Cupro-Nickel Desalination Plant Pipe
Large-diameter pipe for reverse osmosis desalination plants, leveraging cupro-nickel’s resistance to chloride pitting. Covered by HTS 7411.22.00.00 as copper-nickel base alloy tube per note (d).
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as unwrought bars for pipe production
Unwrought alloy forms in 7407, not fabricated tubes.
If integrated into complete desalination filtering machinery
Machinery for filtering water classified in 8421.
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Import Tips & Compliance
• Large sizes (>114mm) need wall thickness verification vs tube/pipe distinction
• Include NACE MR0175 compliance for sour service if applicable
• Avoid bulk packing confusion with scrap; clear commercial invoice essential
Related Products under HTS 7411.22.00.00
Cupro-Nickel 70/30 Instrumentation Tubing
Precision-drawn tubing from 70/30 cupro-nickel alloy, used in chemical processing plants for instrumentation lines due to high resistance to corrosive fluids. This product is covered by HTS 7411.22.00.00 as a copper-nickel base alloy tube with no significant zinc content.
Cupro-Nickel Seamless Pipe 90/10
A seamless pipe made from 90% copper and 10% nickel (cupro-nickel alloy), used primarily in marine and desalination applications for its excellent corrosion resistance in seawater. This falls under HTS 7411.22.00.00 as it is a copper-nickel base alloy tube per subheading note (d), with nickel predominating over other elements and zinc under 1%.
Nickel-Silver Condenser Tube
A thin-walled tube of nickel-silver (copper-nickel-zinc alloy with ≥5% Ni), designed for heat exchangers and condensers in industrial cooling systems. Classified under HTS 7411.22.00.00 per subheading note (c) for copper-nickel-zinc base alloys where nickel is at least 5% by weight.
Nickel-Silver Decorative Pipe
Polished nickel-silver pipe used in architectural fixtures and luxury furniture legs for its silver-like appearance and durability. Falls under HTS 7411.22.00.00 as copper-nickel-zinc base alloy per note (c), distinguished from functional tubes by end-use but same material classification.
Cupro-Nickel Heat Exchanger Tubing
Finned or straight tubing from cupro-nickel alloy for HVAC and power plant heat exchangers, offering superior thermal conductivity and erosion resistance. Classified in HTS 7411.22.00.00 under copper-nickel base alloys as defined in subheading note (d).
Nickel-Silver Marine Exhaust Pipe
Corrosion-resistant pipe for boat exhaust systems made from nickel-silver alloy, handling high temperatures and saltwater exposure. HTS 7411.22.00.00 applies due to copper-nickel-zinc composition meeting note (c) criteria.