Silimanite Refractory Brick from Japan

Sillimanite refractory bricks are made from sillimanite minerals, fired to create a dense structure that withstands very high temperatures and resists molten metal penetration. They are primarily used in electric arc furnace roofs and other high-stress metallurgical applications. This product is classified under tariff item 6902.90.00 as a refractory ceramic constructional good other than those of siliceous fossil meals.