Calcium Boride Crystals from Canada
Calcium boride (CaB6) crystals used in refractory materials and neutron absorbers for nuclear applications. Falls under HTS 2850.00.0500 as a chemically defined boride of calcium. Known for high hardness and thermal stability.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Submit crystallographic data if claiming single crystals to justify chemical definition
• For nuclear end-use, prepare IAEA safeguards documentation preemptively
• Avoid retail packaging that might trigger 3824 classification for lab reagents