ASTM A106 Grade B Seamless Boiler Tube 20-inch OD 30mm Wall from Mexico
High-temperature seamless carbon steel tube conforming to ASTM A106 for boiler and superheater applications, with 20-inch (508 mm) OD and 30 mm wall thickness. Classified in HTS 7304.39.0080 for its seamless iron/nonalloy steel construction, circular profile exceeding 406.4 mm OD, and thick walls ≥19 mm. Ideal for pressure vessels in power plants.
Duty Rate — Mexico → United States
50%
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
9903.03.060%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
• Provide hydrostatic test certificates and chemical composition analysis to confirm nonalloy steel status
• Label clearly as 'seamless' to distinguish from welded tubes; customs may require NDT reports
• Check for ASME boiler code stamping requirements for end-use compliance in regulated industries