Andalusite Refractory Brick from Canada
Andalusite refractory bricks are fired from clay-andalusite mixes for superior thermal shock resistance in coke ovens and reheat furnaces. They maintain volume stability at high temperatures. This fits 'other' refractory ceramic bricks under HTS 6902.90.50.20.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Include ASTM C373 water absorption tests (<3% typical for refractories) to affirm fired status
• Document raw material sourcing excluding siliceous fossil meals for accurate hierarchy