Andalusite Refractory Block from Germany
Refractory blocks containing andalusite (Al2SiO5) yielding >50% alumina-silica, for steel ladle impact zones. High-fired for thermal shock resistance in construction applications. Classed under 6902.20.50.20 as other alumina-silica refractory goods.
Duty Rate — Germany → 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
• Include petrographic analysis showing crystalline structure post-firing
• Segregate from earthenware shipments; refractories cannot absorb >3% water per US notes