Calcium Aluminate Cement from Germany
Calcium aluminate cement, primarily 11CaO·7Al2O3 and 12CaO·7Al2O3 phases, is a hydraulic binder for high-temperature refractory applications. It qualifies as aluminates under HTS 2841.90.40.00 as salts of peroxometallic acids of aluminum. Supplied as fine powder for casting refractory linings.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Include XRF analysis confirming aluminate phases; ASTM C71 compliance for cement labeling
• Avoid pitfall of classifying as Portland cement mix (2523)
• Dust hazard precautions required for handling