High-Alumina Firebrick from Japan
High-alumina firebrick containing over 50% alumina (Al2O3), fired after shaping for high-temperature resistance. Used in furnaces and kilns for lining to withstand extreme heat. Classifies under 6902.20.10.10 as refractory bricks made primarily of alumina.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Verify alumina content exceeds 50% by weight via certified lab test (ASTM standards) for proper classification
• Provide firing certificates confirming post-shaping firing above 800°C to meet Chapter 69 requirements
• Avoid misclassification as non-refractory ceramics; include end-use documentation for industrial furnace applications