High-Alumina Burner Block from Canada
Precision-shaped burner port blocks with >60% Al2O3, fired for gas/oil burner installations in reheating furnaces. Refractory constructional goods resisting flame impingement. HTS 6902.20.50.10 for alumina burner refractories.
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
• Detail port geometries in invoices to justify complex refractory classification
• Exclude from Chapter 94 if not furniture/lighting fittings per notes
• Sample testing for water absorption if mixed cast/jiggered production