Seamless Brass Refrigerator Tubing
Seamless tubing made from copper-zinc base alloy (brass) used in refrigeration systems for refrigerant flow. It falls under HTS 7411.21.10.00 as seamless copper alloy pipe of brass composition, meeting the definition where zinc predominates over other elements except copper.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If welded or brazed construction
Welded brass tubes fall under the 'other' subheading within copper-zinc alloys, distinct from seamless.
If copper-nickel-zinc (nickel silver) alloy with Ni >=5%
Alloys with 5%+ nickel content are classified separately as nickel silvers per subheading note (c).
If for industrial pressure use, possibly reclassified as steel equivalent
End-use in high-pressure systems may lead to classification under iron/steel tubes if function dominates over material.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide mill test certificates confirming copper-zinc base alloy composition with zinc > other elements and Ni <5%, Sn <3% to avoid reclassification
• Ensure seamless construction documentation; welded tubing shifts to 7411.21.50.00
• Label with exact alloy specs and pressure ratings for customs valuation and safety compliance
Related Products under HTS 7411.21.10.00
Seamless Brass Hydraulic Hose Line
Seamless brass pipe used in hydraulic systems for fluid transfer in machinery. Classified under HTS 7411.21.10.00 due to its seamless construction and copper-zinc base alloy meeting brass criteria (zinc predominant, low Ni/Sn).
Seamless C44300 Brass Heat Exchanger Tube
C44300 grade seamless brass tube (70Cu-30Zn-Arsenical) for heat exchangers resisting corrosion. HTS 7411.21.10.00 as seamless brass copper-zinc base alloy.
Seamless Yellow Brass 3/8 Inch Pipe
Yellow brass (high zinc 65Cu-35Zn) seamless pipe 3/8" for plumbing and instrumentation. HTS 7411.21.10.00 seamless copper-zinc base alloy.
Seamless Brass Evaporator Coil Tubing
Seamless brass tubing formed into coils for HVAC evaporator units. Under 7411.21.10.00 as seamless brass despite coiling post-manufacture.
Seamless Cartridge Brass Hydraulic Tubing
Cartridge brass (70/30 Cu/Zn) seamless tubing for high-pressure hydraulics. HTS 7411.21.10.00 seamless copper-zinc pipe.
Seamless Brass Medical Gas Pipe
Seamless brass pipe for oxygen/nitrous oxide delivery in hospitals. 7411.21.10.00 for seamless brass construction.