Insulating Refractory Brick from Canada
Insulating refractory bricks are lightweight, fired ceramic bricks with porous structure for furnace back-up insulation, reducing heat loss. They have low thermal conductivity while refractory. Fits HTS 6902.90.50.20 as other refractory constructional bricks.
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
• Provide bulk density and thermal conductivity specs to confirm insulating refractory status
• Distinguish from dense bricks via documentation to stay in 6902
• Ensure no organic binders; only inorganic fired materials per chapter notes