Chamotte Refractory Block from China
Chamotte refractory blocks are made from fired clay grog, offering stable volume and low deformation under high heat, making them suitable for general furnace construction. The blocks are fired after shaping to achieve their refractory properties. They are classified under tariff item 6902.90.00 as refractory ceramic constructional goods other than those of siliceous fossil meals.
Duty Rate — China → Canada
0%
Import Tips
• Document the firing temperature and grog content to confirm Chapter 69 eligibility
• Ensure the blocks are shaped and fired, not just molded, to avoid exclusion
• Keep records of the clay source for CBSA audits on refractory materials