HS code · 6-digit subheading
HS Code 3917.22 – Plastics; tubes, pipes and hoses thereof, rigid, of polymers of propylene
HS code 3917.22 is the 6-digit subheading for plastics, tubes, pipes and hoses thereof, rigid, of polymers of propylene. It is used for PP-R hot water pipes, PP-H chemical drainage pipes, polypropylene ventilation ducts, PP industrial process pipes and PP laboratory drainage systems.
What HS 3917.22 covers
This HS code specifically covers rigid tubes, pipes, and hoses manufactured from propylene polymers, predominantly polypropylene (PP). PP pipes are highly valued for their excellent chemical resistance, high temperature tolerance, and lighter weight compared to some other plastics or metals. Importers are typically involved in chemical processing, industrial plumbing, HVAC systems, and drainage applications, where these properties are critical. Exporters are specialized plastic pipe manufacturers. The trade is driven by industrial demand for reliable and corrosion-resistant piping solutions. Important factors include the specific type of polypropylene (e.g., PP-R for hot water, PP-H for chemical drainage), pressure ratings, and resistance to various chemicals. These pipes are often used in demanding environments where other materials might degrade, offering a durable and cost-effective solution.
- Covers
- PP-R hot water pipes
- PP-H chemical drainage pipes
- Polypropylene ventilation ducts
- PP industrial process pipes
- PP laboratory drainage systems
- PP waste pipes
- PP pressure pipes
- PP conduit
- Examples
- Aquatherm PP-R pipes
- Georg Fischer PP-H piping
- Wefatherm PP-R systems
- IPEX PP industrial piping
Codes often confused with 3917.22
Common mistake. This code can be confused with flexible propylene polymer tubes/hoses (e.g., 391739) or with other rigid plastic pipes (e.g., 391721 for ethylene, 391723 for vinyl chloride).
Top exporters and importers of HS code 391722, 2025
In 2025, the largest exporter of HS code 391722 in UN Comtrade data was Germany, with 15% of world exports; the largest importer in UN Comtrade data was the United States, with 7.4% 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 $195M 15% of world exports
- 2 China $140M 10% of world exports
- 3 Türkiye $127M 9.4% of world exports
World total: $1.3B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $97M 7.4% of world imports
- 2 Mali* ~$83M 6.3% of world imports · partner records ↗
- 3 Germany $79M 6.0% of world imports
World total: $1.3B 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 marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. 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 3917.22 2
Brazil splits HS 3917.22 into 2 NCM codes, Mercosur's 8-digit tariff lines.
- 3917.22.10 Rigid propylene polymer hex tubes, bore under 6 mmDe seção transversal interna redonda de diâmetro inferior a 6 mm e externa hexagonal
- 3917.22.90 Other rigid tubes of propylene polymersOutros
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 3917.22
What is HS code 391722?
HS code 391722 is a 6-digit subheading in the Harmonized System that covers: Plastics; tubes, pipes and hoses thereof, rigid, of polymers of propylene. This HS code specifically covers rigid tubes, pipes, and hoses manufactured from propylene polymers, predominantly polypropylene (PP). PP pipes are highly valued for their excellent chemical resistance, high temperature tolerance, and lighter weight compared to some other plastics or metals. Importers are typically involved in chemical processing, industrial plumbing, HVAC systems, and drainage applications, where these properties are critical. Exporters are specialized plastic pipe manufacturers. The trade is driven by industrial demand for reliable and corrosion-resistant piping solutions. Important factors include the specific type of polypropylene (e.g., PP-R for hot water, PP-H for chemical drainage), pressure ratings, and resistance to various chemicals. These pipes are often used in demanding environments where other materials might degrade, offering a durable and cost-effective solution.
What products fall under HS code 391722?
PP-R hot water pipes, PP-H chemical drainage pipes, Polypropylene ventilation ducts, PP industrial process pipes, PP laboratory drainage systems, PP waste pipes, PP pressure pipes, PP conduit
What are common misclassifications for HS code 391722?
This code can be confused with flexible propylene polymer tubes/hoses (e.g., 391739) or with other rigid plastic pipes (e.g., 391721 for ethylene, 391723 for vinyl chloride).
Which countries are the top exporters of goods under HS code 391722?
In 2025, the top exporters of HS code 391722 in UN Comtrade data were Germany ($195M, 15% of world exports), China ($140M) and Türkiye ($127M). World exports came to about $1.3B, 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.
Which countries are the top importers of goods under HS code 391722?
In 2025, the top importers of HS code 391722 in UN Comtrade data were the United States ($97M, 7.4% of world imports), Mali (about $83M) and Germany ($79M). World imports came to about $1.3B, 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 391722 structured?
HS code 391722 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 (22) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 391722?
Brazil splits HS code 391722 into 2 NCM codes: 3917.22.10 (Rigid propylene polymer hex tubes, bore under 6 mm), 3917.22.90 (Other rigid tubes of propylene polymers). The first 6 digits of each match the HS code.