HS code · 6-digit subheading
HS Code 3917.29 – Plastics; tubes, pipes and hoses thereof, rigid, of plastics n.e.c. in heading no. 3917
HS code 3917.29 is the 6-digit subheading for plastics, tubes, pipes and hoses thereof, rigid, of plastics n.e.c. in heading no. 3917. It is used for PTFE rigid tubing, PVDF chemical pipes, ABS drainage pipes, PEEK high-temperature pipes and nylon rigid conduits.
What HS 3917.29 covers
This "basket" HS code covers rigid tubes, pipes, and hoses made from plastics *other than* ethylene, propylene, or vinyl chloride polymers. This category includes a wide range of specialized engineering plastics and high-performance polymers, each offering unique properties like extreme temperature resistance, chemical inertness, or high mechanical strength. Importers are diverse, serving niche markets such as aerospace, medical devices, chemical processing, and high-tech manufacturing, where standard plastic pipes are insufficient. Exporters are typically specialized manufacturers working with advanced polymer compounds. The trade in these products is often high-value, driven by specific industrial requirements and stringent performance standards. Key considerations include the precise polymer type (e.g., PTFE, PVDF, PEEK, ABS), chemical compatibility, temperature range, and specific certifications required for critical applications.
- Covers
- PTFE rigid tubing
- PVDF chemical pipes
- ABS drainage pipes
- PEEK high-temperature pipes
- Nylon rigid conduits
- Polycarbonate rigid tubes
- CPVC hot water pipes
- PPSU medical tubing
- Examples
- 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 can be confused with flexible tubes/hoses of other plastics (e.g., 391739) or with rigid pipes of specific polymers (e.g., 391721-391723) if the polymer type is not clearly identified.
Top exporters and importers of HS code 391729, 2025
In 2025, the largest exporter of HS code 391729 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.
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 3917.29
Brazil does not split HS 3917.29: its NCM code is 3917.29.00.
All Brazil NCM codes in heading 39.17 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 3917.29
What is HS code 391729?
HS code 391729 is a 6-digit subheading in the Harmonized System that covers: Plastics; tubes, pipes and hoses thereof, rigid, of plastics n.e.c. in heading no. 3917. This "basket" HS code covers rigid tubes, pipes, and hoses made from plastics *other than* ethylene, propylene, or vinyl chloride polymers. This category includes a wide range of specialized engineering plastics and high-performance polymers, each offering unique properties like extreme temperature resistance, chemical inertness, or high mechanical strength. Importers are diverse, serving niche markets such as aerospace, medical devices, chemical processing, and high-tech manufacturing, where standard plastic pipes are insufficient. Exporters are typically specialized manufacturers working with advanced polymer compounds. The trade in these products is often high-value, driven by specific industrial requirements and stringent performance standards. Key considerations include the precise polymer type (e.g., PTFE, PVDF, PEEK, ABS), chemical compatibility, temperature range, and specific certifications required for critical applications.
What products fall under HS code 391729?
PTFE rigid tubing, PVDF chemical pipes, ABS drainage pipes, PEEK high-temperature pipes, Nylon rigid conduits, Polycarbonate rigid tubes, CPVC hot water pipes, PPSU medical tubing
What are common misclassifications for HS code 391729?
This code can be confused with flexible tubes/hoses of other plastics (e.g., 391739) or with rigid pipes of specific polymers (e.g., 391721-391723) if the polymer type is not clearly identified.
Which countries are the top exporters of goods under HS code 391729?
In 2025, the top exporters of HS code 391729 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 goods under HS code 391729?
In 2025, the top importers of HS code 391729 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.
How is HS code 391729 structured?
HS code 391729 is a 6-digit subheading under the Harmonized System. The first 2 digits (39) identify the chapter, digits 3-4 (17) identify the heading, and digits 5-6 (29) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 391729?
In Brazil, HS code 391729 is NCM 3917.29.00. The last two digits are 00 because Brazil does not split this HS code further.