Product classification
HS code for Cast iron pipe fittings: 7307.11
Cast iron, cast fittings, of non-malleable cast iron.
Classification of cast iron pipe fittings under HS 7307.11
Cast iron pipe fittings fall under HS code 7307.11. These components are used to join pipes, change the direction of flow, or adapt pipe sizes within a piping system. The classification is restricted to fittings made of non-malleable cast iron. In the Harmonized System, heading 7307 covers all types of tube or pipe fittings of iron or steel. The first level of sub-division is between "cast" and "non-cast" fittings. Within the cast category, the code 7307.11 is specifically for non-malleable iron, which is typically grey cast iron. These fittings are commonly used in sanitary drainage, waste, and vent systems where high pressure or high ductility is not required. The classification is determined by the manufacturing process (casting) and the metallurgical properties of the iron used, ensuring that brittle grey iron fittings are distinguished from more flexible malleable iron versions.
- Covers
- Cast iron elbows and bends
- Cast iron tees and crosses
- Cast iron pipe couplings
- Non-malleable iron reducers
- Cast iron pipe plugs and caps
- Sanitary soil pipe fittings
- Also under 7307.11
- McWane ductile iron fittings
- Charlotte Pipe cast iron fittings
- Tyler Pipe cast iron fittings
- Saint-Gobain PAM cast iron fittings
Codes often confused with 7307.11
Common mistake. Cast iron pipe fittings are most often misclassified under 7307.19, which is the code for malleable cast iron fittings. Malleable iron fittings are tougher and can withstand higher pressures, often used in gas or steam lines. Another common error is classifying these under 7307.91 (flanges) or 7307.92 (threaded elbows/sleeves) if the importer does not realize the item is cast. Additionally, if the fitting is made of stainless steel, it must be classified under 7307.21 through 7307.29. It is critical to verify the material grade (grey vs. malleable) before assigning the code.
Top exporters and importers of HS 730711 (the code used for cast iron pipe fittings), 2025
In 2025, the largest exporter of HS 730711 (the code used for cast iron pipe fittings) in UN Comtrade data was China, with 50% of world exports; the largest importer in UN Comtrade data was Germany, with 8.7% 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 730711, not only cast iron pipe fittings.
Top exporters 2025 · share of world exports
- 1 China $614M 50% of world exports
- 2 India $154M 13% of world exports
- 3 Netherlands $69M 5.6% of world exports
World total: $1.2B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Germany $83M 8.7% of world imports
- 2 Japan $44M 4.7% of world imports
- 3 Saudi Arabia $42M 4.4% of world imports
World total: $949M 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 cast iron pipe fittings
Brazil classifies cast iron pipe fittings under NCM 7307.11.00: HS 7307.11 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
EU Regulatory Requirements
This product falls under the Carbon Border Adjustment Mechanism (CBAM). Importers to the EU must declare embedded carbon emissions and purchase CBAM certificates.
Questions about cast iron pipe fittings
What is the HS code for Cast iron pipe fittings?
The HS code for Cast iron pipe fittings is 730711 (Cast iron; cast fittings, of non-malleable cast iron). The HS code for non-malleable cast iron pipe fittings is 7307.11. Malleable cast iron fittings are classified under 7307.19.
How do I classify Cast iron pipe fittings for customs?
Cast iron pipe fittings is classified under HS code 730711 — Cast iron; cast fittings, of non-malleable cast iron. This is a 6-digit subheading level code.
Are cast iron flanges included in 7307.11?
Yes, if the flange is made of non-malleable cast iron and is a pipe fitting, it falls under 7307.11. However, steel flanges often fall under 7307.91.
Which countries are the top exporters of cast iron pipe fittings (HS 730711)?
In 2025, the top exporters of HS 730711 (the code used for cast iron pipe fittings) in UN Comtrade data were China ($614M, 50% of world exports), India ($154M) and the Netherlands ($69M). World exports came to about $1.2B, 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 cast iron pipe fittings (HS 730711)?
In 2025, the top importers of HS 730711 (the code used for cast iron pipe fittings) in UN Comtrade data were Germany ($83M, 8.7% of world imports), Japan ($44M) and Saudi Arabia ($42M). World imports came to about $949M, 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 Cast iron pipe fittings the same in all countries?
The base HS code 730711 for Cast iron pipe fittings 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 cast iron pipe fittings in Brazil?
In Brazil, cast iron pipe fittings (HS 730711) is classified under NCM 7307.11.00.