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产品名称:INSULATION BRICK JM
JM type Heat Insulating brick with light weight, has high mini-porosity arranged in average, keep furnace wall low radiation and depress the charges of fuels.

Light weight for Heat insulation brick means the lowest thermal storage, it's quicker to heat and cool, and permit rapid cycle work. They are used for 900C~1650C, you can choose the most economical products according to service temperature.

G.R.S. Heat Insulating brick is in accordance with ISO9001 Standard. 
 
1. Typical Application

1)  Lining of high-temperature kilns of industrial ceramics, industrial furnaces under 1650C of petrochemical, metallurgy and machinery industries
2) Lining of hot-surface of industrial furnaces as carbon furnace, cracking furnace, heating furnace for oil refining, roller kiln, tunnel kiln.
3) Back lining insulating layer of industrial furnace as glass tank kiln.
4) Atmosphere furnace.

Quality

JM-23

JM-26

JM-28

JM-30

JM-32

Classification temperature deg.c

1260

1460

1540

1650

1760

Bulk density g/cm3

0.6

0.8

0.9-1.0

1.0-1.5

1.5-1.7

Crushing strength Mpa

1.2

1.6

2.1

2.5

3.5

Modulus of rupture Mpa

0.9

1.4

1.6

2.1

2.1

Permanent linear change(CT-30deg.c*24h)%

0.5

0.4

0.5

0.9

0.9

Reversible thermal expansion at 1100deg.c

0.5

0.7

0.8

0.9

1.1

Thermal shock resistance(cycles)1100deg.c

Water cooling

30

30

30

30

30

Thermal conductivity

W/m.k

400deg.c

0.14

0.27

0.32

0.41

0.49

600deg.c

0.16

0.29

0.34

0.43

0.50

800deg.c

0.18

0.31

0.36

0.44

0.51

1000deg.c

0.20

0.33

0.38

0.45

0.53

1200deg.c

-

0.35

0.41

0.47

0.56

Chemical analysis(%)

Al2O3

37

58

67

73

77

Fe2O3

0.7

0.7

0.6

0.5

0.4

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