HS code · 6-digit subheading
HS Code 7306.61 – Iron or steel (excluding cast iron); tubes, pipes and hollow profiles (not seamless), welded, of square or rectangular cross-section, n.e.c. in chapter 73
HS code 7306.61 is the 6-digit subheading for iron or steel (excluding cast iron), tubes, pipes and hollow profiles (not seamless), welded, of square or rectangular cross-section, n.e.c. in chapter 73. It is used for square hollow sections (SHS), rectangular hollow sections (RHS), structural steel tubing, welded box beams and steel framework components.
What HS 7306.61 covers
This HS code encompasses welded tubes, pipes, and hollow profiles made from iron or steel (excluding cast iron) that feature a square or rectangular cross-section. These products are fundamental to the construction and manufacturing sectors, serving as structural elements in buildings, bridges, machinery frames, and various support structures. International trade in these goods is driven by global infrastructure development and industrial expansion. Major importers include rapidly urbanizing nations and countries undertaking significant construction projects, while exporters are typically large steel-producing economies with advanced fabrication capabilities. Key considerations for trade involve material strength, welding quality, dimensional accuracy, and adherence to specific national and international building codes and standards, ensuring structural integrity and safety in their diverse applications.
- Covers
- Square hollow sections (SHS)
- Rectangular hollow sections (RHS)
- Structural steel tubing
- Welded box beams
- Steel framework components
- Industrial pipe sections
- Steel columns
- Examples
- ArcelorMittal structural tubing
- Tata Steel RHS
- Nippon Steel SHS
- SSAB structural profiles
Codes often confused with 7306.61
Common mistake. This code can be confused with seamless tubes (7304) due to similar material, or with welded tubes of circular cross-section (730630, 730650) if the specific square or rectangular shape is overlooked.
Top exporters and importers of HS code 730661, 2025
In 2025, the largest exporter of HS code 730661 in UN Comtrade data was Italy, with 19% of world exports; the largest importer in UN Comtrade data was Germany, with 9.2% 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 Italy $1.4B 19% of world exports
- 2 China $1.3B 18% of world exports
- 3 Türkiye $544M 7.8% of world exports
World total: $7.0B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Germany $635M 9.2% of world imports
- 2 United States $555M 8.0% of world imports
- 3 France $397M 5.7% of world imports
World total: $6.9B 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 7306.61
Brazil does not split HS 7306.61: its NCM code is 7306.61.00.
All Brazil NCM codes in heading 73.06 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
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 HS 7306.61
What is HS code 730661?
HS code 730661 is a 6-digit subheading in the Harmonized System that covers: Iron or steel (excluding cast iron); tubes, pipes and hollow profiles (not seamless), welded, of square or rectangular cross-section, n.e.c. in chapter 73. This HS code encompasses welded tubes, pipes, and hollow profiles made from iron or steel (excluding cast iron) that feature a square or rectangular cross-section. These products are fundamental to the construction and manufacturing sectors, serving as structural elements in buildings, bridges, machinery frames, and various support structures. International trade in these goods is driven by global infrastructure development and industrial expansion. Major importers include rapidly urbanizing nations and countries undertaking significant construction projects, while exporters are typically large steel-producing economies with advanced fabrication capabilities. Key considerations for trade involve material strength, welding quality, dimensional accuracy, and adherence to specific national and international building codes and standards, ensuring structural integrity and safety in their diverse applications.
What products fall under HS code 730661?
Square hollow sections (SHS), rectangular hollow sections (RHS), structural steel tubing, welded box beams, steel framework components, industrial pipe sections, steel columns
What are common misclassifications for HS code 730661?
This code can be confused with seamless tubes (7304) due to similar material, or with welded tubes of circular cross-section (730630, 730650) if the specific square or rectangular shape is overlooked.
Which countries are the top exporters of goods under HS code 730661?
In 2025, the top exporters of HS code 730661 in UN Comtrade data were Italy ($1.4B, 19% of world exports), China ($1.3B) and Türkiye ($544M). World exports came to about $7.0B, 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 730661?
In 2025, the top importers of HS code 730661 in UN Comtrade data were Germany ($635M, 9.2% of world imports), the United States ($555M) and France ($397M). World imports came to about $6.9B, 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 730661 structured?
HS code 730661 is a 6-digit subheading under the Harmonized System. The first 2 digits (73) identify the chapter, digits 3-4 (06) identify the heading, and digits 5-6 (61) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 730661?
In Brazil, HS code 730661 is NCM 7306.61.00. The last two digits are 00 because Brazil does not split this HS code further.