347H Stainless Refining Furnace Tube from Mexico
Niobium-stabilized 347H welded stainless tubes for high-temperature refining furnace convection sections, thick-walled construction. Creep and corrosion resistant. HTS 7306.40.50.15 for refining furnace applications.
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
• Certify stabilization elements (Nb+Ta) content for high-temperature grade
• Include furnace zone operating profiles in end-use documentation
• Verify against exclusion process for Section 232 steel tariffs