7304.29.31.50/API 5CT L80 Type 9 Casing Pipe 9-5/8 Inch/China

API 5CT L80 Type 9 Casing Pipe 9-5/8 Inch from China

Seamless alloy steel casing pipe meeting API 5CT L80 Type 9 specifications, with an outside diameter of 9-5/8 inches (244.5 mm), threaded ends, and wall thickness of 10.5 mm, used for oil and gas well casing. It falls under HTS 7304.29.31.50 due to its seamless construction from alloy steel, OD between 285.8 mm and 406.4 mm, and wall thickness less than 12.7 mm.

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

• Obtain API 5CT Monogram License and provide mill test certificates (MTC) confirming chemical composition and mechanical properties for alloy steel

• Verify outside diameter (11.25-16 inches) and wall thickness measurements; common pitfall is misclassification due to imprecise OD specs

• Include ITP (Inspection and Test Plan) documentation and ensure threads match API standards to avoid customs holds