Product classification

HS code for Welded steel pipe: 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.

Classification of welded steel pipe under HS 7306.30

Welded steel pipes made of iron or non-alloy steel with a circular cross-section are classified under HS code 7306.30. This classification is one of the most widely used in the steel industry. To qualify for this code, the pipe must meet three specific criteria: it must be made of iron or non-alloy steel (carbon steel), it must be produced using a welding process (such as Electric Resistance Welding or ERW), and it must have a circular cross-section. Heading 7306 covers tubes and pipes that are not seamless and have an external diameter not exceeding 406.4 mm (larger pipes are often in 7305). These pipes are essential for transporting fluids like water and gas, as well as for structural applications like scaffolding and fencing.

Covers
  • ERW (Electric Resistance Welded) carbon steel pipes
  • Galvanized welded steel pipes for plumbing
  • Black steel pipes for gas distribution
  • Welded steel scaffolding tubes
  • Circular hollow sections (CHS) for construction
Also under 7306.30
  • Tenaris welded pipes
  • ArcelorMittal structural tubes
  • Vallourec line pipes
  • JFE Steel pipes

Codes often confused with 7306.30

Common mistake. A common misclassification occurs with HS code 7304.31 or 7304.39, which are for seamless pipes of iron or steel. Seamless pipes do not have a weld seam and are usually more expensive. Another error is confusing 7306.30 with 7306.40, which is for stainless steel welded pipes. The distinction lies in the alloy content, specifically chromium. Additionally, if the pipe has an external diameter exceeding 406.4 mm and is longitudinally welded, it should be classified under heading 7305 (e.g., 7305.11). Finally, if the pipe is not circular, it must be moved to 7306.61 (square/rectangular) or 7306.69 (other shapes).

7306.90Iron or steel (excluding cast iron); tubes, pipes and hollow profiles (not seamless), n.e.c. in chapter 737305.39Iron or steel (excluding cast iron); tubes and pipes (other than line pipe or casing of a kind used for oil or gas pipelines), welded (not longitudinally welded), having circular cross-sections, external diameter exceeds 406.4mm, (not seamless)7305.90Iron or steel (excluding cast iron); tubes and pipes n.e.c. in heading no. 7305, having circular cross-sections, external diameter exceeds 406.4mm, (not seamless)7306.19Iron or steel (excluding cast iron); line pipe of a kind used for oil or gas pipelines (other than of stainless steel or seamless), n.e.c. in chapter 737305.31Iron or steel (excluding cast iron); tubes and pipes (other than line pipe or casing of a kind used for oil or gas pipelines), longitudinally welded, having circular cross-sections, external diameter exceeds 406.4mm, (not seamless)7304.31Iron or non-alloy steel (excluding cast iron); seamless, cold-drawn or cold-rolled, tubes, pipes and hollow profiles of circular cross-section7304.39Iron or non-alloy steel (excluding cast iron); seamless, (excluding cold-drawn or cold-rolled), tubes, pipes and hollow profiles of circular cross-section7306.40Steel, stainless; tubes, pipes and hollow profiles, welded, of circular cross-section, n.e.c. in chapter 7373.05Iron or steel (excluding cast iron); tubes and pipes (e.g. welded, riveted or similarly closed), having circular cross-sections, external diameter of which exceeds 406.4mm, not seamless7305.11Iron or steel (excluding cast iron); line pipe of a kind used for oil or gas pipelines (not seamless), longitudinally submerged arc welded, having circular cross-sections, external diameter exceeds 406.4mm7306.61Iron or steel (excluding cast iron); tubes, pipes and hollow profiles (not seamless), welded, of square or rectangular cross-section, n.e.c. in chapter 737306.69Iron or steel (excluding cast iron); tubes, pipes and hollow profiles (not seamless), n.e.c. in chapter 73, welded, of non-circular cross-section (not square or rectangular cross-section)

Top exporters and importers of HS 730630 (the code used for welded steel pipe), 2025

In 2025, the largest exporter of HS 730630 (the code used for welded steel pipe) 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.

Figures cover everything classified under HS 730630, not only welded steel pipe.

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 welded steel pipe

Brazil splits HS 7306.30 into 2 NCM codes. Pick the one that matches your product:

  • 7306.30.10Welded tube, OD 22.25, wall 2.64, length 448.2 mm
  • 7306.30.90Other welded round iron or non-alloy steel tubes

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 steel pipe

What is the HS code for Welded steel pipe?

The HS code for Welded steel pipe is 730630 (Iron or non-alloy steel (excluding cast iron); tubes and pipes (not seamless), welded, of circular cross-section, n.e.c. in chapter 73).

How do I classify Welded steel pipe for customs?

Welded steel pipe is classified under HS code 730630 — 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 is a 6-digit subheading level code.

What is the HS code for standard welded carbon steel pipe?

The HS code for welded, circular, non-alloy steel pipe is 7306.30.

Does 7306.30 include galvanized pipes?

Yes, as long as the pipe is welded, circular, and made of non-alloy steel, it remains under 7306.30 regardless of the surface coating.

Which countries are the top exporters of welded steel pipe (HS 730630)?

In 2025, the top exporters of HS 730630 (the code used for welded steel pipe) 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 welded steel pipe (HS 730630)?

In 2025, the top importers of HS 730630 (the code used for welded steel pipe) 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.

Is the HS code for Welded steel pipe the same in all countries?

The base HS code 730630 for Welded 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 steel pipe in Brazil?

Brazil splits HS 730630 into 2 NCM codes, so the right one for welded steel pipe depends on the product's details: 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).