14-inch Duplex Stainless Steel Gas Gathering Line Pipe from China

Seamless 14-inch (355.6 mm) OD duplex stainless pipe for onshore gas gathering lines in shale plays. HTS 7304.11.0050 applies due to seamless stainless steel, line pipe function, and diameter limits for oil/gas infrastructure.

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 fracture toughness data (e.g

DWTT >85%) for high-pressure gathering lines to support tariff classification

For FERC-jurisdictional lines, maintain origin traceability to comply with domestic content rules

Separate internal flow coating from pipe classification; coatings often duty-free under 3209 if imported separately