Threaded N80 Casing for Gas Wells from China
N80 grade nonalloy steel casing with premium threaded couplings, designed for gas well drilling to withstand high pressures. Welded construction with external upset ends for strength. Qualifies under 7306.29.10 as threaded casing of iron or nonalloy steel 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
• Submit thread inspection reports confirming API standards (e.g
• 8-round or buttress threads)
• Label shipments clearly as 'oil/gas drilling casing' to distinguish from line pipe