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KERATECH s.r.o. » Refractory materials » Molded materials » Lightweight mullite and perlite brick

Lightweight mulite and perlite bricks

 

The company offers a wide assortment of high shaped products.

 

Specifications:

KERABRICK-23A

KERABRICK-23B

KERABRICK-26A

KERABRICK-26B

KERABRICK-28A

Classification temperature

şC

1300

1300

1400

1400

1500

Density

kg/m3

550

800

800

800

800

Сhanges during heating

%

1260◦Cx3ч ≤0,6

1300◦Cx3ч ≤0,5

1370◦Cx3ч ≤0,6

1400◦Cx3ч ≤0,6

1470◦Cx3ч ≤0,6

Durability

MPa

1,1

2,0

2,4

2,4

2,8

Expansion during heating

%

0,5

0,5

 

0,5

0,5

Thermal Conductivity

W/(m.k)

0,16

0,24

0,25

0,25

0,25

Chem. analysis 

 

 

Al2O3

%

≥38

≥42

≥50

≥54

≥62

Fe2O3

%

≤1,0

≤1,0

≤0,8

≤0,8

≤0,7

Specifications:

 

KERABRICK-28B

KERABRICK-30A

KERABRICK-30B

KERABRICK-32A

KERABRICK-32B

Classification temperature

şC

1500

1550

1550

1600

1600

Density

kg/m3

900

900

1000

1000

1100

Сhanges during heating

%

1500◦Cx3ч ≤0,8

1530◦Cx3ч ≤0,8

1550◦Cx3ч ≤0,8

1570◦Cx3ч ≤0,8

1600◦Cx3ч ≤0,8

Durability

MPa

3,3

3,5

4,0

4,5

4,8

Expansion during heating

%

0,55

0,58

0,58

0,60

0,60

Thermal Conductivity

W/(m.k)

0,33

0,35

0,39

0,4

0,43

Chem. analysis 

 

 

Al2O3

%

≥65

≥72

≥73

≥79

≥79

Fe2O3

%

≤0,7

≤0,6

≤0,6

≤0,5

≤0,5

Product Line

 

INSULATING BRICKS

Brand Name

 

KOLAS 50

KOLAS 70

KOLAS 90

KOLAS 110

KOLAS 130

KOLAS 150

KOLAS 120 K

Classification according to EN

EN 1092-2

85-0,50L

95-0,65L

100-0,90

110-1,10

130-1,30

140-1,50

160-1,20

Base Material

 

Perlite

Spherical Corundum

Al₂O₃ Content (%) Содержание

Min.

-

-

28

28

30

30

 

Ř

18

22

30

30

33

34

84

Fe₂O₃ Content (%)

Max.

-

-

3

3

3

3

-

Ř

0,8

2

2,8

2,8

2,8

2,8

0,6

Bulk Density (kg. m⁻ł)

 

450-600

600-800

800-1000

1000-1200

1200-1400

1400-1600

1100-1300

Ř

500

650

900

1100

1300

1500

1200

CCS (MPa)

Min.

1

1,2

2

2,5

3

5

6

Ř

-

-

-

4

7

9

9

True porosity (%)

Ř

80

75

67

60

53

48

70

Refractoriness Under Load t₀ˏ₆ (°C)

Ř

1160

1170

1180

1200

1380

1400

1680

Refractoriness PCE

Ř

148

150

160

160

162

164

180

PLC (%)

T/time

850/12

950/12

1000/12

1100/12

1300/12

1400/12

1600/12

Ř

-0,3

-1,5

-1,7

-0,1

-1

-1,8

1,8

Servis Temperature (°C)

Max.

900

950

1000

1100

1300

1400

1600

Thermal Conductivity (W.m⁻ą.K⁻ą)

200°C

0,19

0,23

0,28

0,38

0,72

0,86

1,12

400°C

0,2

0,25

0,3

0,42

0,74

0,89

1,02

600°C

0,23

0,28

0,34

0,45

0,8

1

0,97

800°C

0,28

0,34

0,4

0,55

0,86

1,1

0,99

1000°C

-

-

0,5

0,65

1,06

1,19

1,07

1100°C

-

-

0,56

0,77

1,19

1,29

-

1200°C

-

-

0,64

-

-

-

1,17

Insulating Bricks – KOLAS are used as insulating linings of thermal aggregates in metallurgy, power engineering (boilers’ insulating), industry of building materials (in shaft and rotary furnaces for firing and cement, tunnel furnaces for firing ceramics)

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