Fireclay Brick

Fireclay brick is made from clinker clay by mixing, forming, drying, sintering and matching characterized by good resistance to corrosion and abrasion, good thermal shock resistance, good spelling resistance, high mechanical strength, good volume stability under high temperature.

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Product Details

Fireclay brick is made from clinker clay by mixing, forming, drying, sintering and matching characterized by good resistance to corrosion and abrasion, good thermal shock resistance, good spelling resistance, high mechanical strength, good volume stability under high temperature.


Item

Clay Brick Index

N-1

N-2a

N-2b

N-3a

N-3b

N-4

N-5

N-6

Refractoriness ℃

1750

1730

1730

1710

1710

1690

1670

1580

Refractoriness under load ℃

1400

1350

1320

1300

 1300

 1300

Reheating Linear Change %

1400℃x 2h

+0.1
-0.4

+0.1
-0.5

+0.2
-0.5

 

 

 

 

 

1350℃x 2h

 

 

 

+0.2
-0.5

+0.2
-0.5

+0.2
-0.5

+0.2
-0.5

 

Apparent Porosity %

22

24

26

24

26

24

26

28

Cold Crushing Strength Mpa

30

25

20

20

15

20

15

15

Bulk Density g/cm3

2.0-2.2

Application

All industrial furnaces

 


Item

Lower Porosity  Clay Brick Index

DN-12

DN-15

Al2O3 %

45

42

Fe2O3 %

1.2

1.5

Refractoriness ℃

≥1790

≥1790

Bulk Density g/cm3

2.37

2.3

0.2 MPa℃ Refractoriness under Load

1500

1470

Reheating Linear Change %

1450℃X2h

+0.05
-0.1

-0.2
+0

Apparent Porosity %

12

15

Cold crushing strength Mpa

68

58




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