Fused Alumina Refractory Block from Japan
Dense blocks of fused alumina (Al2O3 >90%) fired and shaped for blast furnace hearths, offering superior abrasion resistance. Used in heavy industrial construction for high-wear zones. Meets HTS 6902.20.50.10 as 'other' alumina refractory constructional goods.
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
• Furnish firing process details proving >800°C temp to satisfy Chapter note (b) exclusion criteria
• Use precise descriptions like 'refractory blocks for blast furnaces' to avoid classification as generic bricks
• For sets of matching blocks, treat as single articles per US notes if imported together