Sillimanite Brick
Cast Big Sillimanite Block
Apparent Porosity (%) ≤18
Bulk Density (g/cm3) ≥2.50
Cold Crushing Strength (Mpa) ≥60
0.2Mpa Refractoriness Under Load T0.6 ℃ ≥1600
PRODUCT DESCRIPTION
Introduction:
Cast big sillimanite brick is mainly suitable for the production of special-shaped products. The blocks are formed by slip casting. The raw materials are mixed into a paste and injected into the plaster mold, which is manually made, drying, and firing.
Features:
It has the characteristics of high refractoriness, high thermal shock stability, low thermal expansion rate, corrosion resistance of metallurgical slag and various glass liquids and good high temperature wear resistance. The refractoriness is 1770~1830℃, and the refractoriness under load is 1500~1650℃.
Key Material Properties
l Refractoriness: Endures extreme temperatures ranging from 1770°C to 1830°C.
l Alumina Content (Al₂O₃): Typically 60% to 65% or higher.
l Load Softening Point: Begins softening between 1500°C and 1650°C.
l Volume Stability: Converts partially to mullite and free silica under heat, minimizing creep and cracking
Applications:
It’s mainly used as channel bricks, forehearth bricks, rotating pipes, fire-stop slag bricks, damper bricks, front arch bricks, rear arch bricks, burner blocks, beams, and cover bricks. In the float glass industry, it is mainly used in the tin bath roof tiles of the float glass production line.
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