How Refractory Brick Is Made | Hunker
A standard refractory brick is 9 inches by 4.5 inches by 2.5 inches. Another common size is 9 inches by 4.5 inches by 3 inches. There are exceptions to that, and there are sizes made for edges and sides. Firebricks are typically made by pressing or extruding the clay into the desired shape.
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