Andalusite Refractory Block from Mexico
Andalusite refractory blocks contain andalusite (Al2SiO5) yielding more than 50% alumina-silica, used for steel ladle impact zones. These high-fired blocks offer thermal shock resistance in construction applications and are classified under this tariff item as refractory ceramic constructional goods.
Duty Rate — Mexico → Canada
0%
Import Tips
• Provide a chemical analysis showing the alumina and silica content exceeds 50% by weight
• Ensure the blocks are fired after shaping, as per Chapter 69 note 1
• Verify the blocks are for constructional use, as other refractory articles may be classified under different items