Chrome-Alumina Refractory Brick from Mexico
Direct-bonded chrome-alumina brick (>50% Al2O3 with chromic oxide) for glass furnace regenerator checkers. Exceptional corrosion resistance to glass melts. Classifies 6902.20.10 despite chrome, as alumina primary.
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
• Analyze for chromic oxide content; high chrome may trigger 6903 scrutiny
• Provide bonding process details (direct vs fused) for classification
• Comply with REACH if EU origin due to hexavalent chromium concerns