Acid-Resistant Fireclay Refractory Brick from Mexico
Fireclay brick engineered for resistance to acidic slags and gases in chemical processing kilns. Fired from high-silica clay content for durability at 1350-1500°C. Precisely matches HTS 6902.90.10.10 for other clay 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
• Include chemical analysis showing SiO2 >60% for acid resistance claims during customs valuation
• Avoid co-mingling with basic clay bricks in shipments; segregate for accurate 10.10 suffix reporting