Product classification
HS code for Copper couplings: 7412.10
Copper, tube or pipe fittings (e.g. couplings, elbows, sleeves) of refined copper.
Classification of copper couplings under HS 7412.10
The classification of copper couplings under HS code 7412.10 is determined by the General Rules of Interpretation (GRI) and the specific definitions provided in the Harmonized System's Legal Notes for Chapter 74. Heading 7412 is specifically reserved for tube or pipe fittings, which include couplings, elbows, and sleeves. To qualify for the 7412.10 subheading, the fitting must be manufactured from refined copper. Refined copper is defined in Note 1(a) to Chapter 74 as metal containing at least 99.85% by weight of copper, or metal containing at least 97.5% by weight of copper, provided that the content by weight of any other element does not exceed specific limits (such as 0.25% for silver or 0.5% for iron). These couplings are essential components in plumbing and industrial piping systems, used to join two lengths of pipe or tube. The classification remains consistent regardless of the method of manufacture, whether they are cast, forged, or machined from solid bar stock, provided they meet the material purity requirements. If the coupling is used for conveying fluids or gases and is made of refined copper, it must be classified here rather than under general machinery parts or other base metal categories. The distinction between refined copper and copper alloys is the most critical factor in this classification, as alloyed fittings (like brass) fall under 7412.20. Furthermore, the item must be a finished fitting; raw materials like tubes or bars are classified elsewhere.
- Covers
- Straight couplings of refined copper
- Reducing couplings for different pipe diameters
- Slip couplings for pipe repair
- Stop couplings with internal ridges
- Female and male threaded couplings of refined copper
- Also under 7412.10
- Mueller Industries Copper Fittings
- Nibco Copper Fittings
- Viega Copper Press Fittings
- Conex Bänninger Copper Fittings
Codes often confused with 7412.10
Common mistake. Copper couplings are frequently misclassified under HS code 7412.20, which is reserved for fittings made of copper alloys such as brass or bronze. Another common error is using HS code 7307, which applies to fittings made of iron or steel. Additionally, if the coupling is part of a specific machine and is imported as a spare part, some importers mistakenly use Chapter 84 codes, but General Note 2(a) to Section XV dictates that parts of general use remain in their respective headings.
Top exporters and importers of HS 741210 (the code used for copper couplings), 2025
In 2025, the largest exporter of HS 741210 (the code used for copper couplings) in UN Comtrade data was China, with 25% of world exports; the largest importer in UN Comtrade data was the United States, with 26% 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 741210, not only copper couplings.
Top exporters 2025 · share of world exports
- 1 China $325M 25% of world exports
- 2 Germany $232M 18% of world exports
- 3 Poland $169M 13% of world exports
World total: $1.3B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $336M 26% of world imports
- 2 Germany $126M 9.6% of world imports
- 3 United Kingdom $95M 7.3% of world imports
World total: $1.3B 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 code for copper couplings
Brazil classifies copper couplings under NCM 7412.10.00: HS 7412.10 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about copper couplings
What is the HS code for Copper couplings?
The HS code for Copper couplings is 741210 (Copper; tube or pipe fittings (e.g. couplings, elbows, sleeves) of refined copper). The HS code for couplings made of refined copper is 7412.10.
How do I classify Copper couplings for customs?
Copper couplings is classified under HS code 741210 — Copper; tube or pipe fittings (e.g. couplings, elbows, sleeves) of refined copper. This is a 6-digit subheading level code.
Does this code include brass couplings?
No, brass couplings are considered copper alloys and are classified under HS code 7412.20.
Which countries are the top exporters of copper couplings (HS 741210)?
In 2025, the top exporters of HS 741210 (the code used for copper couplings) in UN Comtrade data were China ($325M, 25% of world exports), Germany ($232M) and Poland ($169M). World exports came to about $1.3B, 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 copper couplings (HS 741210)?
In 2025, the top importers of HS 741210 (the code used for copper couplings) in UN Comtrade data were the United States ($336M, 26% of world imports), Germany ($126M) and the United Kingdom ($95M). World imports came to about $1.3B, 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 Copper couplings the same in all countries?
The base HS code 741210 for Copper couplings 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 copper couplings in Brazil?
In Brazil, copper couplings (HS 741210) is classified under NCM 7412.10.00.