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High Alumina Refractory Bricks for Blast Furnace
High Alumina Refractory Bricks for Blast Furnace

High Alumina Refractory Bricks 1 With high refractoriness. 2 mechanical behavior Under high temperature. Specifications 

1. AL2O3:48%-85%. 2. High refractoriness. 3. Resistant acid-base erosive good.

High alumina brick, High alumina refractory brick,refractory high alumina brick

Features and advantages:

1. High refractoriness.

2. Good spalling resistance and wear resistance.

3. Good corrosion resistance.

4. Good thermal shock resistance.

5. High mechanical strength.

6. High-temperature creep rate is low.

Physical and chemical index:

Item

Index

ZM-48

ZM-55

ZM-65

ZM-75

ZM-80

ZM-85

 AL2O3  %  (≥)

48

55

65

75

80

85

Refractoriness °C (≥)

1750

1770

1790

1790

1820

1850

Refractoriness under load, 0.2MPa, °C  (≥)

1420

1450

1500

1520

1530

1550

Permanent linear Change  % 

1500°C ,2h

0.1-0.4

1450°C ,2h

0.1-0.4

Apparent porosity  % (≤)

22

22

23

23

22

23

Cold crushing strength  Mpa  (≥)

35

40

45

50

55

60

Application:

High alumina brick is mainly used for Widely used in blast furnaces, Hot Blast Stove,Steel ladle lining, Reheating furnace, Cement kiln, Tunnel kiln,boiler, coke oven, carbon furnace,glass kiln , Steel smelting furnace and various kiln lining and thermotechnical equipment, etc

High Alumina Refractory Bricks for Blast Furnace

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