Product classification
HS code for Bronze coil: 7409.31
Copper, strip, of a thickness exceeding 0.15mm, of copper-tin base alloys (bronze), in coils.
Classification of bronze coil under HS 7409.31
Bronze coils fall under HS code 7409.31. This classification is determined by the material composition, the thickness of the product, and its physical form. Heading 7409 covers copper plates, sheets, and strip, of a thickness exceeding 0.15 mm. Within this heading, the 7409.3x series is dedicated to copper-tin base alloys (bronze). Subheading 7409.31 specifically identifies these products when they are presented in coils. To qualify for this code, the material must be flat-rolled and wound into a spiral or coil. The thickness is a critical factor; if the material were 0.15 mm or less, it would be classified as copper foil under heading 7410. The distinction between in coils and not in coils is the primary separator between 7409.31 and 7409.39. These products are widely used in manufacturing springs, electrical connectors, and decorative architectural elements due to their corrosion resistance and mechanical strength. Proper documentation must specify the alloy percentage to confirm the copper-tin base.
- Covers
- Rolled bronze strip in coils
- Bronze sheet metal in rolls
- Phosphor bronze coils
- Coiled bronze plate exceeding 0.15mm
- Industrial bronze ribbon in coils
- Also under 7409.31
- Wieland Phosphor Bronze Strip
- KME Bronze Coil
- Aurubis Bronze Strip
- Luvata Phosphor Bronze Coil
Codes often confused with 7409.31
Common mistake. Bronze coils are often misclassified under 7410.22 if the thickness is 0.15 mm or less, which designates the product as foil. They are also confused with 7409.39, which is the code for bronze sheets and plates that are not in coils (flat pieces). Another common error is using 7409.11, which is reserved for refined copper coils rather than bronze alloys.
Top exporters and importers of HS 740931 (the code used for bronze coil), 2025
In 2025, the largest exporter of HS 740931 (the code used for bronze coil) in UN Comtrade data was Germany, with 41% of world exports; the largest importer in UN Comtrade data was the United States, with 16% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 740931, not only bronze coil.
Top exporters 2025 · share of world exports
- 1 Germany $331M 41% of world exports
- 2 Japan $139M 17% of world exports
- 3 China $124M 15% of world exports
World total: $804M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $125M 16% of world imports
- 2 China $102M 13% of world imports
- 3 India $100M 13% of world imports
World total: $799M Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM codes for bronze coil
Brazil splits HS 7409.31 into 3 NCM codes. Pick the one that matches your product:
- 7409.31.11Plastic-coated bronze strip, sintered interlayer
- 7409.31.19Other plastic-coated bronze strip in coils
- 7409.31.90Bronze strip in coils, not plastic-coated
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about bronze coil
What is the HS code for Bronze coil?
The HS code for Bronze coil is 740931 (Copper; strip, of a thickness exceeding 0.15mm, of copper-tin base alloys (bronze), in coils). The HS code for bronze coil is 7409.31, specifically for copper-tin base alloys in coiled form with a thickness over 0.15 mm.
How do I classify Bronze coil for customs?
Bronze coil is classified under HS code 740931 — Copper; strip, of a thickness exceeding 0.15mm, of copper-tin base alloys (bronze), in coils. This is a 6-digit subheading level code.
When does a bronze coil become bronze foil?
A bronze product is classified as foil under HS code 7410.22 when its thickness is 0.15 mm or less, regardless of whether it is in a coil.
Which countries are the top exporters of bronze coil (HS 740931)?
In 2025, the top exporters of HS 740931 (the code used for bronze coil) in UN Comtrade data were Germany ($331M, 41% of world exports), Japan ($139M) and China ($124M). World exports came to about $804M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of bronze coil (HS 740931)?
In 2025, the top importers of HS 740931 (the code used for bronze coil) in UN Comtrade data were the United States ($125M, 16% of world imports), China ($102M) and India ($100M). World imports came to about $799M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Is the HS code for Bronze coil the same in all countries?
The base HS code 740931 for Bronze coil is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for bronze coil in Brazil?
Brazil splits HS 740931 into 3 NCM codes, so the right one for bronze coil depends on the product's details: 7409.31.11 (Plastic-coated bronze strip, sintered interlayer), 7409.31.19 (Other plastic-coated bronze strip in coils), 7409.31.90 (Bronze strip in coils, not plastic-coated).