9-5/8 inch 43.5 lb/ft SM25Cr-125 Stainless Casing from China
SM25Cr-125 super martensitic stainless steel casing (244.5 mm OD, 16.2 mm wall thickness) for ultra-HPHT gas wells, seamless API 5CT PSL2. Fits HTS 7304.24.4020 as stainless steel, <215.9 mm OD casing with ≥12.7 mm wall, providing 125 KSI collapse resistance. Used in geothermal and high CO2 environments.
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
• Super martensitic grades require special hardness and HIC (Hydrogen Induced Cracking) test reports for classification support
• Confirm no internal plastic coating, as coated pipes may shift to 7306.60 if for corrosion protection