RS-80 High Alumina Refractory Brick High Temperature Resistance Furnace Brick Lining
Product Description of High Temperature Resistance High Alumina Refractory Brick For Furnace Lining
High alumina brick is a kind of alumina-silicate refractory material with content of alumina oxide more than 48%. It is calcined and formed by the raw material of banxite or the material with high content of AL2O3. High thermal stability, the refractoriness is more than 1770℃. Good slag resistance, used for the liner of masonry steel-making electric stove, glass furnace and cement revolver.
Features of High Temperature Resistance High Alumina Refractory Brick For Furnace Lining
Product Application of High Temperature Fire Resistant High Alumina Refractory Brick
As a basic material in the field of high-temperature technology, high alumina bricks are widely used in cement, glass building materials, steel smelting, petrochemical and other industries. High temperature industrial furnaces for high alumina bricks include blast furnace, hot blast furnace, electric furnace, blast furnace, reverberatory furnace and rotary kiln lining. In addition, high alumina bricks can also be processed into open hearth regenerative grid bricks, socket bricks for pouring system, nozzle bricks, etc. according to the requirements of industrial furnaces.
Product Specification of High Alumina Refractory Brick
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Item
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Properties
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|||||
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RS-80
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RS-75
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RS-65
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RS-55
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RS-48
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Al2O3 (%)
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80
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≥75
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≥65
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≥55
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≥48
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|
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Refractoriness (°C )
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≥1790
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≥1790
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≥1790
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≥1770
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≥1750
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|
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Bulk density (g/cm3)
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2.65
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2.5
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2.45
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2.4
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2.3
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|
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Softening temperature under load (°C )
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1530
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≥1520
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≥1500
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≥1470
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≥1420
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|
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Linear changes on reheating (%)
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1500°CX2H
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0.1
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0.1
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0.1
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0.1
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|
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-0.4
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-0.4
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-0.4
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-0.4
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1450°CX2H
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|
|
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0.1
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|
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-0.4
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Apparent porosity (%)
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22
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≤23
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≤23
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≤22
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≤22
|
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Cold crushing strength (Mpa)
|
55
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≥50
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≥45
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≥40
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≥35
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