HS code · 6-digit subheading
HS Code 8307.10 – Tubing; flexible, with or without fittings, of iron or steel
HS code 8307.10 is the 6-digit subheading for tubing, flexible, with or without fittings, of iron or steel. It is used for flexible metal conduits, corrugated stainless steel tubing, hydraulic hose assemblies (steel), exhaust flex pipes and gas connector hoses (steel).
What HS 8307.10 covers
This category covers flexible tubing, with or without fittings, made of iron or steel. These robust and durable tubes are essential components in a vast array of industrial, automotive, and construction applications, primarily for conveying fluids, gases, or protecting electrical wiring. The international trade is significant, driven by the continuous need for reliable and adaptable piping solutions in manufacturing, infrastructure development, and machinery. Exporters are typically specialized manufacturers of metal hoses and conduits, while importers include industrial equipment suppliers, automotive manufacturers, construction companies, and HVAC system integrators. Key trade factors include material grade (e.g., stainless steel), pressure ratings, temperature resistance, and the type of end fittings, all critical for specific engineering requirements.
- Covers
- Flexible metal conduits
- Corrugated stainless steel tubing
- Hydraulic hose assemblies (steel)
- Exhaust flex pipes
- Gas connector hoses (steel)
- Shower hoses (steel)
- Braided steel hoses
- Examples
- Anaconda Sealtite conduits
- Titeflex metal hoses
- Parker Hannifin hydraulic lines
- Dorma shower hoses
- Flex-Weld corrugated hoses
Codes often confused with 8307.10
Common mistake. Rigid iron/steel tubes are in Chapter 73 (e.g., 7304, 7306). Flexible tubing of other base metals is 830790. Rubber or plastic hoses are in Chapter 39 or 40, depending on material.
Top exporters and importers of HS code 830710, 2025
In 2025, the largest exporter of HS code 830710 in UN Comtrade data was China, with 16% of world exports; the largest importer in UN Comtrade data was Brazil, with 10% 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 China $513M 16% of world exports
- 2 France $505M 16% of world exports
- 3 United Kingdom $382M 12% of world exports
World total: $3.2B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Brazil $315M 10% of world imports
- 2 United States $272M 9.0% of world imports
- 3 Angola $246M 8.2% of world imports
World total: $3.0B 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 8307.10 2
Brazil splits HS 8307.10 into 2 NCM codes, Mercosur's 8-digit tariff lines.
- 8307.10.10 Subsea oil/gas flexible tubing, bore over 254 mmDo tipo utilizado na exploração submarina de petróleo ou gás, constituídos por camadas flexíveis de aço e camadas de plástico, de diâmetro interior superior a 254 mm
- 8307.10.90 Other flexible tubing of iron or steelOutros
All Brazil NCM codes in heading 83.07 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 8307.10
What is HS code 830710?
HS code 830710 is a 6-digit subheading in the Harmonized System that covers: Tubing; flexible, with or without fittings, of iron or steel. This category covers flexible tubing, with or without fittings, made of iron or steel. These robust and durable tubes are essential components in a vast array of industrial, automotive, and construction applications, primarily for conveying fluids, gases, or protecting electrical wiring. The international trade is significant, driven by the continuous need for reliable and adaptable piping solutions in manufacturing, infrastructure development, and machinery. Exporters are typically specialized manufacturers of metal hoses and conduits, while importers include industrial equipment suppliers, automotive manufacturers, construction companies, and HVAC system integrators. Key trade factors include material grade (e.g., stainless steel), pressure ratings, temperature resistance, and the type of end fittings, all critical for specific engineering requirements.
What products fall under HS code 830710?
Flexible metal conduits, corrugated stainless steel tubing, hydraulic hose assemblies (steel), exhaust flex pipes, gas connector hoses (steel), shower hoses (steel), braided steel hoses
What are common misclassifications for HS code 830710?
Rigid iron/steel tubes are in Chapter 73 (e.g., 7304, 7306). Flexible tubing of other base metals is 830790. Rubber or plastic hoses are in Chapter 39 or 40, depending on material.
Which countries are the top exporters of goods under HS code 830710?
In 2025, the top exporters of HS code 830710 in UN Comtrade data were China ($513M, 16% of world exports), France ($505M) and the United Kingdom ($382M). World exports came to about $3.2B, 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 830710?
In 2025, the top importers of HS code 830710 in UN Comtrade data were Brazil ($315M, 10% of world imports), the United States ($272M) and Angola ($246M). World imports came to about $3.0B, 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 830710 structured?
HS code 830710 is a 6-digit subheading under the Harmonized System. The first 2 digits (83) identify the chapter, digits 3-4 (07) identify the heading, and digits 5-6 (10) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 830710?
Brazil splits HS code 830710 into 2 NCM codes: 8307.10.10 (Subsea oil/gas flexible tubing, bore over 254 mm), 8307.10.90 (Other flexible tubing of iron or steel). The first 6 digits of each match the HS code.