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Alumina Carbon Brick

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Specifications

SK38 high alumina bricks:
1. Low price.
2. Pefect Performance
3. Great bulk density

4. Low iron content

1. SK38 High Alumina Brick

High Alumina Brick : the temperature of refractoriness under load is normally above 1420~1550°C , which is higher than the fireclay brick and it increases along with the AL2O3 content enhances.

For high alumina brick , the thermal Shock resistance is mainly decided by chemical contents and its mineral microstructure but its thermal shock resistant is worse than the fireclay brick. High alumina brick have very good ability of anti-acidity, anti-metal fluid corrode and anti-oxidation.

High Alumina Brick is used normally in industry furnaces such as Blast furnace, hot-blast furnace and EAF etc.

2. Specification for SK38 high alullina brick

Item

GLZ-75

GLZ-65

GLZ-55

GLZ-48

Al2O3 ,%≥

75

65

55

48

Refractoriness, °C≤

1790

1770

1750

0.2Mpa refractoriness under load, °C≤

1520

1500

1470

1420

Reheating linear change, %

1500°C,2h

+0.1
-0.4

-

1450°C,2h

-

+0.1
-0.4

Apparent porosity, %≤

23

22

Compress strength, MPa≥

53.9

49.0

44.1

39.2

3. Packing of SK38 High Alumina Brick

Bricks are packed on wooden pallet and then polyethylene film is placed over it, finally the package is tied up with steel strips.

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