U.S. imports of Unwrought Copper-Zinc Alloys (Brass) (HS 740321) totaled $12.9M in August 2026, imported from 24 countries.
Importers of Unwrought Copper-Zinc Alloys (Brass) paid $8K in duties in August 2026, an average duty rate of 0.06% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataBrass — copper alloyed primarily with zinc — is one of the most widely traded non-ferrous alloy families, serving the plumbing fittings, ammunition, electrical connectors, and decorative hardware industries. Canada leads US import supply under this heading, with Italy and Spain also significant sources, reflecting North American supply-chain integration and Europe's established brass foundry sector. The single line 7403210000 covers all unwrought brass regardless of zinc content or alloy grade, so importers dealing with leaded brass, naval brass, or other specialty compositions should confirm that the material has not been worked into a wrought form, which would shift classification to later headings.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
69 import shipments a month
For classification purposes at the 6- and 10-digit level under 7403210000, all unwrought copper-zinc base alloys are treated as a single category regardless of zinc percentage or the presence of minor alloying additions. However, the alloy composition is commercially significant and should be documented on the invoice and mill certificate, as it affects downstream duty treatment if the material is further processed and reclassified.
Unwrought brass retains its as-cast or as-melted structure and has not been subjected to hot or cold working such as extrusion, rolling, or drawing. Once brass has been extruded into rod, bar, or profiles, it moves to heading 7407; if drawn into wire, it falls under 7408. The presence of a worked surface finish, dimensional tolerances consistent with fabricated product, or evidence of mechanical reduction in cross-section are indicators that the material is wrought rather than unwrought.
Subheading 2 of 7 in heading 7403
Subheading 740321 · $12.9M of $2.8B
Trade Directory
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ImportsExports
Imports
$12.9MYoY · free account
Exports
$4.3MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $141.3M of Unwrought Copper-Zinc Alloys (Brass) and exported $51.3M.
Through August 2026. Source: U.S. Census Bureau.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 7403210000 | Unwrought Copper-Zinc Based Alloys (Brass) | $12.9M | 0.06% | 1.90% | $8K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7403210000 | Unwrought Copper-Zinc Based Alloys (Brass) | $4.3M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Imports · August 2026
origin
Canada and Netherlands together supply 99% of it. India pays 11.0% duty; Canada 0.0%.
customs district
destination
entry
rate provision · imports
98.1% enters free of duty; duty collected equals 0.06% of imports for consumption.