Product classification
HS code for Welded alloy steel pipe: 7306.50
Steel, alloy, tubes, pipes and hollow profiles (other than stainless steel or seamless), welded, of circular cross-section, n.e.c. in chapter 73.
Classification of welded alloy steel pipe under HS 7306.50
Welded alloy steel pipe is classified under HS code 7306.50. This classification is situated within Chapter 73, which covers articles of iron or steel. Heading 7306 applies to other tubes, pipes, and hollow profiles (for example, open seam or welded, riveted or similarly closed), of iron or steel. The sub-heading 7306.50 specifically targets those products made of "other alloy steel" that are welded and have a circular cross-section. To qualify for this code, the steel must meet the definition of "alloy steel" provided in the Chapter 72 notes, which requires the presence of specific elements (such as manganese, silicon, nickel, chromium, etc.) in weight percentages exceeding defined thresholds. Furthermore, the pipe must be manufactured using a welding process rather than being seamless. This classification is essential for distinguishing between standard carbon steel pipes and those engineered with specific alloys for enhanced strength, corrosion resistance, or temperature stability.
- Covers
- Welded circular pipes made of alloy steel
- Electric resistance welded (ERW) alloy steel tubing
- Longitudinally welded alloy steel pipes
- Alloy steel hollow sections for structural use
- Welded mechanical tubing of alloy steel
- Also under 7306.50
- Sumitomo Metal Industries alloy pipes
- Nippon Steel alloy tubes
- Tata Steel specialized profiles
- Baosteel alloy tubing
Codes often confused with 7306.50
Common mistake. Welded alloy steel pipes are often misclassified under HS code 7304, which is strictly for seamless tubes and pipes. Another common error is using HS code 7306.30, which is reserved for welded pipes of non-alloy steel (carbon steel). It is also vital to distinguish these from stainless steel pipes, which fall under HS code 7306.40. While stainless steel is technically an alloy, the Harmonized System provides a specific sub-heading for it, leaving 7306.50 for "other" alloy steels. Finally, if the pipe is not circular in cross-section, it must be classified under 7306.61 or 7306.69 regardless of the alloy content.
Top exporters and importers of HS 730650 (the code used for welded alloy steel pipe), 2025
In 2025, the largest exporter of HS 730650 (the code used for welded alloy steel pipe) in UN Comtrade data was Germany, with 21% of world exports; the largest importer in UN Comtrade data was Mexico, with 12% 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 730650, not only welded alloy steel pipe.
Top exporters 2025 · share of world exports
- 1 Germany $125M 21% of world exports
- 2 China $85M 15% of world exports
- 3 United States $78M 13% of world exports
World total: $586M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Mexico $82M 12% of world imports
- 2 Saudi Arabia $50M 7.5% of world imports
- 3 United States $47M 7.2% of world imports
World total: $660M 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 welded alloy steel pipe
Brazil classifies welded alloy steel pipe under NCM 7306.50.00: HS 7306.50 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 welded alloy steel pipe
What is the HS code for Welded alloy steel pipe?
The HS code for Welded alloy steel pipe is 730650 (Steel, alloy; tubes, pipes and hollow profiles (other than stainless steel or seamless), welded, of circular cross-section, n.e.c. in chapter 73). The HS code for welded alloy steel pipe of circular cross-section is 7306.50.
How do I classify Welded alloy steel pipe for customs?
Welded alloy steel pipe is classified under HS code 730650 — Steel, alloy; tubes, pipes and hollow profiles (other than stainless steel or seamless), welded, of circular cross-section, n.e.c. in chapter 73. This is a 6-digit subheading level code.
Does 7306.50 include stainless steel pipes?
No, stainless steel welded pipes are classified under HS code 7306.40; 7306.50 is for other alloy steels excluding stainless.
Which countries are the top exporters of welded alloy steel pipe (HS 730650)?
In 2025, the top exporters of HS 730650 (the code used for welded alloy steel pipe) in UN Comtrade data were Germany ($125M, 21% of world exports), China ($85M) and the United States ($78M). World exports came to about $586M, 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 welded alloy steel pipe (HS 730650)?
In 2025, the top importers of HS 730650 (the code used for welded alloy steel pipe) in UN Comtrade data were Mexico ($82M, 12% of world imports), Saudi Arabia ($50M) and the United States ($47M). World imports came to about $660M, 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 Welded alloy steel pipe the same in all countries?
The base HS code 730650 for Welded alloy steel pipe 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 welded alloy steel pipe in Brazil?
In Brazil, welded alloy steel pipe (HS 730650) is classified under NCM 7306.50.00.