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Light Heat Insulation Refractory Brick And Supporting Mastic

Wih WH and WA series light insulation bricks use ASTM standards, and generally refractory brick comparisons, light weight, evenly distributed with tiny closing air holes, high porosity.
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Product description:    

WH and WA series lightweight insulating refractory bricks adopt ASTM standards. Compared with ordinary refractory bricks, they are light in weight, evenly distributed with small closed pores inside, and have high porosity. Therefore, they have less heat loss and more energy saving; At the same time, the heat storage is smaller, so the heating and cooling are faster, which is suitable for rapid periodic use. This series of products are applicable to the temperature range of 900℃~1700℃.

WH B and C series light heat insulation refractory bricks adopt JIS Japanese industrial standard. The product has the excellent characteristics of light weight, low iron content, low heavy burning shrinkage and resistance to atmospheric erosion. This series of products are applicable to the temperature range of 900℃~1350℃.


Product features:

◇ Low thermal conductivity, good heat insulation

◇ High strength, good thermal shock resistance

◇ Low heat capacity, fast temperature rise and fall

◇ High dimensional accuracy

◇ Low impurity content, good performance in reducing atmosphere

◇ It can be processed into a special shape to reduce the number of bricks and joints


Typical application:

◇ Various industrial furnace hot surface refractory materials and backing insulation layer

◇ Heating device, annealing furnace, soaking furnace

◇ Melting furnace, firing kiln, flue

◇ Reducing atmosphere furnace

◇ Gas generator and pipeline, refining device


Performance Index:

Product Code

WH-23

WH-23

WH-26

WH-28

WH-30

WH-32

WA-96

WA-98

Classification temperature (° C)

1260

1260

1400

1500

1550

1600

1650

1700

The normal temperature performance (26 ° C, relative humidity 50%)

Bulk density (kg / m3)

550

800

800

900

1000

1100

1350

1500

Flexural strength (ASTM C93, MPA)

0.9

1.2

1.3

1.6

1.8

2.1

3.4

3.8

Cold pressure resistance (ASTM C93, MPA)

1.2

1.8

1.8

2.5

2.8

3.0

8.6

9.4

High temperature performance

Thermally conductivity kcal / MH ° C (W / mK), (ASTM C-182 in the following average temperature)

600 ° C

0.16

0.28

0.29

0.34

0.41

0.51



800 ° C

0.19

0.30

0.32

0.36

0.42

0.53



1000 ° C

0.21

0.33

0.35

0.38

0.43

0.55

0.64

0.72

1200 ° C



0.37

0.40

0.45

0.58

0.67

0.76

Reburn line changes

(JIS R2613,%) (° C × 8h)

-0.3

(1300)

-0.4

(1400)

-0.4

(1400)

-0.6

(1500)

-0.6

(1550)

-0.6

(1600)

-0.4

(1650)

-0.3

(1700)

Reversible linear thermal expansion (maximum)

(JIS R2617, ° C)

0.45

(1000)

0.45

(1000)

0.45

(1000)

0.47

(1000)

0.47

(1000)

0.48

(1000)

0.51

(1000)

0.54

(1000)

Chemical composition (%)

AI2O3

40

40

54

62

74

80

96

98

FE2O3

1.2

1.2

0.9

0.8

0.7

0.5

0.4

0.4

Match cement

WM1300

1.2

WM1400

WM1400

WM1500

WM1500

WM1700

WM1700




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