Calcium Aluminate Cement from China
Calcium aluminate cement, primarily composed of 11CaO·7Al2O3 and 12CaO·7Al2O3 phases, is a hydraulic binder for high-temperature refractory applications. It qualifies as an aluminate under tariff item 2841.90.00 as a salt of oxometallic acid.
Duty Rate — China → Canada
0%
Import Tips
• Be aware that if the cement is mixed with other materials to form a prepared refractory, it may fall under Chapter 38
• Provide the chemical composition to support classification as a pure aluminate