Product classification
HS code for Chain components: 7315.90
Chain, parts n.e.c. in heading no. 7315, of iron or steel.
Classification of chain components under HS 7315.90
Chain components made of iron or steel are classified under HS code 731590. This classification is governed by the material composition and the functional identity of the items as parts of a larger assembly. Under the Harmonized System, heading 7315 covers chains and parts thereof of iron or steel. Sub-heading 731590 is a residual category for parts that are not specifically identified in the preceding sub-headings (such as articulated link chains or skid chains). To qualify for this code, the items must be identifiable as being intended solely or principally for use in the chains described in heading 7315. This includes components for both transmission chains and conveyor chains. The classification process requires that the parts be made of iron or steel; if they were made of plastic or other metals, they would be classified in different chapters. Furthermore, the items must have reached a stage of manufacture where they are recognizable as chain parts, such as links that have been forged or stamped into a specific shape. This code is vital for manufacturers who supply individual repair components or sub-assemblies to the industrial and automotive sectors.
- Covers
- Individual steel chain links (forged or cast)
- Connecting pins for industrial roller chains
- Rollers and bushes for articulated link chains
- Side plates and outer plates for steel chains
- Master links and offset links for chain repair
- Also under 7315.90
- Crosby Group chain components
- Peerless Chain accessories
- Columbus McKinnon (CM) chain parts
- Campbell Chain fittings
Codes often confused with 7315.90
Common mistake. A common misclassification is HS code 731511, which is reserved for complete articulated link chains rather than individual parts. Another error involves HS code 7318, which covers general-purpose fasteners like bolts and screws; if a pin is a specialized chain component, it belongs in 731590, not 7318. Additionally, parts for jewelry chains are classified under heading 7117, and parts for bicycle chains may sometimes be incorrectly placed here instead of Chapter 87.
Top exporters and importers of HS 731590 (the code used for chain components), 2025
In 2025, the largest exporter of HS 731590 (the code used for chain components) in UN Comtrade data was Germany, with 20% of world exports; the largest importer in UN Comtrade data was the United States, with 16% 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 731590, not only chain components.
Top exporters 2025 · share of world exports
- 1 Germany $49M 20% of world exports
- 2 China $37M 15% of world exports
- 3 United States $22M 8.6% of world exports
World total: $252M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $55M 16% of world imports
- 2 Malaysia $23M 6.8% of world imports
- 3 Germany $21M 6.3% of world imports
World total: $338M 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 chain components
Brazil classifies chain components under NCM 7315.90.00: HS 7315.90 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about chain components
What is the HS code for Chain components?
The HS code for Chain components is 731590 (Chain; parts n.e.c. in heading no. 7315, of iron or steel). The HS code for parts of iron or steel chains, not elsewhere specified, is 731590.
How do I classify Chain components for customs?
Chain components is classified under HS code 731590 — Chain; parts n.e.c. in heading no. 7315, of iron or steel. This is a 6-digit subheading level code.
Can plastic chain links be classified under 731590?
No, HS code 731590 is strictly for iron or steel components. Plastic chain parts are typically classified under HS code 392690 as other articles of plastics.
Which countries are the top exporters of chain components (HS 731590)?
In 2025, the top exporters of HS 731590 (the code used for chain components) in UN Comtrade data were Germany ($49M, 20% of world exports), China ($37M) and the United States ($22M). World exports came to about $252M, 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 chain components (HS 731590)?
In 2025, the top importers of HS 731590 (the code used for chain components) in UN Comtrade data were the United States ($55M, 16% of world imports), Malaysia ($23M) and Germany ($21M). World imports came to about $338M, 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 Chain components the same in all countries?
The base HS code 731590 for Chain components 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 chain components in Brazil?
In Brazil, chain components (HS 731590) is classified under NCM 7315.90.00.