9-5/8" 40 ppf P110 Casing with BTC Coupling from China
High-strength P110 grade seamless alloy steel casing, 9-5/8" OD (244.5 mm), 40 lb/ft, with buttress thread couplings (BTC) and 9.2 mm wall thickness for deep well applications. Used in high-pressure oil and gas drilling operations. Fits 7304.29.31.30 as threaded/coupled seamless alloy casing with OD 215.9-285.8 mm and thin walls.
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 detailed grade certificates confirming P110 properties; declare exact OD and wall thickness measured per API specs
• Pitfall: incomplete coupling descriptions causing classification as uncoupled tubes under 7304.29.50