9-5/8 Inch N80 Type 9Cr Oil Casing Pipe from China
A 9-5/8 inch outer diameter N80 grade casing pipe made of 9Cr alloy steel, welded and used to stabilize wellbores in corrosive oil drilling environments. Classified under HTS 7306.29.41.00 as other steel casing for oil or gas drilling, not having fittings. Its chromium content enhances corrosion resistance for intermediate casing applications.
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
• Declare exact alloy composition (e.g
• 9Cr) and API grade on commercial invoice; provide hydrostatic test certificates
• Pitfall: Failing to specify 'casing' vs 'tubing' can shift to 7306.29.42