HS code · 6-digit subheading

HS Code 7306.40 – Steel, stainless; tubes, pipes and hollow profiles, welded, of circular cross-section, n.e.c. in chapter 73

HS code 7306.40 is the 6-digit subheading for steel, stainless, tubes, pipes and hollow profiles, welded, of circular cross-section, n.e.c. in chapter 73. It is used for stainless steel sanitary tubing, chemical process piping, marine exhaust pipes, architectural handrails and brewery piping.

What HS 7306.40 covers

This category covers welded tubes, pipes, and hollow profiles made from stainless steel, specifically those with a circular cross-section. These products are highly valued in international trade for their corrosion resistance, hygienic properties, and aesthetic appeal, making them indispensable in specialized industries. Importers include manufacturers in the food and beverage, chemical, pharmaceutical, marine, and architectural sectors, where material purity and durability are paramount. Exporters are typically countries with advanced stainless steel production and fabrication technologies. Key considerations for trade include the specific grade of stainless steel (e.g., 304, 316), surface finish requirements, pressure ratings, and compliance with industry-specific certifications, ensuring suitability for critical applications.

Covers
  • Stainless steel sanitary tubing
  • Chemical process piping
  • Marine exhaust pipes
  • Architectural handrails
  • Brewery piping
  • Dairy processing lines
  • Heat exchanger tubes
Examples
  • Outokumpu stainless tubes
  • Sandvik stainless pipes
  • ThyssenKrupp stainless profiles
  • POSCO stainless tubing

Codes often confused with 7306.40

Common mistake. Often confused with 730611 (line pipe for oil/gas) if made of stainless steel for specific applications, or 730690 (other tubes) if not circular, but the 'stainless' and 'circular' aspects are key here.

7306.11Steel; stainless; line pipe of a kind used for oil or gas pipelines n.e.c. in chapter 73, welded, (not seamless)7306.90Iron or steel (excluding cast iron); tubes, pipes and hollow profiles (not seamless), n.e.c. in chapter 73

Top exporters and importers of HS code 730640, 2025

In 2025, the largest exporter of HS code 730640 in UN Comtrade data was Italy, with 26% of world exports; the largest importer in UN Comtrade data was the United States, with 12% 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. 1 Italy $1.1B
  2. 2 China $454M
  3. 3 Germany $440M

World total: $4.4B Reported figures on UN Comtrade ↗

Top importers 2025 · share of world imports

  1. 1 United States $514M
  2. 2 Germany $445M
  3. 3 Poland $232M

World total: $4.3B 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 7306.40

Brazil does not split HS 7306.40: its NCM code is 7306.40.00.

  1. 7306.40.00 Other welded round stainless steel tubesOutros, soldados, de seção circular, de aço inoxidável

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 7306.40

What is HS code 730640?

HS code 730640 is a 6-digit subheading in the Harmonized System that covers: Steel, stainless; tubes, pipes and hollow profiles, welded, of circular cross-section, n.e.c. in chapter 73. This category covers welded tubes, pipes, and hollow profiles made from stainless steel, specifically those with a circular cross-section. These products are highly valued in international trade for their corrosion resistance, hygienic properties, and aesthetic appeal, making them indispensable in specialized industries. Importers include manufacturers in the food and beverage, chemical, pharmaceutical, marine, and architectural sectors, where material purity and durability are paramount. Exporters are typically countries with advanced stainless steel production and fabrication technologies. Key considerations for trade include the specific grade of stainless steel (e.g., 304, 316), surface finish requirements, pressure ratings, and compliance with industry-specific certifications, ensuring suitability for critical applications.

What products fall under HS code 730640?

Stainless steel sanitary tubing, Chemical process piping, Marine exhaust pipes, Architectural handrails, Brewery piping, Dairy processing lines, Heat exchanger tubes

What are common misclassifications for HS code 730640?

Often confused with 730611 (line pipe for oil/gas) if made of stainless steel for specific applications, or 730690 (other tubes) if not circular, but the 'stainless' and 'circular' aspects are key here.

Which countries are the top exporters of goods under HS code 730640?

In 2025, the top exporters of HS code 730640 in UN Comtrade data were Italy ($1.1B, 26% of world exports), China ($454M) and Germany ($440M). World exports came to about $4.4B, 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 730640?

In 2025, the top importers of HS code 730640 in UN Comtrade data were the United States ($514M, 12% of world imports), Germany ($445M) and Poland ($232M). World imports came to about $4.3B, 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.

How is HS code 730640 structured?

HS code 730640 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 (40) specify the subheading. This code is standardized globally by the World Customs Organization.

What is the Brazil NCM code for HS code 730640?

In Brazil, HS code 730640 is NCM 7306.40.00. The last two digits are 00 because Brazil does not split this HS code further.