HS code · 6-digit subheading

HS Code 7306.30 – Iron or non-alloy steel (excluding cast iron); tubes and pipes (not seamless), welded, of circular cross-section, n.e.c. in chapter 73

HS code 7306.30 is the 6-digit subheading for iron or non-alloy steel (excluding cast iron), tubes and pipes (not seamless), welded, of circular cross-section, n.e.c. in chapter 73. It is used for welded steel water pipes, structural steel tubing, HVAC ducting, scaffolding pipes and conduit pipes.

What HS 7306.30 covers

This HS code encompasses welded tubes and pipes made from iron or non-alloy steel, specifically those with a circular cross-section and not seamless, used across a vast array of industrial applications. These goods are fundamental to infrastructure development, construction, and various manufacturing sectors. Major importers include construction companies, oil and gas firms, and general manufacturing industries requiring structural components or fluid conveyance. Exporters are typically large steel-producing nations with advanced fabrication capabilities. Key aspects in international trade involve adherence to specific material standards (e.g., ASTM, EN), the quality of the weld, pressure ratings, and surface finishes. The global demand for these pipes is closely tied to economic growth and investment in public works and industrial expansion.

Covers
  • Welded steel water pipes
  • Structural steel tubing
  • HVAC ducting
  • Scaffolding pipes
  • Conduit pipes
  • Exhaust pipes
  • Fence posts
Examples
  • Tenaris welded pipes
  • ArcelorMittal structural tubes
  • Vallourec line pipes
  • JFE Steel pipes

Codes often confused with 7306.30

Common mistake. This code can be confused with 730611 (line pipe for oil or gas pipelines) if the specific application is for energy transport, or 730690 (other tubes and pipes) if the cross-section is not strictly circular or the material is ambiguous.

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 730630, 2025

In 2025, the largest exporter of HS code 730630 in UN Comtrade data was China, with 17% of world exports; the largest importer in UN Comtrade data was the United States, with 13% 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 China $1.3B
  2. 2 Italy $1.2B
  3. 3 Türkiye $561M

World total: $7.8B Reported figures on UN Comtrade ↗

Top importers 2025 · share of world imports

  1. 1 United States $969M
  2. 2 Germany $646M
  3. 3 Canada $401M

World total: $7.4B 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 codes for 7306.30 2

Brazil splits HS 7306.30 into 2 NCM codes, Mercosur's 8-digit tariff lines.

  1. 7306.30.10 Welded tube, OD 22.25, wall 2.64, length 448.2 mmDe diâmetro exterior igual a 22,25 mm, espessura igual a 2,64 mm e comprimento igual a 448,2 mm
  2. 7306.30.90 Other welded round iron or non-alloy steel tubesOutros

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 7306.30

What is HS code 730630?

HS code 730630 is a 6-digit subheading in the Harmonized System that covers: Iron or non-alloy steel (excluding cast iron); tubes and pipes (not seamless), welded, of circular cross-section, n.e.c. in chapter 73. This HS code encompasses welded tubes and pipes made from iron or non-alloy steel, specifically those with a circular cross-section and not seamless, used across a vast array of industrial applications. These goods are fundamental to infrastructure development, construction, and various manufacturing sectors. Major importers include construction companies, oil and gas firms, and general manufacturing industries requiring structural components or fluid conveyance. Exporters are typically large steel-producing nations with advanced fabrication capabilities. Key aspects in international trade involve adherence to specific material standards (e.g., ASTM, EN), the quality of the weld, pressure ratings, and surface finishes. The global demand for these pipes is closely tied to economic growth and investment in public works and industrial expansion.

What products fall under HS code 730630?

Welded steel water pipes, Structural steel tubing, HVAC ducting, Scaffolding pipes, Conduit pipes, Exhaust pipes, Fence posts

What are common misclassifications for HS code 730630?

This code can be confused with 730611 (line pipe for oil or gas pipelines) if the specific application is for energy transport, or 730690 (other tubes and pipes) if the cross-section is not strictly circular or the material is ambiguous.

Which countries are the top exporters of goods under HS code 730630?

In 2025, the top exporters of HS code 730630 in UN Comtrade data were China ($1.3B, 17% of world exports), Italy ($1.2B) and Türkiye ($561M). World exports came to about $7.8B, 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 730630?

In 2025, the top importers of HS code 730630 in UN Comtrade data were the United States ($969M, 13% of world imports), Germany ($646M) and Canada ($401M). World imports came to about $7.4B, 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.

How is HS code 730630 structured?

HS code 730630 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 (30) specify the subheading. This code is standardized globally by the World Customs Organization.

What is the Brazil NCM code for HS code 730630?

Brazil splits HS code 730630 into 2 NCM codes: 7306.30.10 (Welded tube, OD 22.25, wall 2.64, length 448.2 mm), 7306.30.90 (Other welded round iron or non-alloy steel tubes). The first 6 digits of each match the HS code.