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HSChapter 74
U.S. exports of unwrought copper alloys (nesoi) (HS 740329) totaled $3.3M in July 2026.
Importers of Unwrought Copper Alloys (NESOI) paid $15K in duties in July 2026 — an effective duty rate of 1.7% on $929K in dutiable value, based on actual customs collections rather than the published tariff schedule. Unwrought Copper Alloys (NESOI) imports of $1.1M in July 2026 ran 34% below the year-to-date monthly average of $1.7M.
Last updated: July 2026 dataNickel silver (copper-nickel-zinc) and cupro-nickel alloys occupy a dedicated line (7403290110) within this residual heading, reflecting their distinct commercial roles in coinage, marine heat exchangers, and decorative applications — while all other unwrought copper alloys not elsewhere specified fall under 7403290180. New Zealand and Switzerland lead US import supply, a sourcing pattern that reflects specialty alloy production rather than commodity copper flows. Importers should pay close attention to alloy composition documentation, as the boundary between this heading and the named alloy subheadings (brass at 740321, bronze at 740322) turns on which non-copper element is primary.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
24 shipments/mo
Both nickel silver (copper-nickel-zinc, sometimes called German silver) and cupro-nickel (copper-nickel binary or near-binary alloys) are grouped together under 7403290110 in the US tariff schedule. Despite their different compositions and end uses — nickel silver is used in cutlery, musical instruments, and decorative hardware, while cupro-nickel is used in coinage and marine condensers — they share the same 10-digit line. The alloy type should still be specified on commercial documentation for downstream traceability.
CBP may issue a CF-28 or CF-29 request if the alloy's composition is not clearly documented and there is ambiguity about whether it belongs in a named subheading (brass, bronze, nickel silver/cupro-nickel) versus the residual basket. Providing a certified mill analysis showing the percentage of each alloying element, along with the producer's commercial alloy designation, is typically sufficient to resolve the classification question.
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HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 7403290180 | Unwrought Copper Alloys, NESOI | $984K | 1.43% | 80.13% | $14K |
| 7403290110 | Unwrought Nickel Silver A Cupro-Nickel Base Alloys | $154K | 0.91% | 91.44% | $1K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7403290180 | Unwrought Copper Alloys, NESOI | $2.4M |
| 7403290110 | Unwrought Nickel Silver A Cupro-Nickel Base Alloys | $828K |
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.
ImportsExports
Imports
$1.1MYoY · Pro
Exports
$3.3MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Exports · July 2026
destination
Germany and Taiwan together take 76% of it.
customs district
origin
entry
rate provision · imports
18.4% enters free of duty; the effective duty rate is 1.36%.