Product classification
HS code for Carbon steel elbows: 7307.92
Iron or steel, tube or pipe fittings, threaded elbows, bends and sleeves, other than stainless steel.
Classification of carbon steel elbows under HS 7307.92
Carbon steel elbows are classified under HS code 7307.92. This classification is found within Chapter 73, which covers articles of iron or steel. Heading 7307 is dedicated to tube or pipe fittings, such as couplings, elbows, and sleeves. The subheading 7307.92 specifically identifies threaded elbows, bends, and sleeves made of steel other than stainless steel. The classification is determined by three main factors: the material (carbon steel), the shape (elbow or bend), and the connection method (threaded). Carbon steel is an alloy of iron and carbon, and for customs purposes, it is distinguished from stainless steel by its lower chromium content. Threaded fittings are designed to be screwed onto the pipe, providing a secure and leak-proof connection without the need for welding. These components are ubiquitous in low-pressure fluid transport systems, including water, gas, and oil pipelines.
- Covers
- Threaded 90-degree carbon steel elbows
- Threaded 45-degree carbon steel bends
- Threaded carbon steel sleeves
- Black iron threaded elbows
- Galvanized carbon steel threaded bends
- Also under 7307.92
- Anvil International threaded fittings
- Mueller Co. threaded fittings
- Victaulic threaded fittings
- Parker Hannifin threaded fittings
Codes often confused with 7307.92
Common mistake. The most frequent misclassification is with HS code 7307.22, which is for threaded elbows and bends made of stainless steel. It is critical to verify the metallurgical composition, as stainless steel fittings often carry different duty rates. Another common error is using 7307.93, which is for butt-welding fittings. While the shape may be identical (an elbow), the lack of threads and the presence of a beveled edge for welding moves the product to 7307.93. Additionally, if the elbow is made of cast iron rather than forged or machined carbon steel, it should be classified under 7307.11 or 7307.19. Proper identification of the material and the end-connection type is essential for correct classification.
Top exporters and importers of HS 730792 (the code used for carbon steel elbows), 2025
In 2025, the largest exporter of HS 730792 (the code used for carbon steel elbows) in UN Comtrade data was China, with 15% of world exports; the largest importer in UN Comtrade data was the United States, with 29% 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 730792, not only carbon steel elbows.
Top exporters 2025 · share of world exports
- 1 China $235M 15% of world exports
- 2 United States $198M 13% of world exports
- 3 Italy $154M 10% of world exports
World total: $1.5B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $475M 29% of world imports
- 2 Canada $134M 8.1% of world imports
- 3 Mexico $110M 6.7% of world imports
World total: $1.7B 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 carbon steel elbows
Brazil classifies carbon steel elbows under NCM 7307.92.00: HS 7307.92 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
EU Regulatory Requirements
This product falls under the Carbon Border Adjustment Mechanism (CBAM). Importers to the EU must declare embedded carbon emissions and purchase CBAM certificates.
Questions about carbon steel elbows
What is the HS code for Carbon steel elbows?
The HS code for Carbon steel elbows is 730792 (Iron or steel; tube or pipe fittings, threaded elbows, bends and sleeves, other than stainless steel). The HS code for threaded carbon steel elbows is 7307.92. If they are butt-welding, the code is 7307.93.
How do I classify Carbon steel elbows for customs?
Carbon steel elbows is classified under HS code 730792 — Iron or steel; tube or pipe fittings, threaded elbows, bends and sleeves, other than stainless steel. This is a 6-digit subheading level code.
How do I distinguish between 7307.92 and 7307.22?
The distinction is based on the material. 7307.92 is for carbon steel or other non-stainless steels, while 7307.22 is specifically for stainless steel fittings.
Which countries are the top exporters of carbon steel elbows (HS 730792)?
In 2025, the top exporters of HS 730792 (the code used for carbon steel elbows) in UN Comtrade data were China ($235M, 15% of world exports), the United States ($198M) and Italy ($154M). World exports came to about $1.5B, 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 carbon steel elbows (HS 730792)?
In 2025, the top importers of HS 730792 (the code used for carbon steel elbows) in UN Comtrade data were the United States ($475M, 29% of world imports), Canada ($134M) and Mexico ($110M). World imports came to about $1.7B, 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 Carbon steel elbows the same in all countries?
The base HS code 730792 for Carbon steel elbows 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 carbon steel elbows in Brazil?
In Brazil, carbon steel elbows (HS 730792) is classified under NCM 7307.92.00.