Insulating Fireclay Refractory Brick from Canada
Lightweight insulating brick made from fireclay with high porosity for thermal insulation in high-temperature furnaces. Maintains structural integrity up to 1400°C while minimizing heat loss. HTS 6902.90.10.10 covers this clay-based refractory constructional good.
Duty Rate — Canada → 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
• Test for <3.2 cm thickness if tile-like to avoid 'tiles' exclusion in refractory headings per US notes
• Provide thermal conductivity data (<0.5 W/mK typical) to differentiate from dense structural bricks