11-7/8 inch 54 lb/ft Super Duplex Stainless Tubing from China
Super duplex stainless steel (e.g., 2507) seamless tubing, OD 298.5 mm (11-7/8 inches), for high-strength casing in aggressive subsea gas environments. HTS 7304.24.60.60 covers its seamless stainless steel form and diameter for oil/gas drilling use. Duplex structure resists pitting and stress corrosion.
Duty Rate — China → United States
75%
Rate breakdown
9903.82.0250%Except as provided for in headings 9903.82.14, 9903.85.67 and 9903.85.68, articles of aluminum, of steel or of copper and derivative aluminum or steel articles, as provided for in subdivisions (c)(i)–(v) of U.S. note 16 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
9903.03.060%Articles of aluminum, of steel, or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; and semiconductor articles, of any country, as provided in subdivision (aa)(v) of U.S. note 2 to this subchapter
Import Tips
• Super duplex requires detailed alloy certs (PREN >40); generic 'stainless' declarations rejected
• Measure and declare ID/OD precisely—tolerances affect pressure rating classification
• Partner with licensed customs broker familiar with API oilfield tubing rulings