Line pipe for oil and gas pipelines, of seamless iron (other than cast iron) or steel, nes

US trade by year

US imports were $406.1M in the 12 months to Aug 2026, up 43% on the 12 months to Aug 2017. US exports were $63.8M, down 11%. Dotted lines mark lasting changes in duty paid, labelled with the supplier, or "Duty" when several moved; the tariff timeline lists each one with its notices.

• Mexico
• Italy
• India
• Turkey
• All countries

Who supplies the US

August 2026. Small figures under each value are the change from August 2025. Landed cost by origin, below, adds freight and duty to the price.

The 3 largest suppliers had 52.6% of US imports over the last 12 months.

Landed cost by origin

What importers paid to land this product at a US port from each main supplier, June–August 2026: the price, freight and insurance to the first US port, and duty, per unit. Suppliers with 3% or more of these imports, cheapest landed first. Small figures under landed cost are the change from the same months a year earlier.

• Price
• Freight and insurance
• Duty

Landed at a US port, Georgia was cheapest, at $1.23/kg: 27.6% below India.

India had the lowest price before freight and duty, $1.04/kg, but they added 64.2% to it.

Landed cost from Turkey rose 16% on a year earlier, to $9.10/kg, mostly on price: $5.31/kg then, $5.97/kg now.

How the market is shifting

India gained the most share: 15.1% of US imports over the last 12 months, up from 6.0% in the 12 months before. Italy lost the most: 16.4%, down from 20.1%. The charts show September 2024 to August 2026 for the 4 largest suppliers over the last 12 months. Dotted lines mark lasting changes in duty paid, labelled with the supplier, or "Duty" when several moved; the tariff timeline lists each one with its notices.

• Mexico
• Italy
• India
• Turkey
• All countries

Tariff actions touching this product

When the duty paid on this product changed and stayed changed, for its main suppliers and all countries, newest first, with the Federal Register notices that named the product in the 3 months before. Rates are medians of the 4 months either side, less any usual seasonal swing. A change shows what happened to duty paid, not why; read each notice for what it did.

1. February–March 2026 · Duty paid: Italy 29.1% → 49.6%, Brazil 32.6% → 50.0%, all countries 41.8% → 48.1%.
2. October 2025 · Duty paid: Brazil 49.1% → 32.6%, Japan 10.7% → 50.0%.
3. May–July 2025 · Duty paid: Mexico 0.4% → 48.3%, Italy 7.4% → 27.1%, India 23.2% → 46.7%, Turkey 21.0% → 50.0%, Japan 0.0% → 10.3%, all countries 12.7% → 35.9%.
4. January 2025 · Duty paid: all countries 4.7% → 11.9%.
5. June 2023 · Duty paid: India 22.0% → 16.4%.
   • Carbon and Alloy Seamless Standard, Line, And Pressure Pipe (Over 41/2 Inches) From Japan: Continuation of the Antidumping Duty OrderJun 14, 2023 · International Trade Administration
   • Carbon and Alloy Seamless Standard, Line and Pressure Pipe (Under 41/2 Inches) From Japan and Romania: Continuation of the Antidumping Duty OrdersJun 13, 2023 · International Trade Administration
6. April 2022 · Duty paid: Italy 8.7% → 0.7%.
7. November 2021 · Duty paid: Italy 23.3% → 8.9%.
   • Seamless Carbon and Alloy Steel Standard, Line and Pressure Pipe From the People's Republic of China: Continuation of Antidumping Duty and Countervailing Duty OrdersSep 14, 2021 · International Trade Administration
   • Seamless Carbon and Alloy Steel Standard, Line, and Pressure Pipe From the Republic of Korea and the Russian Federation: Countervailing Duty OrdersAug 23, 2021 · International Trade Administration
   • Seamless Carbon and Alloy Steel Standard, Line, and Pressure Pipe From the Republic of Korea, the Russian Federation, and Ukraine: Antidumping Duty OrdersAug 23, 2021 · International Trade Administration
8. January 2021 · Duty paid: Italy 4.0% → 21.1%.
   • Seamless Carbon and Alloy Steel Standard, Line, and Pressure Pipe From Czechia, Korea, Russia, and Ukraine; Scheduling of the Final Phase of Countervailing Duty and Antidumping Duty InvestigationsDec 31, 2020 · International Trade Commission
   • Seamless Carbon and Alloy Steel Standard, Line, and Pressure Pipe From the Czech Republic: Preliminary Affirmative Determination of Sales at Less Than Fair ValueDec 21, 2020 · International Trade Administration
   • Seamless Carbon and Alloy Steel Standard, Line, and Pressure Pipe From the Russian Federation: Preliminary Affirmative Countervailing Duty Determination and Alignment of Final Determination With Final Antidumping Duty DeterminationDec 11, 2020 · International Trade Administration
9. September 2020 · Duty paid: all countries 15.2% → 7.9%.
   • Seamless Carbon and Alloy Steel Standard, Line, and Pressure Pipe From Czechia, Korea, Russia, and UkraineAug 28, 2020 · International Trade Commission
   • Seamless Carbon and Alloy Steel Standard, Line, and Pressure Pipe From the Republic of Korea and the Russian Federation: Initiation of Countervailing Duty InvestigationsAug 4, 2020 · International Trade Administration
   • Seamless Carbon and Alloy Steel Standard, Line, and Pressure Pipe From the Czech Republic, the Republic of Korea, the Russian Federation, and Ukraine: Initiation of Less-Than-Fair-Value InvestigationsAug 4, 2020 · International Trade Administration
10. April 2020 · Duty paid: Italy 21.8% → 11.7%.
11. June 2019 · Duty paid: Mexico 25.0% → 0.0%.
    • Carbon and Alloy Seamless Standard, Line and Pressure Pipe (Under 4.5 Inches) From Romania: Preliminary Determination of No Shipments; 2017-2018Jun 17, 2019 · International Trade Administration
    • Request for Comments Concerning Proposed Modification of Action Pursuant to Section 301: China's Acts, Policies, and Practices Related to Technology Transfer, Intellectual Property, and InnovationMay 17, 2019 · Office of the US Trade Representative
12. May–August 2018 · Duty paid: Mexico 0.0% → 25.0%, Italy 0.0% → 23.7%, India 0.6% → 24.9%, Turkey 9.5% → 0.1%, all countries 0.7% → 21.8%.
    • Certain Small Diameter Seamless Carbon and Alloy Standard, Line and Pressure Pipe From Germany: Continuation of Antidumping Duty OrderFeb 28, 2018 · International Trade Administration

Federal Register notices from the last 12 months that list this product's tariff codes. A notice can add a duty, exclude products from one or only mention them, so read each for what it changes. Search the Federal Register for 7304.19

• Seamless Carbon and Alloy Steel Standard, Line, and Pressure Pipe From Georgia and India; Institution of Antidumping and Countervailing Duty Investigations and Scheduling of Preliminary Phase InvestigationsOct 20, 2026 · International Trade Commission

Markets abroad

Each country's own import figures for this product, from UN Comtrade: the 8 biggest importers outside the US in the latest year each has reported, what they bought from the US, and the change from the year before. Values usually include freight and insurance to the importer's border, so they run a little above US export figures. Countries report a year or more late; 121 have reported 2025 so far.

The biggest market outside the US is Norway, which imported $299.0M of this product in 2025, under 0.1% of it from the US.

Of these, imports into Norway grew fastest: up 243% from 2024 to 2025.

Related products

Other products under heading 7304: tubes, pipes and hollow profiles, seamless, of iron (other than cast) or steel. US trade over the 12 months to August 2026.