Magnesite Refractory Bricks from Japan
High-temperature resistant bricks primarily composed of magnesite, used in lining industrial furnaces and kilns. They fall under HTS 6815.91.00 due to their magnesite content and classification as articles of mineral substances not elsewhere specified. These bricks provide thermal insulation and corrosion resistance in steelmaking and glass production.
Duty Rate — Japan → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Verify magnesite content exceeds 50% via lab certification to confirm 6815.91.00 classification
• Include furnace lining end-use documentation to avoid misclassification as basic shapes under 6819
• Watch for chromite admixture declarations, as it qualifies but may trigger additional inspections