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
10%
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
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