Magnesia-Alumina Refractory Brick from Mexico
Refractory bricks blending >50% Al2O3 with magnesia for basic oxygen furnace linings, fired to high temperatures. Offers superior slag resistance in steel production. HTS 6902.20.50 applies to these 'other' high-alumina/silica content refractory bricks.
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
• Submit XRF analysis reports proving >50% combined Al2O3/SiO2
• Label as 'refractory use only' to prevent end-use misclassification
• Bundle with end-use certificates for kiln/furnace applications