Reaction-Bonded Boron Carbide Precursor Powder from Canada
Specialty boron carbide powder designed for reaction-bonded ceramic processing in armor and wear-resistant applications. Remains under HTS 2849.90.10.00 as pure chemical compound prior to sintering.
Duty Rate — Canada → United States
13.7%
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
• Specify 'precursor grade' in commercial invoice to distinguish from finished ceramics
• ITAR/EAR compliance required for armor applications; declare end-use clearly
• Maintain batch traceability; impurity levels >1% may reclassify as mixtures