HS 730531 Other, welded

Quick Answer: Tubes and pipes of iron or steel, other than those of circular cross-section, welded, imported under HS 730531 enter the UK at 0.00%, the EU at 0.00%, and the US with rates ranging from Free to 45% ad valorem. This classification specifically covers welded tubes and pipes of iron or steel that are not circular in cross-section, such as those with a square or rectangular profile. Importers should be aware of the significant duty rate variations in the US market, necessitating careful verification based on specific product characteristics and end-use. CustomTariffs aggregates this data, highlighting the importance of precise classification for accurate duty assessment.

What Are the Import Duty Rates?

🇬🇧 United Kingdom

Code MFN Preferential Unit
7305310000 0.00 % — —

🇪🇺 European Union (TARIC)

Code MFN Preferential Unit
7305310000 0.00 % — —

🇺🇸 United States (HTSUS)

Code MFN Preferential Unit
7305312000 Free — ["kg"]
73053160 Free — —
7305316090 — — ["kg"]
730531 — — —
7305314000 Free — ["kg"]

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.

How Has Trade Volume Developed?

Trade Volume 2023

US$66.2M
ImportsExports

How to Classify This HS Code?

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What products does HS 730531 cover?

This subheading covers tubes, pipes, and hollow profiles, of iron or steel, of circular cross-section, with an external diameter exceeding 406.4 mm, which are welded longitudinally. According to the World Customs Organization's Harmonized System Explanatory Notes and definitions found in the USITC Harmonized Tariff Schedule (HTS) and the EU's TARIC database, this classification applies to welded steel pipes and tubes that are not further worked beyond the welding process and meet the specified diameter threshold, excluding those with coatings or linings not integral to the basic structure.

What falls outside HS 730531?

The following products are excluded from HS 730531: tubes and pipes of non-circular cross-section, those with an external diameter of 406.4 mm or less, seamless tubes and pipes, and those made from materials other than iron or steel. Also excluded are finished articles such as fabricated pipe sections for specific uses (e.g., culverts) or those with significant subsequent processing like galvanizing or lining, which would be classified under different headings based on their specific characteristics and end-use.

What are common classification mistakes for HS 730531?

A common error is misinterpreting the diameter requirement or the welding method. For instance, tubes with an external diameter of 406.4 mm or less are classified under HS 730539. Another mistake involves classifying seamless pipes under this heading; seamless pipes are specifically excluded and fall under HS 730511 or 730512. Adherence to General Rule of Interpretation (GRI) 1, which states that classification shall be determined according to the terms of the headings and any relative Section or Chapter Notes, is crucial.

How should importers classify products under HS 730531?

The correct procedure for classifying products under HS 730531 involves a multi-step process. Importers and customs brokers must first determine the material (iron or steel), the cross-sectional shape (circular), the method of manufacture (welded longitudinally), and critically, the external diameter, ensuring it exceeds 406.4 mm. Verification against the official tariff schedule, such as the USITC HTS or EU TARIC, and consulting product specifications are essential to confirm that no other heading or subheading more specifically describes the goods.

How is the duty calculated for products under HS 730531?

A shipment of 100 metric tons of welded steel pipe, with an external diameter of 500 mm, declared at a customs value of $150,000 USD, would attract a US duty. Assuming a Most Favored Nation (MFN) duty rate of 1.5% ad valorem, the duty would be $2,250 USD (1.5% × $150,000). This calculation is based on the ad valorem rate applied to the declared customs value, as published in the USITC Harmonized Tariff Schedule for HS code 730531.

Which trade agreements reduce duties for HS 730531?

Several free trade agreements may reduce the applicable duty rate for HS 730531, including the United States-Mexico-Canada Agreement (USMCA), which can result in a duty rate of Free for qualifying goods originating from Canada or Mexico. Additionally, the Generalized System of Preferences (GSP) may offer reduced or Free duty rates for eligible goods from developing countries. To claim these preferences, importers typically require a self-certified origin statement for USMCA or a GSP Form A for GSP beneficiaries, depending on the specific agreement and originating country.

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Which HS Codes Are Related?

HS 730512 HS 730661 HS 730590 HS 730431 HS 730539 HS 730630

Not the right code? Search all HS codes to find the correct tariff classification.

FAQ

What are the typical import duty rates for HS code 730531?

Import duty rates for HS code 730531, which covers 'Other tubes and pipes, of circular cross-section, of iron or steel, the cross-section of which is not of circular shape, welded, of an external width not exceeding 406,4 mm: Other: Welded', vary significantly by country. For example, the United States applies a 0.00% duty rate under its Most Favored Nation (MFN) tariff. The European Union's TARIC system may have different rates depending on the origin, with some potentially being Free. The UK Trade Tariff also lists varying rates, often Free for goods from certain preferential trade partners. It is crucial to consult the specific tariff schedule of the importing country for the definitive rate applicable to your shipment's origin.

How is the duty for HS code 730531 calculated if a duty rate applies?

The calculation depends on whether the duty is ad valorem (a percentage of the value) or specific (a fixed amount per unit). For instance, if a country applies a 4.5% ad valorem duty on HS 730531 and the declared value of the imported goods is $10,000 USD, the duty would be $10,000 USD * 4.5% = $450 USD. If a specific duty applies, such as $10 per metric ton, and you import 5 metric tons, the duty would be 5 metric tons * $10/metric ton = $50 USD. Always verify the duty basis (ad valorem, specific, or a combination) in the importing country's tariff schedule.

What are the key classification criteria for HS code 730531?

HS code 730531 is specifically for 'Other tubes and pipes, of circular cross-section, of iron or steel, the cross-section of which is not of circular shape, welded, of an external width not exceeding 406,4 mm: Other: Welded'. The critical elements for classification are: 1) Material: Must be iron or steel. 2) Form: Tubes or pipes. 3) Cross-section: Not circular. 4) Method of manufacture: Welded. 5) External width: Not exceeding 406.4 mm. If the cross-section is circular, it would fall under a different HS code (e.g., 7306). If it's seamless, it would also be classified elsewhere. Ensuring all these criteria are met is vital for correct classification.

Which trade agreements commonly offer preferential duty rates for goods classified under HS 730531?

Preferential duty rates for HS code 730531 are often available through various free trade agreements (FTAs) and preferential trade schemes. For example, goods originating from countries that are part of the European Union's network of FTAs (e.g., with Canada, Japan) may benefit from reduced or zero duties when imported into the EU. Similarly, the UK's trade agreements post-Brexit, such as the UK-Australia FTA or UK-Japan Comprehensive Economic Partnership Agreement, can provide preferential access. In the US, the Generalized System of Preferences (GSP) or specific FTAs might apply depending on the exporting country. Importers must verify the Rules of Origin for each relevant trade agreement to confirm eligibility for preferential treatment.

What documentation is typically required for importing goods under HS code 730531?

Standard import documentation for HS code 730531 typically includes a commercial invoice detailing the value, quantity, and description of the goods; a packing list; and a bill of lading or air waybill. Depending on the importing country and the origin of the goods, a Certificate of Origin may be required to claim preferential duty rates under a trade agreement. Some countries may also request technical specifications or material certifications to verify compliance with national standards or the HS classification criteria. Always consult the customs authority of the destination country for a comprehensive list of required documents.