Alumina Refractory Checker Brick from United States
Alumina refractory checker bricks are interlocking ceramic blocks made from calcined alumina, designed for use in regenerative heat exchangers within glass furnaces. These bricks are fired at high temperatures to optimize heat recovery and are classified under this tariff item as constructional refractories containing more than 50% alumina by weight.
Duty Rate — United States → Canada
0%
Import Tips
• Ensure the bricks are fired after shaping and contain over 50% alumina by weight, as per Chapter 69 note 1
• Provide a certificate of analysis from the manufacturer to confirm alumina content when clearing customs
• Verify if the goods qualify for duty-free treatment under free trade agreements, as rates may vary