Blast Furnace Alumina Brick from Canada
Heavy-duty alumina brick (>50% Al2O3) for blast furnace hot blast stove checker chambers. Refractory properties resist slag erosion and high thermal loads. Classified in 6902.20.10 as high-alumina refractory brick.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Certify compliance with ISO 10081 for high-alumina refractories
• Declare precise dimensions to confirm 'brick' vs 'block' classification
• Watch for anti-dumping duties on Chinese-origin high-alumina bricks