Blast Furnace Alumina Brick from Mexico
Dense alumina bricks designed for blast furnace linings, with >50% Al2O3 for corrosion resistance against molten metal. Refractory ceramic goods fired after shaping per Chapter 69 definitions. Specifically 'alumina' bricks under 6902.20.10.10.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include manufacturer specs on refractoriness under load (RUL) to prove industrial refractory purpose
• For container loads, segregate from non-refractory ceramics to avoid commingling classification issues