Fireclay Refractory Brick from Canada
Fireclay refractory bricks from high-alumina fireclay provide economical lining for boiler walls and ladles, with good abrasion resistance. Properly fired after room-temperature shaping per Chapter 69 requirements. Classed in HTS 6902.90.10.20 as other refractory bricks.
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
• Conduct water absorption tests per ASTM C373; >3% may shift to earthenware if not proven refractory
• Include end-user letters from steel mills or foundries to affirm industrial refractory application
• Watch for origin marking; 'Made in China' fireclay bricks often face special duties—check USTR lists