7304.29.31.10/API 5CT L80 Type 9 Casing Pipe/China

API 5CT L80 Type 9 Casing Pipe from China

Seamless alloy steel casing pipe manufactured to API 5CT L80 Type 9 specifications for oil and gas drilling, with threaded connections and coupled ends. Features outside diameter under 215.9 mm and wall thickness less than 12.7 mm, designed for corrosive environments in downhole applications. Classified under 7304.29.31.10 due to its seamless construction, alloy steel composition, and specific dimensions for oil/gas casing.

Duty Rate — China → United States

35%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 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
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Import Tips

• Verify API 5CT certification and provide mill test certificates (MTC) showing chemical composition and mechanical properties

• Confirm outside diameter and wall thickness measurements match HTS specifications to avoid reclassification

• Include end-user declaration specifying oil/gas drilling use to support casing classification