70% Alumina Refractory Brick from Canada
Standard 70% Al2O3 refractory brick fired for use in glass tank regenerator checkers and cement kilns. HTS 6902.20.10.20 covers 'other' bricks exceeding 50% alumina or silica, as constructional ceramic goods per Chapter 69 notes. High thermal shock resistance defines its refractory application.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Use ASTM C373 water absorption tests if absorption rate questioned, though primarily composition-driven for refractories
• Include manufacturer specs on firing process (>800°C) to comply with Chapter 69 firing requirement