Admiralty Brass Billet
Unwrought copper-zinc alloy billet with 1% tin addition for corrosion resistance in marine applications, classified as other copper alloy under 7403.29.0180 since tin under 3% threshold.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If tin content reaches 3%+
Tin predominance or 3%+ threshold shifts to copper-tin bronze alloys.
If cast into specific shapes under 5kg
Billets under certain weights may classify as castings rather than unwrought.
If intended for jewelry fabrication
Waste/scrap classification applies if imported specifically for jewelry manufacture.
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Import Tips & Compliance
• Include chemical analysis report confirming tin <3% to maintain brass classification
• Label with exact alloy designation (e.g
• C44300) matching UNS standards for customs verification
• Avoid contamination during shipping to prevent reclassification as scrap under Chapter 74 note
Related Products under HTS 7403.29.01.80
Leaded Brass Ingot 60/40
A copper-zinc alloy ingot containing 60% copper and 40% zinc with added lead for improved machinability, classified under HTS 7403.29.0180 as unwrought refined copper alloy other than specified brasses.
Muntz Metal Ingot
Alpha-beta duplex copper-zinc alloy ingot (60Cu-40Zn) used for hot working into sheets and plates, falls under other copper alloys 7403.29.0180 as refined unwrought brass.
Naval Brass Slab
Unwrought copper-zinc alloy slab with 1% tin and lead for propeller shafting, classified 7403.29.0180 as other copper alloy maintaining brass base composition.
Cartridge Brass Anode
Unwrought 70/30 copper-zinc alloy castings used as anodes in electroplating baths, falls under HTS 7403.29.0180 as refined other copper alloys.
Yellow Brass Billet C36000
Free-machining copper-zinc-lead alloy billet (C36000) for screw machine products, classified under 7403.29.0180 as unwrought other copper alloys.
Architectural Bronze Ingot
Low-tin copper-zinc alloy ingot (<3% Sn) for architectural castings, classified 7403.29.0180 as brass rather than true bronze per subheading definitions.