"3-1/2\" 9.30 from Mexico
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 — Mexico → United States
10%
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
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