Threaded Alloy Steel Oil Well Casing Pipe from China
Large-diameter (over 16 inches) threaded alloy steel casing pipe designed for oil well drilling, featuring API-standard couplings for secure connections in borehole lining. Classified under HTS 7305.20.60.00 due to its circular cross-section exceeding 406.4 mm, alloy steel composition, and threaded/coupled ends specific for oil/gas drilling applications. The welded construction and size distinguish it from smaller pipes or non-casing tubes.
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
Import Tips
• Verify API 5CT certification and thread specifications to meet casing standards; provide mill test certificates (MTC) for alloy composition
• Common pitfall: incorrect diameter measurement leading to misclassification into smaller pipe headings