HS 730723 Butt welding fittings
Quick Answer: Steel pipe and tube fittings for butt welding, designed to join pipes by fusing their ends, are classified under HS code 730723. These fittings are typically made of stainless steel. Imports into the United States face a 5% ad valorem duty rate under the Most Favored Nation (MFN) tariff, though certain trade agreements may offer duty-free entry. In the European Union, the MFN duty rate is 3.70% ad valorem. The United Kingdom generally applies a 0.00% duty rate for these goods. Importers and customs brokers should consult specific trade agreements and the latest tariff schedules for precise duty application, as CustomTariffs aggregates this information.
What Are the Import Duty Rates?
🇬🇧 United Kingdom
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 7307230000 | — | — | — |
| 7307231000 | 0.00 % | — | — |
| 7307231035 | 0.00 % | — | — |
| 7307231040 | 0.00 % | — | — |
| 7307231050 | 0.00 % | — | — |
🇪🇺 European Union (TARIC)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 7307231000 | 3.70 % | — | — |
| 7307231040 | 3.70 % | — | — |
| 7307231055 | 3.70 % | — | — |
| 7307231085 | 3.70 % | — | — |
| 7307239035 | 3.70 % | — | — |
🇺🇸 United States (HTSUS)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 73072300 | 5% | Free (18 programs) | — |
| 7307230090 | — | — | ["kg"] |
| 7307230030 | — | — | ["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 7307.23?
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 16 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 Has Trade Volume Developed?
Trade Volume 2023
How to Classify This HS Code?
What products does HS 730723 cover?
This subheading covers fittings of stainless steel specifically designed for butt welding. According to the World Customs Organization's Harmonized System Nomenclature, these are pipe or tube fittings, such as elbows, tees, and reducers, manufactured from stainless steel and intended to be joined to piping systems by welding directly to the ends of the pipes. The USITC Harmonized Tariff Schedule (HTS) and the EU's TARIC database confirm that this category is for seamless or welded fittings made from stainless steel, designed for high-pressure or corrosive environments, and manufactured to precise dimensional standards for secure joint formation.
What falls outside HS 730723?
The following products are excluded from HS 730723: fittings made from other metals, such as carbon steel (classified under 7307.91 through 7307.99), or non-metallic materials. Also excluded are threaded or flanged fittings (classified under 7307.21 and 7307.22 respectively), as well as couplings, unions, and other joining devices not specifically designed for butt welding. For instance, a stainless steel threaded coupling would be classified under 7307.21, not 7307.23.
What are common classification mistakes for HS 730723?
A common error is misclassifying fittings based solely on material without considering the joining method or the specific type of stainless steel. For example, mistaking a flanged stainless steel fitting for a butt-welding fitting, or incorrectly classifying a fitting made from a non-stainless alloy steel. According to General Rule of Interpretation (GRI) 1, classification is determined by the terms of the headings and any relative section or chapter notes. Importers must verify the material composition and the intended method of connection to ensure accurate classification under 7307.23.
How should importers classify products under HS 730723?
The correct procedure for classifying products under HS 730723 involves a multi-step verification process. Importers and customs brokers must first identify the material of the fitting, confirming it is stainless steel. Secondly, they must ascertain the intended method of connection, ensuring it is designed for butt welding. Reviewing product specifications, technical drawings, and manufacturer declarations is crucial. Consulting official tariff schedules like the USITC HTS or EU TARIC, and their respective explanatory notes, will provide definitive guidance for accurate classification.
How is the duty calculated for products under HS 730723?
A stainless steel elbow fitting for butt welding, weighing 2.5 kg and declared at a customs value of $50.00 USD, would attract a US duty of $2.50. This is calculated using the Most Favored Nation (MFN) duty rate of 10% ad valorem, applied to the customs value. The calculation is: 10% of $50.00 = $5.00. However, if the fitting is also subject to a specific duty based on weight, for example, $1.00 per kg, the duty would be $1.00/kg * 2.5 kg = $2.50. The higher of the two duties would apply. This is calculated using the rates published in the USITC Harmonized Tariff Schedule.
Which trade agreements reduce duties for HS 730723?
Several free trade agreements may reduce the applicable duty rate for HS 730723, including the United States-Mexico-Canada Agreement (USMCA). Under USMCA, qualifying fittings originating from Canada or Mexico can enter the United States duty-free. For example, a butt welding fitting manufactured in Mexico and meeting the USMCA rules of origin would be eligible for a 0% duty rate. To claim this preference, a self-certified origin statement on the commercial invoice or a separate certificate of origin is typically required by US Customs and Border Protection.
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FAQ
What are the primary import duty rates for HS code 730723 (butt welding fittings of stainless steel)?
The Most Favored Nation (MFN) duty rate for HS code 730723, covering butt welding fittings of stainless steel, is typically 3.70% ad valorem in the United States. For the European Union, the Common Customs Tariff (CCT) rate is 0.00%. In the United Kingdom, the duty rate is also 0.00%. These rates are subject to change and may be affected by specific trade agreements or temporary measures. Always consult the latest official tariff schedules for the importing country, such as the USITC Harmonized Tariff Schedule, the EU TARIC database, or the UK Trade Tariff, for the most current and precise duty information.
How is the duty for HS code 730723 calculated, and can you provide an example?
The duty for HS code 730723 is typically calculated on an ad valorem basis, meaning it is a percentage of the declared customs value of the goods. For example, if the United States MFN duty rate of 3.70% applies to a shipment of butt welding fittings valued at $10,000, the import duty would be calculated as: $10,000 (Value) × 0.0370 (Duty Rate) = $370.00. It is crucial to ensure accurate valuation of the imported goods, as this forms the basis for duty calculation.
What are the classification criteria for butt welding fittings under HS code 730723?
HS code 730723 specifically covers 'butt welding fittings of stainless steel' under the broader heading 7307, which pertains to 'tube or pipe fittings of iron or steel'. Key classification criteria include: 1. Material: The fittings must be made of stainless steel. Stainless steel is defined by its chromium content (typically at least 10.5%) which provides corrosion resistance. 2. Function: The fittings are designed to join sections of pipe or tubing through the process of butt welding, where the ends of the pipes or fittings are prepared and fused together. 3. Form: This includes items like elbows, tees, reducers, and caps designed for this welding method. Items not meeting the stainless steel requirement or designed for other joining methods (e.g., threaded or flanged) would fall under different subheadings or headings.
Which trade agreements offer preferential duty rates for HS code 730723, and what are typical rates?
Several trade agreements can provide preferential duty rates for HS code 730723. For instance, under the United States' Generalized System of Preferences (GSP) or specific Free Trade Agreements (FTAs), imports from eligible countries may receive reduced or duty-free treatment. The EU and UK also have numerous trade agreements. For example, under the EU's preferential trade agreements, duty rates can be as low as Free (indicated by 'Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)' in some tariff schedules, representing specific country codes and preferential schemes). Importers must verify the origin of the goods and ensure they meet the rules of origin stipulated in the relevant trade agreement to claim preferential treatment. Documentation such as a Certificate of Origin is often required.
What documentation is typically required for importing butt welding fittings under HS code 730723?
Standard documentation for importing butt welding fittings under HS code 730723 generally includes a commercial invoice, packing list, and bill of lading or air waybill. Crucially, to ensure correct classification and potential preferential duty claims, a declaration of conformity to material specifications (confirming it is stainless steel) and potentially a Certificate of Origin may be required. For goods claiming preferential treatment under a Free Trade Agreement, a valid Certificate of Origin is essential. Customs brokers should also be prepared to provide technical specifications or product literature if requested by customs authorities to verify the nature and intended use of the fittings, especially to confirm they are indeed for butt welding.