T95 Sour Service Tubing from Mexico
T95 grade tubing qualified for sour service per NACE standards, used in H2S-rich gas reservoirs. HTS 7306.29.81.50 captures this as other drilling tubing with specialized metallurgy. Hardness controlled below 22 HRC for sulfide stress cracking resistance.
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
• Include NACE MR0175/ISO 15156 certificates mandatory for sour service claims
• Segregate from non-sour materials during transport to maintain integrity