7 inch Duplex Stainless Oilfield Tubing from China
Welded duplex stainless steel tubing (2205 grade), 7-inch diameter, for high-strength oil and gas production tubing strings. Classified in HTS 7306.21.80 as welded stainless tubing for drilling due to its corrosion-fatigue resistance in severe conditions. Used in extended reach drilling operations.
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
• Duplex grades require PREN (Pitting Resistance Equivalent) documentation above 35
• Specify 'tubing' vs 'casing' clearly in all paperwork to hit correct statistical breakouts