High-Alumina Refractory Cement from United States
High-alumina refractory cement is a hydraulic cement composed primarily of calcium aluminate, designed for high-temperature applications in furnaces and kilns. It falls under tariff item 2523.30.00 as aluminous cement, provided it is not a refractory mix excluded by Chapter 25 Note 2.
Duty Rate — United States → Canada
0%
Import Tips
• Distinguish the product from refractory ramming mixes, which are excluded under Chapter 25 Note 2(e) and fall under heading 38.16
• Ensure the cement is not mixed with aggregates or additives that make it a specific-use product
• Provide technical data showing it is a hydraulic cement, not a pre-mixed refractory material