HS 730793 Butt welding fittings
Quick Answer: Steel pipe or tube fittings, specifically those designed for butt welding, enter the UK duty-free, the EU at 3.70% ad valorem, and the US with rates varying significantly, including a 6.2% Most Favored Nation (MFN) rate and a 45% rate for certain origins, alongside duty-free options for specific trade agreements. Butt welding fittings are components used to join pipes or tubes by fusing their ends together, commonly found in industrial piping systems for oil, gas, and water. Importers should consult the specific tariff schedule for their destination country, as preferential trade agreements can substantially alter the duty burden. CustomTariffs aggregates this data to assist in compliance.
What Are the Import Duty Rates?
🇬🇧 United Kingdom
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 7307939110 | 0.00 % | — | — |
| 7307930000 | — | — | — |
| 7307931100 | 0.00 % | — | — |
| 7307931119 | 0.00 % | — | — |
| 7307931130 | 0.00 % | — | — |
🇪🇺 European Union (TARIC)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 7307931993 | 3.70 % | — | — |
| 7307931100 | 3.70 % | — | — |
| 7307931119 | 3.70 % | — | — |
| 7307931191 | 3.70 % | — | — |
| 7307931194 | 3.70 % | — | — |
🇺🇸 United States (HTSUS)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 7307939010 | — | — | ["kg"] |
| 730793 | — | — | — |
| 73079330 | 6.2% | Free (18 programs) | — |
| 7307933010 | — | — | ["kg"] |
| 7307933040 | — | — | ["kg"] |
Special rates available under trade agreements including USMCA, KORUS, GSP.
Duty rates sourced from the USITC (US International Trade Commission) Harmonized Tariff Schedule (HTS) (accessed 2/22/2026), EU TARIC – DG TAXUD (Directorate-General for Taxation and Customs Union) (accessed 2/22/2026), and UK Trade Tariff – HMRC (His Majesty's Revenue and Customs) (accessed 2/22/2026).
Data compiled and presented by HSRates.
Which Trade Agreements Reduce Duties for HS 7307.93?
Imports of Butt welding fittings may qualify for reduced or zero duty rates under free trade agreements and preferential programs. The overview below shows available preferential arrangements by jurisdiction, compiled by HSRates from official tariff and trade agreement data.
United States (HTSUS)
Free for USMCA, KORUS, and 17 other programs
European Union (TARIC)
Preferential rate data not yet available.
United Kingdom
Preferential rate data not yet available.
Preferential rates require proof of origin and may be subject to quotas or conditions. Always verify eligibility with a licensed customs broker.
Data compiled by HSRates.
Which Preferential Rates Apply to Your Origin Country?
Select an origin country to see if preferential rates apply.
Preferential rates based on available trade agreements. Actual rates may vary.
How to Classify This HS Code?
What products does HS 730793 cover?
This subheading covers fittings of iron or steel, specifically those designed for butt welding. According to the World Customs Organization's Harmonized System Nomenclature, this category encompasses pipe or tube fittings made from iron or steel, intended for joining pipes or tubes through the process of butt welding, where the ends are fused together. Official definitions from sources like the USITC Harmonized Tariff Schedule (HTS) and the EU's TARIC system confirm that these are typically seamless or welded fittings such as elbows, tees, reducers, and caps, manufactured from ferrous materials for pipeline applications.
What falls outside HS 730793?
The following products are excluded from HS 730793: fittings made from materials other than iron or steel, such as plastics or copper; fittings intended for other joining methods like threaded connections (classified under 7307.99) or flanged connections; and complete piping systems or sections of pipe. For instance, a plastic pipe elbow would be classified elsewhere, as would a steel pipe with a flange already attached, which is considered a component of a larger assembly rather than a standalone fitting for butt welding.
What are common classification mistakes for HS 730793?
A common error is misinterpreting the joining method. Importers may mistakenly classify threaded or flanged fittings under 730793 when they should be classified under other subheadings within 7307, such as 7307.99, which covers other fittings. This is often due to a lack of detailed product specifications or a misunderstanding of the General Rules for the Interpretation of the Harmonized System (GRI), particularly GRI 1, which states classification shall be determined according to the terms of the headings and any relative section or chapter notes.
How should importers classify products under HS 730793?
The correct procedure for classifying products under HS 730793 involves a thorough examination of the product's material, intended use, and method of joining. Importers and customs brokers must verify that the fitting is indeed made of iron or steel and is specifically designed for butt welding. Consulting the official tariff schedule of the importing country, such as the USITC HTS or the UK Trade Tariff, and reviewing the explanatory notes for heading 7307 is crucial to ensure accurate classification.
How is the duty calculated for products under HS 730793?
A shipment of 100 carbon steel butt weld elbows, each weighing 2 kg, for a total weight of 200 kg, declared at a customs value of $1,000 USD, would attract a US duty. Assuming a Most Favored Nation (MFN) duty rate of 3.1% ad valorem from the USITC Harmonized Tariff Schedule, the duty would be $31.00 USD (3.1% × $1,000 USD). If a specific duty per unit of weight were applicable, for example, $0.05 per kg, the duty would be $10.00 USD (0.05 × 200 kg).
Which trade agreements reduce duties for HS 730793?
Several free trade agreements may reduce the applicable duty rate for HS 730793, including the United States-Mexico-Canada Agreement (USMCA). Under USMCA, qualifying butt welding fittings originating from Canada or Mexico can enter the United States duty-free. To claim this preference, a valid origin declaration or certificate of origin is typically required. For goods originating from countries benefiting from the Generalized System of Preferences (GSP) in some jurisdictions, preferential rates may also apply, often requiring a GSP Form A.
```Which HS Codes Are Related?
Not the right code? Search all HS codes to find the correct tariff classification.
FAQ
What are the primary import duty rates for HS code 730793, covering 'Other' butt welding fittings of iron or steel?
The Most Favored Nation (MFN) duty rate for HS code 730793 is typically 3.70% ad valorem in the United States. However, preferential rates can significantly reduce or eliminate duties under various trade agreements. For example, under the US-Australia Free Trade Agreement (AU), the rate is Free. It is crucial to consult the latest US Harmonized Tariff Schedule (USHTS) for the most current and specific rates applicable to your country of origin.
How is the duty for HS code 730793 calculated, and can you provide an example?
The duty for HS code 730793 is generally calculated on an ad valorem basis, meaning it's a percentage of the declared customs value of the goods. For instance, if you import butt welding fittings valued at $10,000 USD and the MFN duty rate is 3.70%, the calculated duty would be $10,000 * 0.0370 = $370.00. Always ensure your customs value is accurately declared according to the principles of the WTO Customs Valuation Agreement.
What specific criteria determine if a fitting falls under HS code 730793 ('Other' butt welding fittings)?
HS code 730793 is a residual category for butt welding fittings of iron or steel that are not specifically classified elsewhere in heading 7307. This includes fittings designed to join pipes by welding them directly onto the pipe ends, where the fitting itself is prepared for this welding process. Key classification criteria include the material (iron or steel), the method of joining (butt welding), and the absence of specific features or types that would place it in a more specific subheading (e.g., threaded or flanged fittings).
Which common trade agreements offer preferential duty rates for HS code 730793 into the United States?
Several trade agreements provide preferential duty rates for HS code 730793 into the United States. These often include agreements with countries like Australia (AU), which offers a Free rate. Other agreements may offer reduced rates. Importers should verify the specific preferential status and requirements for their country of origin by checking the USHTS, specifically Chapter 98 and the General Notes, which detail the provisions for each Free Trade Agreement.
What documentation is typically required when importing butt welding fittings under HS code 730793?
Standard import documentation for HS code 730793 includes a commercial invoice, packing list, and bill of lading or air waybill. Depending on the country of origin and any claimed preferential duty rates, a Certificate of Origin may be required to prove eligibility under a Free Trade Agreement. Manufacturers' specifications or technical drawings might also be requested by customs authorities to verify the classification and intended use of the fittings, particularly to confirm they are indeed designed for butt welding.