HS 730300 Tubes and pipes of a kind used in pressure systems
Quick Answer: Tubes and pipes of a kind used in pressure systems imported under HS 730300 enter the UK duty-free, the EU at 3.20% ad valorem, and the US at rates ranging from Free to 33% ad valorem. This classification specifically covers hollow profiles, typically circular, made of cast iron or steel, designed to convey fluids or gases under pressure. It excludes pipes and tubes that are welded or seamless and are not specifically intended for pressure systems, which would fall under different HS codes. Importers should verify the specific end-use and material composition to ensure accurate classification. According to CustomTariffs data, significant duty rate variations exist across major trading blocs, necessitating careful tariff research for cost-effective trade.
What Are the Import Duty Rates?
🇬🇧 United Kingdom
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 7303001000 | 0.00 % | — | — |
| 7303001010 | 0.00 % | — | — |
| 7303001090 | 0.00 % | — | — |
| 7303009000 | 0.00 % | — | — |
| 7303001020 | 0.00 % | — | — |
🇪🇺 European Union (TARIC)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 7303001010 | 3.20 % | — | — |
| 7303001090 | 3.20 % | — | — |
| 7303009010 | 3.20 % | — | — |
| 7303009090 | 3.20 % | — | — |
| 7303001000 | 3.20 % | — | — |
🇺🇸 United States (HTSUS)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 7303000030 | — | — | ["kg"] |
| 7303000090 | — | — | ["kg"] |
| 73030000 | Free | — | — |
| 7303000060 | — | — | ["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
How to Classify This HS Code?
What products does HS 730300 cover?
This subheading covers tubes, pipes, and hollow profiles, of iron or steel, specifically designed and manufactured for use in pressure systems. According to the World Customs Organization (WCO) Harmonized System Explanatory Notes and definitions found in official tariff schedules like the USITC Harmonized Tariff Schedule (HTS) and the EU's TARIC, this classification applies to items intended to convey fluids or gases under pressure, such as those used in plumbing, industrial piping, and hydraulic systems, excluding those for general structural purposes.
What falls outside HS 730300?
The following products are excluded from HS 730300: tubes and pipes of iron or steel not intended for pressure systems, such as those used for general construction, drainage, or as structural components. Also excluded are seamless tubes and pipes of circular cross-section of alloy steel or of stainless steel (classified under 7304), and welded tubes and pipes of circular cross-section of alloy steel or of stainless steel (classified under 7306). For instance, simple steel conduit for electrical wiring would not fall under this heading.
What are common classification mistakes for HS 730300?
A common error is misinterpreting "pressure systems." Importers may incorrectly classify general-purpose steel pipes or tubes that are not specifically engineered to withstand significant internal or external pressure as belonging to HS 730300. This often occurs when the product's intended use is not clearly defined or when the material specifications do not meet the requirements for pressure containment. 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 730300?
The correct procedure for classifying products under HS 730300 involves a thorough examination of the product's technical specifications, intended use, and manufacturing characteristics. Importers and customs brokers must consult the official tariff schedule of the importing country, such as the USITC HTS or the UK Trade Tariff, and review the Explanatory Notes from the WCO. Key factors include whether the product is designed to convey fluids or gases under pressure and its construction method (e.g., welded or seamless, though this heading primarily covers welded or formed pipes).
How is the duty calculated for products under HS 730300?
A shipment of 1,000 meters of welded carbon steel pipe for industrial pressure systems, declared at a customs value of $5,000 USD, would attract a US duty. Assuming a Most Favored Nation (MFN) duty rate of 2.5% ad valorem, the duty would be $125.00 USD ($5,000 × 0.025). This calculation is based on the ad valorem rate applied to the declared customs value, as published in the USITC Harmonized Tariff Schedule.
Which trade agreements reduce duties for HS 730300?
Several free trade agreements may reduce the applicable duty rate for HS 730300. For instance, under the United States-Mexico-Canada Agreement (USMCA), originating goods may receive a preferential rate of Free. Countries like Canada and Mexico would benefit from this. To claim preference under USMCA, a self-certified origin statement on the commercial invoice or a separate certificate of origin is typically required, depending on the specific circumstances and value of the goods, as stipulated by US Customs and Border Protection regulations.
```Which HS Codes Are Related?
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 730300 (Tubes and pipes of a kind used in pressure systems)?
Import duty rates for HS code 730300 vary significantly by importing country. For example, the United States applies a 0.00% Most Favored Nation (MFN) duty rate. In contrast, the European Union, under the Combined Nomenclature (CN), may have rates such as 3.2% ad valorem for certain originating goods. The United Kingdom's Trade Tariff also shows varying rates, often with preferential rates for goods from certain trade partners. Always consult the specific tariff schedule of the importing country for the definitive rate.
How is HS code 730300 defined, and what are the key classification criteria?
HS code 730300 covers 'Tubes, pipes and hollow profiles, of iron or steel, not of cast iron, of a kind used in pressure systems'. The critical criteria for classification are that the product must be a tube, pipe, or hollow profile made of iron or steel (excluding cast iron) and specifically designed or intended for use in pressure systems. This implies the product must be capable of withstanding internal or external pressure, often demonstrated by its wall thickness, material strength, manufacturing process (e.g., seamless or welded to specific standards), and intended application (e.g., for conveying fluids or gases under pressure).
What documentation is typically required when importing goods classified under HS 730300?
Standard import documentation for HS 730300 includes a commercial invoice, packing list, and bill of lading or air waybill. Depending on the importing country and the specific product, additional documentation may be required. This could include a certificate of origin to claim preferential duty rates under trade agreements, material test certificates (e.g., EN 10204) to verify material composition and mechanical properties, and potentially compliance certificates demonstrating adherence to relevant industry standards (e.g., API, ASTM, DIN) for pressure system applications. Importers should verify specific requirements with customs authorities.
How are import duties calculated for HS code 730300, and can you provide an example?
Import duties are typically calculated based on either an ad valorem rate (a percentage of the customs value of the goods) or a specific rate (a fixed amount per unit of quantity). For HS 730300, ad valorem rates are common. For example, if a shipment of steel pipes classified under HS 730300 has a customs value of $10,000 USD and the importing country applies a 3.2% ad valorem duty rate, the import duty would be calculated as: $10,000 (Customs Value) × 0.032 (Duty Rate) = $320 USD. If a specific duty rate applies (e.g., $0.50 per kilogram), the calculation would be: 500 kg (Net Weight) × $0.50/kg = $250 USD. Always confirm the applicable duty basis (ad valorem or specific) and rate.
Which common trade agreements might offer preferential duty rates for HS code 730300?
Preferential duty rates for HS code 730300 can often be accessed through Free Trade Agreements (FTAs) and other preferential trade arrangements. For instance, goods originating from countries that are part of the EU's network of FTAs (e.g., with Canada under CETA, or with Japan) may benefit from reduced or zero duties when imported into the EU. Similarly, goods imported into the United States from countries with which the US has an FTA (e.g., USMCA) may qualify for preferential treatment. The specific rules of origin within each trade agreement must be met, and a valid certificate of origin is usually required to claim these benefits. Always consult the relevant trade agreement and the importing country's customs regulations.