Bauxite-Based Refractory Block from Japan
Bauxite-based refractory blocks are fired from calcined bauxite for electric arc furnace roofs, offering high strength at elevated temperatures. They resist molten metal penetration. Classified under HTS 6902.90.50.20 for other refractory ceramic blocks.
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
• Include bauxite origin certificates and firing logs for authenticity
• Declare exact alumina percentage to rule out higher-specificity codes
• Avoid packaging as sets; individual blocks prevent parts classification