Refractory Mullite insulating brick

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Mullite insulating brick, Low thermal conductivity, High thermal shock resistance, High compressive strength, Erosion resistance.

Description

Mullite insulating brick
Low thermal conductivity
High thermal shock resistance
High compressive strength
Erosion resistance

Item:

JM-23

JM-26

JM-28

JM-30

JM-32

Classification temperature oC

1260

1430

1540

1650

1760

Bulk density g/cm3

0.6

0.8

0.9

1.0

1.25

Modulus of rupture MPa

0.9

1.5

1.6

1.7

2.0

Cold crushing strength MPa

1.2

2.4

2.6

2.8

3.4

Permanent linear change  %,     

-0.1

-0.5

-0.8

-0.9

-0.9

1230oC×24

1400oC×24

1510oC×24

1620oC×24

1730oC×24

Thermal expansion coefficient

0.45

0.50

0.55

0.60

 

Thermal conductivity W/m.k

400.C

0.17

0.24

0.30

0.40

0.49

600.C

0.19

0.27

0.32

0.42

0.50

800.C

0.22

0.30

0.35

0.44

0.51

1000.C

0.25

0.32

0.38

0.45

0.53

1200.C

-

0.35

0.39