</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

API 5CT L80 Type 9 Casing Pipe from China

Seamless alloy steel casing pipe meeting API 5CT L80 Type 9 specifications, used to line oil and gas wells during drilling operations. It features enhanced collapse resistance and tensile strength suitable for corrosive environments. Classified under 7304.29.41 as other seamless alloy steel casing for oil/gas drilling, not high-strength types.

Duty Rate — China → United States

75%

Rate breakdown

9903.82.0250%Except as provided for in headings 9903.82.14, 9903.85.67 and 9903.85.68, articles of aluminum, of steel or of copper and derivative aluminum or steel articles, as provided for in subdivisions (c)(i)–(v) of U.S. note 16 to this subchapter
9903.91.0125%Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter
9903.03.060%Articles of aluminum, of steel, or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; and semiconductor articles, of any country, as provided in subdivision (aa)(v) of U.S. note 2 to this subchapter

Import Tips

Verify API 5CT certification and material test reports (MTRs) for alloy composition to confirm 7304.29.41 classification

Include mill test certificates showing seamless production and exact steel alloy grades to avoid reclassification as welded pipe

Ensure proper marking of outer diameter, weight, and grade per API standards to prevent customs valuation disputes