HS Code for Cupronickel tube

Cupronickel tubes and pipes fall under HS code 7411.22. This classification is determined by the material composition and the physical form of the product as defined in Chapter 74 of the Harmonized System. Heading 7411 specifically addresses tubes and pipes of copper. Within this heading, the subheadings are organized by the type of copper or copper alloy used. Subheading 7411.22 is reserved for tubes made of copper-nickel base alloys (cupro-nickel) or copper-nickel-zinc base alloys (nickel silver). To qualify for this code, the product must meet the definition of "tubes and pipes" provided in the Chapter 74 legal notes: they must be hollow products, coiled or not, which have a uniform cross-section with only one enclosed void along their whole length. The wall thickness must also be uniform. These tubes are widely used in heat exchangers, condensers, and marine piping systems due to their ability to withstand high-velocity seawater flow and resist stress corrosion cracking.

Products Included

• Cupronickel condenser tubes
• Nickel silver hollow pipes
• Marine heat exchanger tubing
• Copper-nickel hydraulic lines
• Seawater cooling system pipes

Common Misclassification

Cupronickel tubes are often misclassified under 7411.10, which is only for refined (unalloyed) copper tubes. They may also be confused with 7412.20, which covers copper alloy tube or pipe fittings (such as couplings or elbows) rather than the tubes themselves. If the product is not hollow or does not have a uniform wall thickness, it may be classified as a profile under 7407.29.

FAQ

What is the HS code for cupronickel tube?

The HS code for cupronickel tube is 7411.22, specifically for tubes and pipes of copper-nickel base alloys.

Are cupronickel pipe fittings included in this code?

No, pipe fittings such as elbows, sleeves, and flanges are classified under HS code 7412.20, not 7411.22.