11-3/4 inch 60 lb/ft Super Duplex Stainless Casing from China
Super duplex stainless steel (e.g., SAF 2507) seamless casing pipe with 11-3/4 inch (298.5 mm) OD and 13.8 mm wall thickness for offshore oil production in severe corrosion zones. HTS 7304.24.4040 covers this heavy-wall stainless steel drilling casing in the specified size range. Exceptional pitting and stress corrosion resistance.
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 detailed alloy composition certificates specifying duplex grades; ensure proper marking requirements for stainless traceability; beware of transshipment documentation issues from alloy specialty mills