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Mullite Insulation Brick
Description

Description of Mullite Insulation Brick:


With high refractoriness, mullite insulation bricks can be directly exposed to flames. They have the characteristics of light weight, high strength, low thermal conductivity, good thermal shock resistance and significant energy-saving effects.

Technique Data

Technique Data of Mullite Insulation Brick:

Item

Specification

JM23

JM25

JM26

JM27

Al2O3  %

40

50

55

60

Fe2O3  %

1.0

1.0

0.9

0.8

Bulk Density, g/cm3

0.55

0.80

0.85

0.9

CCS, MPa

1.0

1.5

2.0

2.5

PLC, %

1230℃×12h

1350℃×12h

1400℃×12h

1450℃×12h

-1.5~0.5

Thermal Conductivity, W/(m·K)

200±25

0.18

0.26

0.28

0.32

350±25

0.20

0.28

0.30

0.32

600±25

0.22

0.30

0.33

0.36

0.05MPa RUL, T0.5 

1080

1200

1250

1300


Item

Specification

JM28

JM30

JM32

Al2O3  %

65

70

77

Fe2O3  %

0.7

0.6

0.5

Bulk Density, g/cm3

0.95

1.05

1.35

CCS, MPa

2.5

3.0

3.5

PLC, %

1510℃×12h

1620℃×12h

1730℃×12h

-1.5~0.5

Thermal Conductivity, W/(m·K)

200±25

0.35

0.42

0.56

350±25

0.37

0.44

0.60

600±25

0.39

0.46

0.64

0.05MPa RUL, T0.5 

1360

1470

1570


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