Rotary Kiln Alumina Brick from Mexico
Phosphate-bonded alumina bricks (>70% Al2O3) fired for cement rotary kiln burning zones. Resists alkali attack and coating formation. 6902.20.50 classification as other high-alumina refractory bricks.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Document phosphate bonding system and firing schedule
• Specify burning zone location and temperature profile
• Confirm brick curvature matches kiln diameter specs