HS code · 6-digit subheading
HS Code 7304.90 – Iron or steel (excluding cast iron); seamless, tubes, pipes and hollow profiles, seamless, n.e.c. in heading no. 7304
HS code 7304.90 is the 6-digit subheading for iron or steel (excluding cast iron), seamless, tubes, pipes and hollow profiles, seamless, n.e.c. in heading no. 7304. It is used for seamless precision tubes, custom-shaped seamless profiles, specialized seamless conduits, high-pressure seamless tubing and seamless mechanical tubing.
What HS 7304.90 covers
This HS code serves as a residual category for seamless tubes, pipes, and hollow profiles of iron or non-cast iron steel, not specifically covered by other subheadings within 7304. This "not elsewhere specified" classification captures a diverse range of seamless products that might have unique shapes, specialized treatments, or applications that don't fit the more specific categories based on material (non-alloy, stainless, alloy), processing (cold-drawn/rolled), or specific use (e.g., oil/gas pipelines). International trade in these goods is often driven by niche industrial demands, custom engineering projects, and specialized manufacturing requirements. Importers and exporters typically include countries with advanced industrial capabilities and diverse manufacturing sectors, such as Germany, the United States, Japan, and China, which produce or consume a wide array of specialized steel products. The trade reflects the broad utility of seamless steel tubing beyond the most common applications.
- Covers
- Seamless precision tubes
- Custom-shaped seamless profiles
- Specialized seamless conduits
- High-pressure seamless tubing
- Seamless mechanical tubing
- Seamless structural components
- Hydraulic seamless pipes
- Examples
- Parker Hannifin seamless hydraulic tubing
- Sandvik specialized seamless profiles
- Nippon Steel seamless mechanical tubes
- Custom-engineered seamless steel components
Codes often confused with 7304.90
Common mistake. This code is a "basket" category, often confused with more specific 7304 subheadings (e.g., 730439 for non-alloy, not cold-worked) if the specific characteristics are overlooked. Careful review of material, processing, and application is crucial to avoid misclassification into this general category.
Top exporters and importers of HS code 730490, 2025
In 2025, the largest exporter of HS code 730490 in UN Comtrade data was France, with 24% of world exports; the largest importer in UN Comtrade data was Singapore, with 7.2% 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 France $163M 24% of world exports
- 2 China $73M 11% of world exports
- 3 Singapore $52M 7.7% of world exports
World total: $675M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Singapore $61M 7.2% of world imports
- 2 Saudi Arabia $60M 7.1% of world imports
- 3 France $55M 6.5% of world imports
World total: $843M 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 7304.90 3
Brazil splits HS 7304.90 into 3 NCM codes, Mercosur's 8-digit tariff lines.
- 7304.90.1 Of an external diameter of 229 mm or lessDe diâmetro exterior inferior ou igual a 229 mm Group
- 7304.90.11 Other seamless stainless tubes/profiles, to 229 mmDe aço inoxidável
- 7304.90.19 Other seamless tubes/profiles, to 229 mmOutros
- 7304.90.90 Other seamless tubes/profiles, over 229 mmOutros
All Brazil NCM codes in heading 73.04 →
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 7304.90
What is HS code 730490?
HS code 730490 is a 6-digit subheading in the Harmonized System that covers: Iron or steel (excluding cast iron); seamless, tubes, pipes and hollow profiles, seamless, n.e.c. in heading no. 7304. This HS code serves as a residual category for seamless tubes, pipes, and hollow profiles of iron or non-cast iron steel, not specifically covered by other subheadings within 7304. This "not elsewhere specified" classification captures a diverse range of seamless products that might have unique shapes, specialized treatments, or applications that don't fit the more specific categories based on material (non-alloy, stainless, alloy), processing (cold-drawn/rolled), or specific use (e.g., oil/gas pipelines). International trade in these goods is often driven by niche industrial demands, custom engineering projects, and specialized manufacturing requirements. Importers and exporters typically include countries with advanced industrial capabilities and diverse manufacturing sectors, such as Germany, the United States, Japan, and China, which produce or consume a wide array of specialized steel products. The trade reflects the broad utility of seamless steel tubing beyond the most common applications.
What products fall under HS code 730490?
Seamless precision tubes, Custom-shaped seamless profiles, Specialized seamless conduits, High-pressure seamless tubing, Seamless mechanical tubing, Seamless structural components, Hydraulic seamless pipes
What are common misclassifications for HS code 730490?
This code is a "basket" category, often confused with more specific 7304 subheadings (e.g., 730439 for non-alloy, not cold-worked) if the specific characteristics are overlooked. Careful review of material, processing, and application is crucial to avoid misclassification into this general category.
Which countries are the top exporters of goods under HS code 730490?
In 2025, the top exporters of HS code 730490 in UN Comtrade data were France ($163M, 24% of world exports), China ($73M) and Singapore ($52M). World exports came to about $675M, 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 730490?
In 2025, the top importers of HS code 730490 in UN Comtrade data were Singapore ($61M, 7.2% of world imports), Saudi Arabia ($60M) and France ($55M). World imports came to about $843M, 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 730490 structured?
HS code 730490 is a 6-digit subheading under the Harmonized System. The first 2 digits (73) identify the chapter, digits 3-4 (04) identify the heading, and digits 5-6 (90) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 730490?
Brazil splits HS code 730490 into 3 NCM codes: 7304.90.11 (Other seamless stainless tubes/profiles, to 229 mm), 7304.90.19 (Other seamless tubes/profiles, to 229 mm), 7304.90.90 (Other seamless tubes/profiles, over 229 mm). The first 6 digits of each match the HS code.