16 inch 94 lb/ft P-110 Casing from China
Heavy-wall seamless P-110 grade alloy steel casing with 16-inch OD, 94 lb/ft, threaded and coupled, designed for high-pressure oil and gas wells. Falls under HTS 7304.29.31.80 as seamless 'other alloy steel' casing for drilling, with OD >406.4 mm and premium yield strength. Used to line wellbores in deep drilling operations.
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
• Include detailed dimensional specs and weight per foot in commercial invoice; API 5CT monogram mandatory
• Pitfall: incorrect OD measurement leading to subheading shift to smaller diameters