Heavy Wall Seamless Steel Casing Pipe 10-inch OD 30mm Thick from China
Seamless non-alloy steel casing pipe with 254 mm OD and 30 mm wall thickness, used for oil well drilling to line boreholes. Classified under HTS 7304.39.0056 for its iron/non-alloy steel composition, circular seamless profile, and thick walls over 19 mm in the 190.5-285.8 mm OD range. Essential for structural support in petroleum extraction.
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
• Provide hydrostatic test certificates proving pressure integrity; check for anti-dumping duties on casing from certain origins
• Pitfall: confusing casing with tubing—casing has thicker walls
• Include chemical composition analysis in entry docs