Super Duplex 2507 Stainless Steel Sour Gas Line Pipe from China
High-strength seamless super duplex 2507 stainless steel pipe for sour gas pipelines, PREN >40 for extreme corrosion resistance. Used in high-pressure gathering lines from wells. Classified under 7304.11.00 as stainless steel seamless line pipe for gas pipelines.
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 duplex requires positive material identification (PMI) testing documentation
• Declare exact wall thickness/schedule as it affects pressure rating verification
• For offshore pipeline use, include DNV-OS-F101 qualification certificates