Sour Service Alloy LSAW Gas Line Pipe from China
Alloy steel LSAW pipe engineered for sour (H2S-containing) gas service, with >16-inch OD and PSB-resistant microstructure per API 5L Annex H. Used in petrochemical gathering lines. Fits 7305.11.50.00 as large-diameter alloy LSAW line pipe.
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
• Include sulfide stress cracking test results to prove sour service design and alloy suitability
• Separate from carbon steel shipments to avoid blending errors in duty calculations
• Utilize HTS Advance for pre-shipment classification rulings to mitigate delays