Alumina Refractory Checker Brick from Canada
Interlocking 'checker' bricks of calcined alumina for regenerative heat exchangers in glass furnaces, fired to optimize heat recovery. Constructional refractories >50% Al2O3. Classified HTS 6902.20.50.10.
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
• Provide heat capacity and thermal shock test data supporting refractory use
• Shipped sets considered single articles if matching patterns per US notes
• Avoid Chapter 84 if not furnace subcomponents