Chemical Composition

Alumina Ceramic

Mullite

 porous

Cordierite

dense

Cordierite porous

Quartz

Porcelain

SiO₂

41-44

26-29

59-59

48-52

65-68

Al₂O₃

50-53

67-70

24-27

34-37

25-30

MgO

≤0.4

≤0.4

7-8

8-9

≤0.5

Alkali

≤4

≤1.3

≤3

≤1.3

≤5

Size

150×150×300mm

150×150×300mm

150×150×300mm

150×150×300mm

Channels

25 x 25

40 x 40

50 x 50

60 x 60

Chanel width

4.9mm

3.0mm

2.4mm

2.0mm

Inner walls

1.0mm

0.7mm

0.6mm

0.45mm

Spec area

540m²/m³

825m²/m³

1050m²/m³

1310m²/m³

Void

67%

64%

63%

64%

Materials

Units

Alumina ceramic

Mullite

porous

Cordierite

dense

Cordierite porous

Quartz

porcelain

Density

g/cm3

2.7

2.1

2.5

1.9

2.3-2.5

Bulk Density

Kg/m3

965

832

871

778

889

Thermal Expansion Coefficient

10-6 /°C

6,2

3,5

3,4

6,2

4,8

Specific heat Capacity

J/KgK

992

998

942

1016

897

Thermal Conductivity

W/mK

2.79

2.42

1.89

1.63

1.37

Resistance to Fluctuated Temp

Max K

500

550

500

600

500

Softening Temperature

°C

1500

1580

1320

1400

1380

Max. temperature

°C

1400

1480

1200

1300

1280

Average Thermal Capacity

KWh/m3K

0.266

0.231

0.228

0.219

0.222

Porosity Ratio

%

0.8

26.0

0.4

15.0

0.6

Acid Resistance

%

0.2

2.5

5.0

16.7

0.3