Calcined Chamotte Refractory Clay from Germany
Calcined chamotte is a high-alumina fired clay aggregate used primarily in refractory brick manufacturing for high-temperature applications like furnace linings. It falls under HTS 2508.70.00.00 as chamotte earth, which is specifically defined as a type of dinas earth processed through calcination to achieve thermal stability. This material is not expanded and remains in granular or powdered form suitable for refractory production.
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 calcination process documentation to distinguish from raw clays; ensure particle size specs match chamotte standards to avoid reclassification; obtain supplier certificates confirming suitability only for refractory use, not expanded forms