16 Inch Intermediate Casing Threaded Steel from China
16-inch N80 intermediate casing with LTC (Long Threaded and Coupled) connections for oil well protection against collapse. Welded non-alloy steel API 5CT pipe. Classified under 7306.29.10.90 as other threaded casing for drilling.
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
• Intermediate casing requires zonal isolation documentation for end-use verification
• LTC vs STC threads affect torque ratings—specify in import docs
• Rust preventive coating must be declared to avoid chemical treatment classification