Product classification
HS code for Metal mill rolls: 8455.30
Metal-rolling mills, rolls thereof.
Classification of metal mill rolls under HS 8455.30
Metal mill rolls are classified under HS code 8455.30. Chapter 84 covers nuclear reactors, boilers, machinery, and mechanical appliances. Heading 8455 is specifically for metal-rolling mills and rolls therefor. Subheading 8455.30 is the dedicated code for the rolls used within these mills. These are heavy-duty cylindrical components used to compress and shape metal ingots, bars, or sheets. The classification is highly specific because these rolls are essential components of the rolling mill machinery. They are typically made of cast iron or forged steel and are engineered to withstand extreme pressure and temperature. Because there is a specific subheading for "rolls," they must be classified here rather than under the general parts subheading (8455.90) or general headings for iron and steel articles. This follows GRI 1, which prioritizes specific descriptions over general ones. The rolls may be smooth for flat products or grooved for shaping sections, but regardless of the surface profile, they remain under 8455.30 if they are designed for metal-rolling mills.
- Covers
- Work rolls for hot rolling mills
- Backup rolls for cold rolling mills
- Intermediate rolls for multi-high mills
- Grooved rolls for bar and wire rod mills
- Cast iron rolls for metal reduction
- Also under 8455.30
- thyssenkrupp rolls
- Hitachi Metals rolls
- Xtek rolls
- Union Electric Steel rolls
- Sarclad rolls
Codes often confused with 8455.30
Common mistake. Metal mill rolls are sometimes misclassified under HS code 8455.90, which is for other parts of rolling mills. However, since 8455.30 specifically names "rolls," it must be used. They are also occasionally confused with HS code 7325 or 7326 (cast or forged articles of iron/steel), but the functional classification as a machine part in Chapter 84 takes precedence over the material classification in Chapter 73.
Top exporters and importers of HS 845530 (the code used for metal mill rolls), 2025
In 2025, the largest exporter of HS 845530 (the code used for metal mill rolls) in UN Comtrade data was China, with 33% of world exports; the largest importer in UN Comtrade data was the United States, with 14% 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 845530, not only metal mill rolls.
Top exporters 2025 · share of world exports
- 1 China $695M 33% of world exports
- 2 Japan $180M 8.6% of world exports
- 3 Germany $179M 8.6% of world exports
World total: $2.1B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $287M 14% of world imports
- 2 India $236M 12% of world imports
- 3 Germany $110M 5.4% 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 metal mill rolls
Brazil splits HS 8455.30 into 3 NCM codes. Pick the one that matches your product:
- 8455.30.10Cast steel or nodular iron mill rolls
- 8455.30.20Forged high-speed steel mill rolls
- 8455.30.90Other rolls for rolling mills
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about metal mill rolls
What is the HS code for Metal mill rolls?
The HS code for Metal mill rolls is 845530 (Metal-rolling mills; rolls thereof). The specific HS code for rolls for metal-rolling mills is 8455.30.
How do I classify Metal mill rolls for customs?
Metal mill rolls is classified under HS code 845530 — Metal-rolling mills; rolls thereof. This is a 6-digit subheading level code.
Does this code include rolls for paper or textile mills?
No, rolls for paper-making machinery are classified under 8439.91, and rolls for calenders (other than metal/glass) are under 8420.91. HS code 8455.30 is strictly for metal-rolling.
Which countries are the top exporters of metal mill rolls (HS 845530)?
In 2025, the top exporters of HS 845530 (the code used for metal mill rolls) in UN Comtrade data were China ($695M, 33% of world exports), Japan ($180M) and Germany ($179M). World exports 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.
Which countries are the top importers of metal mill rolls (HS 845530)?
In 2025, the top importers of HS 845530 (the code used for metal mill rolls) in UN Comtrade data were the United States ($287M, 14% of world imports), India ($236M) and Germany ($110M). 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.
Is the HS code for Metal mill rolls the same in all countries?
The base HS code 845530 for Metal mill rolls 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 metal mill rolls in Brazil?
Brazil splits HS 845530 into 3 NCM codes, so the right one for metal mill rolls depends on the product's details: 8455.30.10 (Cast steel or nodular iron mill rolls), 8455.30.20 (Forged high-speed steel mill rolls), 8455.30.90 (Other rolls for rolling mills).