Product classification
HS code for Steel butt weld fittings: 7307.93
Iron or steel, tube or pipe fittings, butt welding fittings, other than stainless steel.
Classification of steel butt weld fittings under HS 7307.93
The classification of steel butt weld fittings under HS code 7307.93 is based on their function as pipe connectors and their specific method of installation. Heading 7307 covers tube or pipe fittings of iron or steel. Subheading 7307.93 specifically targets "butt welding fittings" made of non-alloy steel (other than stainless steel). Butt welding involves joining the fitting to the pipe by welding the ends together, creating a smooth internal flow and a strong, permanent bond. This is distinct from threaded fittings or socket-weld fittings. The material must be iron or non-alloy steel; if the fitting is made of stainless steel, it is classified under 7307.23. These fittings are essential in high-pressure piping systems found in oil and gas, chemical processing, and power generation industries. The manufacturing process usually involves hot or cold forming of seamless or welded pipes. The fittings must meet specific industrial standards such as ASME B16.9 to ensure they can withstand the required pressure and temperature. The classification is strictly for the fittings themselves and does not include the pipes they are attached to, which are classified in headings 7304, 7305, or 7306.
- Covers
- Steel butt weld elbows
- Butt weld tees
- Concentric and eccentric reducers
- Butt weld pipe caps
- Butt weld crosses
- Also under 7307.93
- Tenaris butt weld fittings
- Erne Fittings
- BKL butt weld fittings
- Awaji butt weld fittings
Codes often confused with 7307.93
Common mistake. These fittings are often confused with 7307.23, which is the code for stainless steel butt weld fittings. They are also misclassified with 7307.91 (flanges) or 7307.92 (threaded or socket-weld elbows and sleeves). It is critical to verify the welding type and the steel grade before classification.
Top exporters and importers of HS 730793 (the code used for steel butt weld fittings), 2025
In 2025, the largest exporter of HS 730793 (the code used for steel butt weld fittings) in UN Comtrade data was China, with 27% of world exports; the largest importer in UN Comtrade data was the United States, with 18% 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 730793, not only steel butt weld fittings.
Top exporters 2025 · share of world exports
- 1 China $448M 27% of world exports
- 2 Italy $307M 18% of world exports
- 3 South Korea $195M 12% of world exports
World total: $1.7B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $302M 18% of world imports
- 2 United Arab Emirates* ~$128M 7.8% of world imports · partner records ↗
- 3 Saudi Arabia $74M 4.5% of world imports
World total: $1.6B 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 code for steel butt weld fittings
Brazil classifies steel butt weld fittings under NCM 7307.93.00: HS 7307.93 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 steel butt weld fittings
What is the HS code for Steel butt weld fittings?
The HS code for Steel butt weld fittings is 730793 (Iron or steel; tube or pipe fittings, butt welding fittings, other than stainless steel). The HS code for butt welding tube or pipe fittings of iron or non-alloy steel is 7307.93.
How do I classify Steel butt weld fittings for customs?
Steel butt weld fittings is classified under HS code 730793 — Iron or steel; tube or pipe fittings, butt welding fittings, other than stainless steel. This is a 6-digit subheading level code.
Can this code be used for stainless steel fittings?
No, stainless steel butt weld fittings must be classified under HS code 7307.23.
Which countries are the top exporters of steel butt weld fittings (HS 730793)?
In 2025, the top exporters of HS 730793 (the code used for steel butt weld fittings) in UN Comtrade data were China ($448M, 27% of world exports), Italy ($307M) and South Korea ($195M). World exports came to about $1.7B, 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 steel butt weld fittings (HS 730793)?
In 2025, the top importers of HS 730793 (the code used for steel butt weld fittings) in UN Comtrade data were the United States ($302M, 18% of world imports), the United Arab Emirates (about $128M) and Saudi Arabia ($74M). World imports came to about $1.6B, 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 Steel butt weld fittings the same in all countries?
The base HS code 730793 for Steel butt weld 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 steel butt weld fittings in Brazil?
In Brazil, steel butt weld fittings (HS 730793) is classified under NCM 7307.93.00.