"3-1/2\" 9.30 from China
Q125 grade ultra-high strength seamless tubing, 3-1/2" OD 9.30 lb/ft for H2S sour service environments. Wall 8.26 mm thickness for deep, high-pressure gas wells. Falls under 7304.29.61.15 as alloy steel drilling tubing within size limits.
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 NACE MR0175/ISO 15156 certification for sour service grades
• Measure wall precisely; fractions over 9.5 mm trigger different statistical note
• Include yield strength test certificates ≥125 ksi minimum