Q125 High Collapse Casing 4 inch Alloy from China
4 inch OD Q125 grade seamless alloy steel casing with proprietary high collapse strength, 9.3 mm wall thickness for HPHT wells. Meets API 5CT premium class. 7304.23.6030 statistical classification.
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 proprietary grade qualification documentation
• Include finite element analysis reports for collapse rating claims
• Separate proprietary grades from standard API grades on invoice