N80 Type 1 Casing Tubing with Premium Coupling from China
Welded non-alloy steel N80 Type 1 tubing for gas well casing, supplied with premium threaded couplings for enhanced sealing. This product is imported as a coupled assembly under HTS 7306.29.60.10, designated for drilling and completion in oil or gas wells. Its cross-section suits hollow profiles for fluid conduction in subsurface 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 coupling torque specs and thread type (e.g
• BTC) in documentation
• Ensure no alloy additives to avoid duty shifts
• Common pitfall: incorrect yield strength declaration leading to audits