C70600 Copper-Nickel Seamless Pipe
Seamless pipe from C70600 90/10 copper-nickel alloy, fitting subheading note (d) with nickel predominating over other elements and zinc ≤1%. Falls under HTS 7411.29.50.00 as other copper alloy pipes for marine and desalination applications due to excellent seawater resistance.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If made of copper-nickel-zinc nickel silver alloys
Nickel silvers with ≥5% nickel and significant zinc shift to a separate subheading from pure copper-nickel alloys.
If welded rather than seamless construction
Welded copper alloy pipes are classified under Chapter 73 as iron/steel equivalents when fabrication method changes.
If imported as unfinished tube stock for further manufacturing
Unfinished articles of copper alloys may fall under 'other' in 7419 if not meeting tube/pipe dimensional specs.
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Import Tips & Compliance
• Submit chemical analysis reports confirming nickel predominance and zinc ≤1% to validate copper-nickel base alloy status
• For Schedule B reporting, specify alloy UNS number and dimensions to match HTS statistical suffixes
• Beware of anti-dumping duties on certain copper-nickel pipes from specific countries; check Commerce Department listings
Related Products under HTS 7411.29.50.00
C12200 Phosphor Bronze Seamless Tube
A seamless tube made from C12200 phosphor bronze, a copper-tin alloy where tin predominates over other elements per subheading note (b). Classified under HTS 7411.29.50.00 as other copper alloy tubes not specified elsewhere in the heading. Used in heat exchangers and plumbing for its corrosion resistance.
C69430 Silicon Bronze Tube
Condenser tube of C69430 silicon bronze, copper-silicon alloy classified under 'other' copper alloys in HTS 7411.29.50.00. Meets bronze definition indirectly through chapter notes; used in marine cooling systems.
Naval Brass Tube C46400
Drawn seamless tube C46400 naval brass (60/40 Cu-Zn with 1% tin), zinc-predominant brass per note (a). HTS 7411.29.50.00 other category for propeller shafts and valve stems.
C65100 Low Silicon Bronze Pipe
Pipe from C65100 6% silicon bronze, copper-silicon base alloy in HTS 7411.29.50.00 other category. Excellent for welding and structural marine applications.
C83600 Leaded Red Brass Pipe
Continuous cast pipe C83600 leaded red brass (85/5/5/5 Cu-Zn-Sn-Pb), zinc/tin balance but classified brass per predominant zinc. HTS 7411.29.50.00 other alloys.
C92200 Steam Bronze Tube
C92200 tin bronze tube (Cu88-Sn6-Zn6-Pb), tin predominant fitting note (b). HTS 7411.29.50.00 for steam and valve applications.