Product classification
HS code for Pipe mill: 8455.10
Metal-rolling mills, tube mills.
Classification of pipe mill under HS 8455.10
A pipe mill, specifically a metal-rolling mill used for the production of tubes, is classified under HS code 8455.10. Chapter 84 covers mechanical appliances, and heading 8455 is dedicated to metal-rolling mills and rolls therefor. Subheading 8455.10 is the specific category for tube mills. These are large-scale industrial machines designed to form metal strips into cylindrical shapes and weld or roll them into finished pipes or tubes. The classification is based on the rolling mill mechanism used to shape the metal, distinguishing it from other types of metal-forming machinery that might use different mechanical principles like extrusion or simple bending. A pipe mill is typically a complex assembly of rollers that gradually reduce the thickness or change the shape of the metal. The HS code 8455.10 covers the mill itself, even if it is presented without the rolls, provided it has the essential character of a rolling mill. This classification is vital for heavy industry and infrastructure projects where large-scale pipe production is required. The distinction between a mill and a simple bending machine is the continuous rolling process used in the former.
- Covers
- Seamless pipe rolling mills
- Electric Resistance Welding (ERW) tube mills
- Cold rolling mills for metal tubes
- Hot rolling mills for pipe production
- Longitudinal weld pipe mills
- Also under 8455.10
- SMS Group hot strip mill
- Danieli cold rolling mill
- Primetals Technologies tube mill
- Fives plate mill
Codes often confused with 8455.10
Common mistake. Pipe mills are often confused with 8462, which covers bending and forming machines. While both shape metal, 8455 is specific to the rolling process. Another misclassification occurs with 8455.21 or 8455.22, which are for other types of rolling mills (hot or cold) that do not specifically produce tubes. If the machinery is for finishing pipes (like threading), it might be incorrectly placed here instead of 8459 or 8460.
Top exporters and importers of HS 845510 (the code used for pipe mill), 2025
In 2025, the largest exporter of HS 845510 (the code used for pipe mill) in UN Comtrade data was China, with 49% of world exports; the largest importer in UN Comtrade data was the United States, with 35% 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 845510, not only pipe mill.
Top exporters 2025 · share of world exports
- 1 China $119M 49% of world exports
- 2 Italy $30M 12% of world exports
- 3 Germany $20M 8.2% of world exports
World total: $244M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $99M 35% of world imports
- 2 India $59M 21% of world imports
- 3 Saudi Arabia $17M 6.2% of world imports
World total: $280M 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 pipe mill
Brazil classifies pipe mill under NCM 8455.10.00: HS 8455.10 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about pipe mill
What is the HS code for Pipe mill?
The HS code for Pipe mill is 845510 (Metal-rolling mills; tube mills). The HS code for a metal-rolling mill specifically designed as a tube mill is 8455.10.
How do I classify Pipe mill for customs?
Pipe mill is classified under HS code 845510 — Metal-rolling mills; tube mills. This is a 6-digit subheading level code.
Does HS 8455.10 include the rollers?
Yes, heading 8455 covers both the rolling mills and the rolls (rollers) used within them, though the rolls themselves may have specific subheadings like 8455.30.
Which countries are the top exporters of pipe mill (HS 845510)?
In 2025, the top exporters of HS 845510 (the code used for pipe mill) in UN Comtrade data were China ($119M, 49% of world exports), Italy ($30M) and Germany ($20M). World exports came to about $244M, 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 pipe mill (HS 845510)?
In 2025, the top importers of HS 845510 (the code used for pipe mill) in UN Comtrade data were the United States ($99M, 35% of world imports), India ($59M) and Saudi Arabia ($17M). World imports came to about $280M, 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 Pipe mill the same in all countries?
The base HS code 845510 for Pipe mill 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 pipe mill in Brazil?
In Brazil, pipe mill (HS 845510) is classified under NCM 8455.10.00.