Silica-Alumina Anchor Brick from Canada
Specialty anchor bricks with >50% SiO2 and Al2O3 mixture, fired for securing fiber modules in industrial furnaces. Designed for high-temperature suspension systems. Classified in 6902.20.50 as other refractory constructional bricks.
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
• Provide engineering drawings showing anchor design for refractory intent
• Test for <3% water absorption per ASTM C373 to confirm fired status
• Separate from fiber modules to avoid set classification issues