Product classification
HS code for Seamless stainless steel tubes: 7304.49
Steel, stainless, (excluding cold-drawn or cold-rolled), tubes pipes and hollow profiles of circular cross-section.
Classification of seamless stainless steel tubes under HS 7304.49
HS code 7304.49 applies to seamless tubes, pipes, and hollow profiles of stainless steel that are not cold-drawn or cold-rolled. These are typically hot-finished products. The classification is determined first by the material (stainless steel, as defined by chromium content) and second by the manufacturing method (seamless). The exclusion of cold-finished products (which fall under 7304.41) means that 7304.49 covers tubes that have been hot-rolled, hot-drawn, or extruded and have not undergone subsequent cold-reduction processes to achieve tighter tolerances or smoother finishes. These tubes are widely used in industrial environments where corrosion resistance is paramount, such as in heat exchangers, chemical reactors, and food processing equipment. Under the Harmonized System, the distinction between hot-finished and cold-finished is a primary divider for steel products, as the additional processing for cold-finishing significantly alters the physical properties and value of the steel. Importers must ensure that the surface finish and dimensional tolerances described in the shipping documents align with hot-finished standards to justify the use of 7304.49. This code serves as the general category for stainless seamless tubes that do not meet the specific criteria for oil/gas line pipe or cold-finished precision tubing.
- Covers
- Hot-finished seamless stainless steel tubes
- Stainless steel hollow bars (hot-rolled)
- Industrial process piping (seamless stainless)
- Heat exchanger tubes (hot-finished)
- Corrosion-resistant structural stainless tubes
- Also under 7304.49
- Tenaris seamless stainless pipes
- Vallourec hot-finished stainless tubes
- Outokumpu seamless stainless hollows
- JFE Steel stainless industrial pipes
Codes often confused with 7304.49
Common mistake. The most frequent misclassification is 7304.41, which is for cold-drawn or cold-rolled stainless steel tubes. If a tube has been cold-finished, it must be moved to 7304.41. Additionally, welded stainless tubes are classified under 7306.40, and line pipes for oil/gas are classified under 7304.11.
Top exporters and importers of HS 730449 (the code used for seamless stainless steel tubes), 2025
In 2025, the largest exporter of HS 730449 (the code used for seamless stainless steel tubes) in UN Comtrade data was Sweden, with 15% of world exports; the largest importer in UN Comtrade data was the United States, with 11% 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 730449, not only seamless stainless steel tubes.
Top exporters 2025 · share of world exports
- 1 Sweden $180M 15% of world exports
- 2 Spain $164M 14% of world exports
- 3 France $148M 12% of world exports
World total: $1.2B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $152M 11% of world imports
- 2 Germany $118M 8.3% of world imports
- 3 Czechia $115M 8.1% of world imports
World total: $1.4B 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 code for seamless stainless steel tubes
Brazil classifies seamless stainless steel tubes under NCM 7304.49.00: HS 7304.49 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 seamless stainless steel tubes
What is the HS code for Seamless stainless steel tubes?
The HS code for Seamless stainless steel tubes is 730449 (Steel, stainless; (excluding cold-drawn or cold-rolled), tubes pipes and hollow profiles of circular cross-section).
How do I classify Seamless stainless steel tubes for customs?
Seamless stainless steel tubes is classified under HS code 730449 — Steel, stainless; (excluding cold-drawn or cold-rolled), tubes pipes and hollow profiles of circular cross-section. This is a 6-digit subheading level code.
What is the HS code for 7304.49?
The HS code 7304.49 is for seamless stainless steel tubes, pipes, and hollow profiles that are not cold-drawn or cold-rolled.
What is the difference between 7304.41 and 7304.49?
7304.41 is for cold-finished (cold-drawn or cold-rolled) tubes, while 7304.49 is for hot-finished tubes.
Which countries are the top exporters of seamless stainless steel tubes (HS 730449)?
In 2025, the top exporters of HS 730449 (the code used for seamless stainless steel tubes) in UN Comtrade data were Sweden ($180M, 15% of world exports), Spain ($164M) and France ($148M). World exports came to about $1.2B, 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 seamless stainless steel tubes (HS 730449)?
In 2025, the top importers of HS 730449 (the code used for seamless stainless steel tubes) in UN Comtrade data were the United States ($152M, 11% of world imports), Germany ($118M) and Czechia ($115M). World imports came to about $1.4B, 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 Seamless stainless steel tubes the same in all countries?
The base HS code 730449 for Seamless stainless steel tubes 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 seamless stainless steel tubes in Brazil?
In Brazil, seamless stainless steel tubes (HS 730449) is classified under NCM 7304.49.00.