS 7409.40.00.00
Nickel Silver Tableware Blank Sheet
Blank sheet of nickel silver for cutlery production, >0.15 mm thick. HTS 7409.40.00.00 for nickel silver alloys.
Cupro-Nickel Heat Exchanger Plate
Flat plate of 90/10 cupro-nickel for heat exchangers, thickness >0.15 mm. HTS 7409.40.00.00 copper-nickel alloy.
Nickel Silver Architectural Trim Strip
Decorative strip of nickel silver alloy >0.15 mm for building trim. HTS 7409.40.00.00.
Cupro-Nickel Chemical Processing Sheet
Corrosion-resistant sheet of cupro-nickel for chemical tanks. HTS 7409.40.00.00.
Nickel Silver Musical Instrument Sheet
Sheet nickel silver for trumpet valves, >0.15 mm. HTS 7409.40.00.00.
Cupro-Nickel Desalination Plant Plate
Plate for desalination evaporators, cupro-nickel alloy. HTS 7409.40.00.00.