Silica-Alumina Anchor Brick from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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