Insulation Firebrick,1260C-1425C-1538C-1550C Insulation Firebrick

 Insulating Firebrick 

Insulating Firebrick:

Insulating Firebrick is an aluminium silicate type of insulating firebrick with light weight has high mini-porosity arranged in average, keep furnace wall low radiation and depress the charges of fuels. Light weight means the lowest thermal storage, its quicker to heat and cool, and permit rapid cycle work. They are used for 9001650, you can choose the most economical products according to service temperature. Light Weight Insulating Firebrick is in accordance with ASTM Standard.

Characteristic:

Application:

  Low thermal conductivity:

Gives good thermal insulation, enabling the use of thin-walled constructions.

  Hot face lining and Back up insulation

 Low heat storage:

Due their light weight, coupled with low thermal conductivity, the TJM bricks absorb minimal heat, giving significant energy savings in cyclicly operated kilns.

 Roller kiln, tunnel kiln, shuttle kiln, top hat kiln of ceramics industry, various resistor furnaces

  Purity:

The low iron and alkali flux content confers good refractoriness and the high alumina content contributes to their stability in reducing atmospheres.

  Reducing atmosphere furnace

  High cold crushing strength and low thermal conductivity properties

 gas producer of chemical industry

  Accurate dimensions:

Enable the bricks to be laid more efficiently, with thin, uniform joints, allowing the construction of strong and stable structures.

  Lining of high-temperature kilns of industrial ceramics, industrial furnaces under 1650 of petrochemical, machinery industries

 Special dimension and shapes can be produced

  Hot-air furnace, heating furnace, soaking furnace, heat treatment furnace of metallurgy industry

Physicochemical Index

Product

TK-23

B5

TK-26

TK-28

TK-30

Classification temperature (ºC)

1260

1300

1425

1538

1550

Bulk density(Kg/m³)

800

850

800

900

1000

Reheat shrinkage

% JIS R2613 ^oC*8Hour

0.20   (1230)

0.2

(1300)

0.26   (1400)

0.34   (1500)

0.36  (1550)

Cold crushing strength (ASTM C93, Mpa)

1.0

2.5

2.0

3.0

4.0

Modulus of rupture   (ASTM C93, Mpa)

0.7

1.7

1.5

2.0

2.5

Thermal expansion at 1000° C (%)

 (JIS R2617, ^oC)

0.46  

0.44

0.44  

0.48  

0.47

Thermal conductivity Kcal/mh^o C (W/mK) ,ASTM C201,

Mean 400 ^oC

0.20

0.22

0.26

0.29

0.31

Mean 600 ^oC

0.24

0.27

0.29

0.32

0.34

Mean 800 ^oC

0.28

0.30

0.32

0.35

0.38

Chemical analysis

Al₂O₃

38

42.1

55

65

70

SiO₂

60

50.2

43

33

28

Fe₃O₂

1.0

1.6

0.8

0.7

0.6

CaO

0.4

0.2

Available sizemm

230(L)*114(W)*65 / 75(T), (10pcs /carton)