Fused Alumina Refractory Block from China
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 — China → United States
37.5%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
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)
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