Andalusite Refractory Brick from Germany
Andalusite refractory bricks are fired from clay-andalusite mixes for superior thermal shock resistance in coke ovens and reheat furnaces. They maintain volume stability at high temperatures. This fits 'other' refractory ceramic bricks under HTS 6902.90.50.20.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Include ASTM C373 water absorption tests (<3% typical for refractories) to affirm fired status
• Document raw material sourcing excluding siliceous fossil meals for accurate hierarchy