HS code · 6-digit subheading
HS Code 8311.30 – Rods and wire; coated rods and cored wire, of base metal, for soldering, brazing or welding by flame
HS code 8311.30 is the 6-digit subheading for rods and wire, coated rods and cored wire, of base metal, for soldering, brazing or welding by flame. It is used for silver brazing rods, copper-phosphorus brazing rods, flux-coated brazing rods, lead-free soldering wire (cored) and tin-lead soldering wire (cored).
What HS 8311.30 covers
This HS code covers coated rods and cored wire of base metal specifically designed for soldering, brazing, or welding by flame. This category is distinct from electric arc welding consumables, focusing on processes that utilize a flame for heating and melting. These products are crucial in industries such as HVAC (heating, ventilation, and air conditioning), plumbing, refrigeration, automotive repair, and jewelry manufacturing, where precise, localized heat application is required. Importers include specialized distributors for these trades, repair shops, and manufacturers of components requiring flame-based joining. Exporters are often manufacturers specializing in brazing alloys, soldering materials, and specific flame welding rods. The trade is driven by demand for reliable, leak-proof joints in various metal assemblies. Key considerations include the specific alloy composition (e.g., silver brazing alloys, copper-phosphorus alloys) and the presence of flux coatings, which aid in cleaning and promoting wetting during the joining process.
- Covers
- Silver brazing rods
- Copper-phosphorus brazing rods
- Flux-coated brazing rods
- Lead-free soldering wire (cored)
- Tin-lead soldering wire (cored)
- Aluminum brazing rods
- Bronze welding rods
- Examples
- 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. This code is specific to flame-based joining consumables, differentiating it from electric arc welding electrodes (831110) or cored wire (831120), and general metal rods/wires (e.g., 7217).
Top exporters and importers of HS code 831130, 2025
In 2025, the largest exporter of HS code 831130 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.
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 8311.30
Brazil does not split HS 8311.30: its NCM code is 8311.30.00.
All Brazil NCM codes in heading 83.11 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 8311.30
What is HS code 831130?
HS code 831130 is a 6-digit subheading in the Harmonized System that covers: Rods and wire; coated rods and cored wire, of base metal, for soldering, brazing or welding by flame. This HS code covers coated rods and cored wire of base metal specifically designed for soldering, brazing, or welding by flame. This category is distinct from electric arc welding consumables, focusing on processes that utilize a flame for heating and melting. These products are crucial in industries such as HVAC (heating, ventilation, and air conditioning), plumbing, refrigeration, automotive repair, and jewelry manufacturing, where precise, localized heat application is required. Importers include specialized distributors for these trades, repair shops, and manufacturers of components requiring flame-based joining. Exporters are often manufacturers specializing in brazing alloys, soldering materials, and specific flame welding rods. The trade is driven by demand for reliable, leak-proof joints in various metal assemblies. Key considerations include the specific alloy composition (e.g., silver brazing alloys, copper-phosphorus alloys) and the presence of flux coatings, which aid in cleaning and promoting wetting during the joining process.
What products fall under HS code 831130?
Silver brazing rods, copper-phosphorus brazing rods, flux-coated brazing rods, lead-free soldering wire (cored), tin-lead soldering wire (cored), aluminum brazing rods, bronze welding rods
What are common misclassifications for HS code 831130?
This code is specific to flame-based joining consumables, differentiating it from electric arc welding electrodes (831110) or cored wire (831120), and general metal rods/wires (e.g., 7217).
Which countries are the top exporters of goods under HS code 831130?
In 2025, the top exporters of HS code 831130 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 goods under HS code 831130?
In 2025, the top importers of HS code 831130 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.
How is HS code 831130 structured?
HS code 831130 is a 6-digit subheading under the Harmonized System. The first 2 digits (83) identify the chapter, digits 3-4 (11) identify the heading, and digits 5-6 (30) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 831130?
In Brazil, HS code 831130 is NCM 8311.30.00. The last two digits are 00 because Brazil does not split this HS code further.