Product classification
HS code for Brazing rods: 8311.30
Rods and wire, coated rods and cored wire, of base metal, for soldering, brazing or welding by flame.
Classification of brazing rods under HS 8311.30
Brazing rods that are coated or cored with flux material are classified under HS code 8311.30. This classification is part of Chapter 83, which covers miscellaneous articles of base metal. Heading 8311 specifically addresses wire, rods, tubes, plates, electrodes, and similar products of base metal or of metal carbides, which are coated or cored with flux material for use in soldering, brazing, or welding. The presence of the flux—a chemical cleaning agent that facilitates the flow of the filler metal—is the defining characteristic for this code. These rods are used in flame brazing processes where the rod is melted by a torch to join two metal surfaces. The base metal of the rod is typically a copper alloy, but the classification under 8311.30 is determined by the fact that it is a prepared consumable for brazing rather than just a simple piece of metal. This ensures that specialized industrial consumables are grouped together regardless of the specific alloy used in the core.
- Covers
- Flux-coated silver-copper brazing rods
- Flux-cored aluminum brazing rods
- Low-temperature brazing rods with flux coating
- Base metal rods for flame brazing with chemical cores
- Coated rods for brazing cast iron or brass
- Also under 8311.30
- Harris Stay-Silv brazing alloys
- Lucas-Milhaupt brazing alloys
- Kester Solder
- Alpha Assembly Solutions solder
- Worthington Industries brazing rods
Codes often confused with 8311.30
Common mistake. The most common misclassification for brazing rods is under the base metal chapters, such as 7407.21 for brass rods or 7604.29 for aluminum rods. These chapters only apply if the rods are solid and lack any flux coating or core. Another error is confusing them with coated electrodes for electric arc welding, which are classified under 8311.10. The distinction is that 8311.30 is specifically for flame brazing or soldering applications.
Top exporters and importers of HS 831130 (the code used for brazing rods), 2025
In 2025, the largest exporter of HS 831130 (the code used for brazing rods) in UN Comtrade data was China, with 38% of world exports; the largest importer in UN Comtrade data was the United States, with 18% 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 831130, not only brazing rods.
Top exporters 2025 · share of world exports
- 1 China $234M 38% of world exports
- 2 Thailand $88M 14% of world exports
- 3 United States $42M 6.8% of world exports
World total: $618M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $100M 18% of world imports
- 2 Vietnam* ~$55M 9.9% of world imports · partner records ↗
- 3 China $40M 7.2% of world imports
World total: $554M 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 marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. 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 code for brazing rods
Brazil classifies brazing rods under NCM 8311.30.00: HS 8311.30 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about brazing rods
What is the HS code for Brazing rods?
The HS code for Brazing rods is 831130 (Rods and wire; coated rods and cored wire, of base metal, for soldering, brazing or welding by flame). Brazing rods that are coated or cored with flux are classified under HS code 8311.30.
How do I classify Brazing rods for customs?
Brazing rods is classified under HS code 831130 — Rods and wire; coated rods and cored wire, of base metal, for soldering, brazing or welding by flame. This is a 6-digit subheading level code.
What if the brazing rod has no flux coating?
If the rod is a solid alloy without flux, it must be classified according to its constituent metal in Chapters 72 to 81 (e.g., Chapter 74 for copper alloys).
Which countries are the top exporters of brazing rods (HS 831130)?
In 2025, the top exporters of HS 831130 (the code used for brazing rods) in UN Comtrade data were China ($234M, 38% of world exports), Thailand ($88M) and the United States ($42M). World exports came to about $618M, 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 brazing rods (HS 831130)?
In 2025, the top importers of HS 831130 (the code used for brazing rods) in UN Comtrade data were the United States ($100M, 18% of world imports), Vietnam (about $55M) and China ($40M). World imports came to about $554M, 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 Brazing rods the same in all countries?
The base HS code 831130 for Brazing rods 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 brazing rods in Brazil?
In Brazil, brazing rods (HS 831130) is classified under NCM 8311.30.00.