High-Alumina Refractory Cement from China
A cement composition primarily made from calcined alumina and calcium aluminate, designed for high-temperature applications in furnaces and kilns. It falls under HTS 3816.00.20 as a refractory cement other than those in heading 3801, providing exceptional resistance to thermal shock and corrosion. Used in lining steel ladles and rotary kilns.
Duty Rate — China → United States
40.5%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Verify chemical composition meets refractory standards (min. 50% alumina) with lab certificates to avoid misclassification
• Include safety data sheets (SDS) for hazardous components like silica; ensure proper packaging for bulk shipments