High-Alumina Refractory Firebrick from Canada
A refractory brick containing over 50% alumina (Al2O3), fired after shaping for high-temperature resistance in furnaces and kilns. Classified under HTS 6902.20.10.20 as 'other' bricks made from alumina-silica mixtures, designed for constructional use in industrial heating equipment. Meets Chapter 69 requirements for fired ceramic goods excluding those in headings 6901-6903.
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
• Verify chemical composition certificate showing >50% Al2O3 or SiO2 to confirm classification under 6902.20
• Provide firing temperature documentation (>800°C) to distinguish from non-fired ceramic articles excluded from Chapter 69
• Avoid common pitfalls like importing unshaped mixes, which fall under Chapter 28 chemicals rather than finished refractory goods