High-Alumina Refractory Firebrick from Germany
High-alumina refractory firebricks containing over 50% Al2O3, fired after shaping for use in high-temperature furnaces and kilns. These bricks provide excellent thermal shock resistance and corrosion resistance in industrial applications like steelmaking. Classified under 6902.20.50 as refractory ceramic constructional goods other than siliceous fossil meals.
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
• Verify chemical composition via lab testing to confirm >50% Al2O3 or SiO2 content for proper classification
• Provide firing temperature documentation (>800°C) to distinguish from non-refractory ceramics
• Avoid misclassification as building bricks (6904) by specifying industrial high-heat end-use