Cupro-Nickel Hollow Profile Rod for Marine Propulsion Shafts
Hollow profile rod made from copper-nickel base alloy (90/10 cupro-nickel), designed for use in marine propeller shafts due to its excellent corrosion resistance in seawater. Classified under HTS 7407.29.16.10 as a hollow profile of copper-nickel base alloy. The uniform cross-section and extruded form distinguish it from bars or rods.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If made of copper-zinc base alloys (brass)
Brass profiles fall under different subheading due to zinc predominance over nickel; nickel silvers specifically excluded.
If imported as finished marine shaft component
If machined to final specifications for specific machinery, it may classify as a parts of gas/liquid pumps rather than unfinished profile.
If supplied in straight lengths over 2 meters primarily for tube bending
Long straight hollow sections intended for coiling or bending classify as tube rather than rigid profiles.
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Import Tips & Compliance
• Verify alloy composition meets copper-nickel base alloy definition (nickel predominates, zinc ≤1%) with mill test certificates to avoid reclassification
• Provide detailed engineering drawings showing hollow profile cross-section for Customs to confirm it's not a tube or pipe under 7411
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