Insulating Alumina Refractory Brick from Germany
Lightweight insulating brick with >50% alumina and porous structure for furnace backup insulation. Fired ceramic retains low thermal conductivity at high temps. 6902.20.10 for high-alumina refractory bricks.
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
• Provide bulk density specs (<1.0 g/cm³ typical for insulating grade)
• Distinguish from dense bricks via thermal performance data
• Confirm no organic binders; must be fully fired inorganic per chapter note