Tabular Alumina Gunning Refractory from Canada
High-purity tabular alumina for coke oven door linings via gunning. HTS 3816.00.20.50 other refractory provides low porosity at 1750°C service. Petrographic analysis confirms spherical grains.
Duty Rate — Canada → United States
13%
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
• Tabular vs. fused alumina distinguished by process certs
• Bulk density >3.5 g/cm³ verification