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refractory brick for sale JM28 grade Insulating Firebrick refractory Brick JC Brick

JM28 grade Insulating Firebrick refractory Brick JC Brick

Insulating firebricks gains typical advantages including low thermal conductivity,fine thermal shock resistance,low heat containment and low iron content,meanwhile,the outstanding mechanical flexibility,coupled with high insulating efficiency expands the extensive applications of IFB in a...

Products Details

Insulating firebricks gains typical advantages including low thermal conductivity,fine thermal shock resistance,low heat containment and low iron content,meanwhile,the outstanding mechanical flexibility,coupled with high insulating efficiency expands the extensive applications of IFB in a variety of industrial markets.
Our insulating firebrick is manufactured from high-grade refractory powder and materials in good purity.During the process of production,organic and multiple filling materials are injected according to the required proportion,the brick is compressed in vacuum and sintered under high temperature.

Features
1.Low bulk density, low thermal conductivity, good thermal insulation performance.
2.Refractory category allow direct contact of fire, suitable for various atmosphere.
3.Good integrity with furnace lining, long service life, easy operation, could be shaped freely.
Typical Applications
1.Furnaces of metallurgy industry, heat treatment furnace.
2.Furnaces of chemical industry and construction industry.
3.Furnace of incineration of garbage, recirculating fluidized bed furnace.
Technical data:

Description

Grade 23

Grade 26

Grade 28

Grade 30

Classification Temperature

1300C/2300F

1400C/2600F

1500C/2732F

1550C/2822F

Density(kg/m3)

600

800

900

1000

Cold Crushing Strength (MPa)

1.2

1.8

2.5

3.3

Modulus of Rupture(MPa)

1.0

1.7

2.3

3.1

Permanent Linear Change (%)x24hrs

≤0.6

≤0.6

≤0.8

≤0.9

Thermal Expansion  (%)1000C

0.5

0.52

0.52

0.53

Thermal Conductivity (W/m.k)

350C

0.18

0.25

0.33

0.38

400C

0.20

0.29

0.35

0.40

600C

0.24

0.32

0.37

0.42

Chemical Composition(%)

Al2O3

42

56

67

73

SiO2

55

41

30

24

Fe2O3

≤1

≤0.8

≤0.7

≤0.7

K2O+Na2O

1.1

1.7

1.7

1.7

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