High alumina brick, High alumina refractory brick, Refractory high alumina brick
Features
General use in heat containment unit from temperature 1,500-1,900 o C
Resistant to high temperature for steelmaking operations such as ladle applications, sidewall, roofs, burner blocks, anchor brick for reheating furnaces and many other areas.
Transition and cooling zones of rotary cement kilns, lime kilns,etc.
Lower sidewall and bottom of alumina refining, melting furnaces, etc.
Applications
1.Steel furnaces
2.Iron making furnaces
3.Glass kiln
4.Ceramic tunnel kiln
5.Cement kiln
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Item
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Properties
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LZ-80
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LZ-75
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LZ-65
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LZ-55
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LZ-48
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Al2O3 ,% |
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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Refractoriness °C |
≥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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Bulk density,g/cm3 |
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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Softening temperature under load |
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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Permanent linear change,% |
1500°CX2H
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+0.1
-0.4
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+0.1
-0.4
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+0.1
-0.4
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+0.1
-0.4
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1450°CX2H
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+0.1
-0.4
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Apparent porosity,% |
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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Application
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All industrial furnace |
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