HS code · 6-digit subheading
HS Code 7304.59 – Steel, alloy (not stainless steel); (excluding cold-drawn or cold-rolled), tubes, pipes and hollow profiles of circular cross-section
HS code 7304.59 is the 6-digit subheading for steel, alloy (not stainless steel), (excluding cold-drawn or cold-rolled), tubes, pipes and hollow profiles of circular cross-section. It is used for hot-finished alloy steel pipes, seamless alloy steel tubes (not cold-worked), high-temperature alloy hollow profiles, structural alloy steel tubing and boiler alloy pipes.
What HS 7304.59 covers
This HS code covers seamless tubes, pipes, and hollow profiles of circular cross-section made from alloy steel (excluding stainless steel), which have not been cold-drawn or cold-rolled. These products, typically hot-finished, are traded globally for applications requiring the specific properties of alloy steel—such as improved strength, toughness, or heat resistance—but without the need for the precise dimensions or surface finish provided by cold-working. They are widely used in heavy industries like power generation, oil and gas, construction, and general engineering, where robust and durable components are essential. Key importers and exporters include countries with significant industrial bases and infrastructure development, such as China, the United States, Germany, and Russia. The trade is driven by large-scale industrial projects, energy sector demands, and the need for materials that can withstand challenging operational conditions, offering a balance between performance and cost for less precision-critical applications.
- Covers
- Hot-finished alloy steel pipes
- Seamless alloy steel tubes (not cold-worked)
- High-temperature alloy hollow profiles
- Structural alloy steel tubing
- Boiler alloy pipes
- Heat exchanger alloy tubes
- Petrochemical alloy pipes
- Examples
- Tenaris seamless alloy pipes
- Vallourec hot-finished alloy tubes
- ArcelorMittal alloy structural sections
- JFE Steel alloy industrial pipes
Codes often confused with 7304.59
Common mistake. This code is distinguished from 730451 (cold-drawn/rolled alloy steel) by the absence of cold-working, and from 730439 (non-alloy steel, not cold-drawn/rolled) by the presence of alloying elements.
Top exporters and importers of HS code 730459, 2025
In 2025, the largest exporter of HS code 730459 in UN Comtrade data was China, with 30% of world exports; the largest importer in UN Comtrade data was India, with 19% 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 China $473M 30% of world exports
- 2 Germany $161M 10% of world exports
- 3 Italy $160M 10% of world exports
World total: $1.6B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 India $394M 19% of world imports
- 2 United States $213M 10% of world imports
- 3 Saudi Arabia $153M 7.4% of world imports
World total: $2.1B 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 7304.59 2
Brazil splits HS 7304.59 into 2 NCM codes, Mercosur's 8-digit tariff lines.
- 7304.59.10 Hot-finished alloy steel tubes, OD to 229 mmTubos de diâmetro exterior inferior ou igual a 229 mm
- 7304.59.90 Other hot-finished seamless alloy steel tubesOutros
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 7304.59
What is HS code 730459?
HS code 730459 is a 6-digit subheading in the Harmonized System that covers: Steel, alloy (not stainless steel); (excluding cold-drawn or cold-rolled), tubes, pipes and hollow profiles of circular cross-section. This HS code covers seamless tubes, pipes, and hollow profiles of circular cross-section made from alloy steel (excluding stainless steel), which have not been cold-drawn or cold-rolled. These products, typically hot-finished, are traded globally for applications requiring the specific properties of alloy steel—such as improved strength, toughness, or heat resistance—but without the need for the precise dimensions or surface finish provided by cold-working. They are widely used in heavy industries like power generation, oil and gas, construction, and general engineering, where robust and durable components are essential. Key importers and exporters include countries with significant industrial bases and infrastructure development, such as China, the United States, Germany, and Russia. The trade is driven by large-scale industrial projects, energy sector demands, and the need for materials that can withstand challenging operational conditions, offering a balance between performance and cost for less precision-critical applications.
What products fall under HS code 730459?
Hot-finished alloy steel pipes, Seamless alloy steel tubes (not cold-worked), High-temperature alloy hollow profiles, Structural alloy steel tubing, Boiler alloy pipes, Heat exchanger alloy tubes, Petrochemical alloy pipes
What are common misclassifications for HS code 730459?
This code is distinguished from 730451 (cold-drawn/rolled alloy steel) by the absence of cold-working, and from 730439 (non-alloy steel, not cold-drawn/rolled) by the presence of alloying elements.
Which countries are the top exporters of goods under HS code 730459?
In 2025, the top exporters of HS code 730459 in UN Comtrade data were China ($473M, 30% of world exports), Germany ($161M) and Italy ($160M). World exports came to about $1.6B, 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 730459?
In 2025, the top importers of HS code 730459 in UN Comtrade data were India ($394M, 19% of world imports), the United States ($213M) and Saudi Arabia ($153M). World imports came to about $2.1B, 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 730459 structured?
HS code 730459 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 (59) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 730459?
Brazil splits HS code 730459 into 2 NCM codes: 7304.59.10 (Hot-finished alloy steel tubes, OD to 229 mm), 7304.59.90 (Other hot-finished seamless alloy steel tubes). The first 6 digits of each match the HS code.