Super Duplex Stainless Welded Large Pipe from China
Super duplex 2507 stainless steel longitudinally welded pipe, 24-inch OD, extreme corrosion resistance for seawater injection lines. Classifies under HTS 7305.31.60.10 specifications.
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
• Ferrite content (40-60%) verification via metallographic examination
• Charpy impact test results at -46°C for subsea qualification
• HIC/SSCC resistance certificates for sour service environments