Silimanite Refractory Brick from Japan
Silimanite refractory bricks feature sillimanite minerals for high refractoriness in electric arc furnace roofs. Dense fired structure resists molten metal penetration. HTS 6902.90.10.20 for other refractory brick types.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Certify mineral content via petrographic analysis to distinguish from high-alumina types
• Ship in palletized configurations with dunnage to prevent breakage, aiding customs inspection
• For pre-assembled arch shapes, consider if 'articles' under 6902.90.90 applies over bricks