Brass Refrigeration Tubing 3/8 Inch
3/8-inch OD annealed brass tubing from copper-zinc alloy used in HVAC and refrigeration systems for refrigerant lines. Classified under HTS 7411.21.50.00 as 'other' brass tubes, with zinc as the predominant alloying element per chapter definitions.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If copper-nickel base alloy
Per note (d), nickel-predominant alloys with ≤1% zinc classify separately from zinc-based brasses.
If specifically of complex shapes like coiled capillary
Certain specialized brass tube profiles may fall under principal 7411.21 but 'other' covers standard rounds.
If imported as parts of air conditioning machinery
End-use as AC components shifts to Chapter 84 per notes, not raw tubes.
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Import Tips & Compliance
• Include NSF/ANSI 61 certification for potable water contact if applicable; test reports prove alloy meets brass criteria
• Declare inner/outer diameters precisely; coiled vs straight lengths don't affect classification but impact valuation
Related Products under HTS 7411.21.50.00
Brass Plumbing Pipe 1/2 Inch
A 1/2-inch diameter seamless brass pipe made from copper-zinc base alloy (brass) used for potable water supply lines in residential plumbing. It falls under HTS 7411.21.50.00 as 'other' copper-zinc base alloy tubes not specified elsewhere in the subheading, meeting the definition where zinc predominates over other elements with less than 5% nickel.
Brass Hydraulic Line Tubing 1 Inch
Heavy-duty 1-inch brass tube from copper-zinc base alloy for hydraulic fluid lines in machinery. HTS 7411.21.50.00 applies to these 'other' brass pipes not qualifying for precision or specific diameter exclusions.
Brass Gas Distribution Pipe 3/4 Inch
3/4-inch brass pipe from copper-zinc alloy for natural gas distribution lines in buildings. Falls under 7411.21.50.00 as other brass tubes, zinc-dominant per subheading note (a).
Brass Instrument Tubing 5/16 Inch
5/16-inch drawn brass tubing from copper-zinc base alloy used to fabricate musical instrument components like trumpet valves. HTS 7411.21.50.00 covers these other brass tubes.
Brass Heat Exchanger Tubing 5/8 Inch
5/8-inch admiralty brass tube (C44300) with arsenic for heat exchangers in boilers/condensers. Under HTS 7411.21.50.00 as other copper-zinc base alloy tubes.
Brass Condenser Coil Tubing 1/4 Inch
1/4-inch capillary brass tubing coiled for refrigeration condenser coils, copper-zinc alloy. HTS 7411.21.50.00 for other brass tubes.