Product classification
HS code for Rigid plastic tubing: 3917.29
Plastics, tubes, pipes and hoses thereof, rigid, of plastics n.e.c. in heading no. 3917.
Classification of rigid plastic tubing under HS 3917.29
Rigid plastic tubing made from materials other than ethylene, propylene, or vinyl chloride is classified under HS code 3917.29. This is a "residual" or "basket" category within the rigid tubing section of Heading 3917. It encompasses tubes made from polymers such as Acrylonitrile Butadiene Styrene (ABS), polyamides (nylon), polycarbonates, or acrylics. The classification requires that the product be a tube, pipe, or hose as defined by the HS nomenclature and that it possesses the characteristic of rigidity. According to the Chapter 39 notes, rigidity is defined by the inability to bend the product at room temperature without causing damage. If the material is a blend of plastics, the classification is determined by the polymer that predominates by weight, unless one polymer is specifically mentioned in the preceding subheadings (3917.21-3917.23). This code ensures that specialized engineering plastics used in industrial piping are correctly accounted for in international trade.
- Covers
- Rigid ABS (Acrylonitrile Butadiene Styrene) pipes
- Nylon (polyamide) rigid tubing
- Polycarbonate (PC) rigid tubes
- Acrylic (PMMA) rigid transparent tubing
- Polystyrene rigid tubes
- Also under 3917.29
- Georg Fischer PVDF pipes
- Saint-Gobain PTFE tubing
- Corzan CPVC pipes
- Arkema Kynar PVDF pipes
Codes often confused with 3917.29
Common mistake. This code is often misclassified with 3917.21, 3917.22, or 3917.23 if the customs broker assumes the plastic is a common variety like PE, PP, or PVC without checking the material composition. It is also frequently confused with 3917.39, which covers "other" plastic tubing that is flexible. If the tubing is reinforced with materials other than plastic (such as metal mesh), it may still fall under 3917.29 if it remains rigid, but careful attention must be paid to the specific wording of the subheading and the Explanatory Notes.
Top exporters and importers of HS 391729 (the code used for rigid plastic tubing), 2025
In 2025, the largest exporter of HS 391729 (the code used for rigid plastic tubing) in UN Comtrade data was Germany, with 13% of world exports; the largest importer in UN Comtrade data was the United States, with 8.9% 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 391729, not only rigid plastic tubing.
Top exporters 2025 · share of world exports
- 1 Germany $361M 13% of world exports
- 2 China $276M 10% of world exports
- 3 United States $234M 8.7% of world exports
World total: $2.7B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $204M 8.9% of world imports
- 2 Germany $184M 8.0% of world imports
- 3 France $141M 6.1% of world imports
World total: $2.3B 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 rigid plastic tubing
Brazil classifies rigid plastic tubing under NCM 3917.29.00: HS 3917.29 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about rigid plastic tubing
What is the HS code for Rigid plastic tubing?
The HS code for Rigid plastic tubing is 391729 (Plastics; tubes, pipes and hoses thereof, rigid, of plastics n.e.c. in heading no. 3917).
How do I classify Rigid plastic tubing for customs?
Rigid plastic tubing is classified under HS code 391729 — Plastics; tubes, pipes and hoses thereof, rigid, of plastics n.e.c. in heading no. 3917. This is a 6-digit subheading level code.
What is the HS code for rigid ABS tubing?
Rigid ABS tubing is classified under HS code 3917.29 as it is a rigid plastic tube not made of ethylene, propylene, or vinyl chloride.
Why is my nylon tubing not under 3917.29?
If your nylon tubing is flexible and can be coiled, it should be classified under 3917.32 or 3917.39 rather than the rigid category of 3917.29.
Which countries are the top exporters of rigid plastic tubing (HS 391729)?
In 2025, the top exporters of HS 391729 (the code used for rigid plastic tubing) in UN Comtrade data were Germany ($361M, 13% of world exports), China ($276M) and the United States ($234M). World exports came to about $2.7B, 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 rigid plastic tubing (HS 391729)?
In 2025, the top importers of HS 391729 (the code used for rigid plastic tubing) in UN Comtrade data were the United States ($204M, 8.9% of world imports), Germany ($184M) and France ($141M). World imports came to about $2.3B, 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 Rigid plastic tubing the same in all countries?
The base HS code 391729 for Rigid plastic tubing 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 rigid plastic tubing in Brazil?
In Brazil, rigid plastic tubing (HS 391729) is classified under NCM 3917.29.00.