HS code · 6-digit subheading
HS Code 7409.31 – Copper; strip, of a thickness exceeding 0.15mm, of copper-tin base alloys (bronze), in coils
HS code 7409.31 is the 6-digit subheading for copper, strip, of a thickness exceeding 0.15mm, of copper-tin base alloys (bronze), in coils. It is used for phosphor bronze strip, tin bronze strip, C51000 phosphor bronze coil, C52100 phosphor bronze coil and bearing bronze strip.
What HS 7409.31 covers
This HS code covers bronze strip (copper-tin base alloys) with a thickness greater than 0.15mm, supplied in coiled form. Bronze strips are highly valued in international trade for their superior strength, wear resistance, fatigue resistance, and good corrosion properties, making them ideal for demanding mechanical and electrical applications. They are extensively used in the production of springs, connectors, bearings, bushings, and electrical contacts, particularly in automotive, electronics, and marine industries. Industrialized nations with advanced manufacturing sectors, such as Germany, Japan, and the United States, are significant importers, requiring these specialized materials for high-performance components. Exporters often include countries with strong metallurgical industries and advanced rolling capabilities, like China, South Korea, and Germany. Key trade considerations include the specific bronze alloy (e.g., phosphor bronze, tin bronze), temper, dimensions, and surface quality, all critical for precision manufacturing.
- Covers
- Phosphor bronze strip
- Tin bronze strip
- C51000 phosphor bronze coil
- C52100 phosphor bronze coil
- Bearing bronze strip
- Spring bronze strip
- Electrical contact bronze strip
- Examples
- Wieland Phosphor Bronze Strip
- KME Bronze Coil
- Aurubis Bronze Strip
- Luvata Phosphor Bronze Coil
Codes often confused with 7409.31
Common mistake. This code can be confused with 740939 if the bronze is in flat sheets rather than coils, or with 740921 if the material is brass instead of bronze. The key is the specific copper-tin alloy and the coiled form.
Top exporters and importers of HS code 740931, 2025
In 2025, the largest exporter of HS code 740931 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.
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 7409.31 3
Brazil splits HS 7409.31 into 3 NCM codes, Mercosur's 8-digit tariff lines.
- 7409.31.1 Coated with plasticsRevestidas de plástico Group
- 7409.31.11 Plastic-coated bronze strip, sintered interlayerCom uma camada intermediária de liga de cobre-estanho ou cobre-estanho-chumbo, aplicada por sinterização
- 7409.31.19 Other plastic-coated bronze strip in coilsOutras
- 7409.31.90 Bronze strip in coils, not plastic-coatedOutras
All Brazil NCM codes in heading 74.09 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 7409.31
What is HS code 740931?
HS code 740931 is a 6-digit subheading in the Harmonized System that covers: Copper; strip, of a thickness exceeding 0.15mm, of copper-tin base alloys (bronze), in coils. This HS code covers bronze strip (copper-tin base alloys) with a thickness greater than 0.15mm, supplied in coiled form. Bronze strips are highly valued in international trade for their superior strength, wear resistance, fatigue resistance, and good corrosion properties, making them ideal for demanding mechanical and electrical applications. They are extensively used in the production of springs, connectors, bearings, bushings, and electrical contacts, particularly in automotive, electronics, and marine industries. Industrialized nations with advanced manufacturing sectors, such as Germany, Japan, and the United States, are significant importers, requiring these specialized materials for high-performance components. Exporters often include countries with strong metallurgical industries and advanced rolling capabilities, like China, South Korea, and Germany. Key trade considerations include the specific bronze alloy (e.g., phosphor bronze, tin bronze), temper, dimensions, and surface quality, all critical for precision manufacturing.
What products fall under HS code 740931?
Phosphor bronze strip, Tin bronze strip, C51000 phosphor bronze coil, C52100 phosphor bronze coil, Bearing bronze strip, Spring bronze strip, Electrical contact bronze strip
What are common misclassifications for HS code 740931?
This code can be confused with 740939 if the bronze is in flat sheets rather than coils, or with 740921 if the material is brass instead of bronze. The key is the specific copper-tin alloy and the coiled form.
Which countries are the top exporters of goods under HS code 740931?
In 2025, the top exporters of HS code 740931 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 goods under HS code 740931?
In 2025, the top importers of HS code 740931 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.
How is HS code 740931 structured?
HS code 740931 is a 6-digit subheading under the Harmonized System. The first 2 digits (74) identify the chapter, digits 3-4 (09) identify the heading, and digits 5-6 (31) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 740931?
Brazil splits HS code 740931 into 3 NCM codes: 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). The first 6 digits of each match the HS code.