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Curved Fire Brick SK32 SK36 SK38 SK40 Bulk High Alumina Brick Curved Brick
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US$ 0.1
≥500 Pieces
Quick Details
SiO2 Content (%):
Customizable
Al2O3 Content (%):
48%-85%
MgO Content (%):
Customized
CaO Content (%):
Customized
Product Details
High Alumina Bricks
High Alumina Brick Is a Kind Of Neutral Refractory With Alumina Content Above 48%. It Is Formed By Shaping And Calcining Bauxite Or Other Raw Materials With High Alumina Content. High Thermal Stability And Fire Resistance > 1770 ℃. We Bring Forth High Quality High Alumina Bricks, Which Is Manufactured To Meet The Requirements Of Neutral Refractoriness Where Safe Working Temperature
>
1300 ℃.
We Offer High Alumina Bricks In Different Specifications As Per Customer Requirements.
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Item/Grade
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Fire Clay Brick
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High Alumina Brick
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SK-30
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SK-32
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SK-34
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SK-35
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SK-36
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SK-37
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SK-38
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SK-40
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AL2O3% (≥)
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30
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35
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38
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45
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55
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65
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70
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82
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Fe2O3% (≤)
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2.5
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2.5
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2
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2
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2
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2
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2
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2
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Refractoriness(SK)
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30
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32
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34
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35
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36
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37
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38
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40
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Refractoriness Under Load, 0.2MPa, °C (≥)
|
1250
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1300
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1360
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1420
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1450
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1480
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1530
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1600
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Apparent Porosity (%)
|
22-26
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20-24
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20-22
|
18-20
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20-23
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20-23
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20-22
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18-20
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Bulk Density (g/cm³)
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1.9-2.0
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1.95-2.1
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2.1-2.2
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2.15-2.22
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2.25-2.4
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2.3-2.5
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2.4-2.6
|
2.5-2.7
|
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Cold Crushing Strength ,MPa (≥)
|
20
|
25
|
30
|
40
|
45
|
50
|
60
|
70
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High Alumina Refractory Brick Physical and Chemical Index
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Item
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PROPERTIES
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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 (%)
|
|
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 )
|
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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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Bulk density (g/cm3)
|
|
2.65
|
2.5
|
2.45
|
2.4
|
2.3
|
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Softening temperature under load (°C )
|
|
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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Reheating Linear changes Rate (%)
|
1500°CX2H
|
0.1
|
0.1
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0.1
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0.1
|
0.1
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1450°CX2H
|
-0.4
|
-0.4
|
-0.4
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-0.4
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-0.4
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Apparent Porosity (%)
|
|
22
|
≤23
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≤23
|
≤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
|
≥35
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Application
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Steel furnace, glass furnace, sodium silicate furnace, ceramic shuttle kiln, cement rotary kiln, blast furnace, electric furnace,blast furnace and reverberatory furnace.
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We also can make brick according to customers’ drawing and requirements.
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Features of High Alumina Bricks
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