China Wholesale Ceramic Honeycomb Block Factories Pricelist – RTO Heat Exchange Honeycomb Ceramic – Zhongtai

Chemical & Physical index

Cordierite

Dense Cordierite

Cordierite- mullite

Mullite

Corundum-mullite

Chemical Composition (%)

SiO2

45~55

45~55

35~45

25~38

20~32

AI2O3

30~38

33~43

40~50

50~65

65~73

MgO

10~15

5~13

3~13

-

-

K2O+Na2O

<1.0

<1.0

<1.0

<1.0

<1.0

Fe2O3

<1.5

<1.5

<1.5

<1.5

<1.5

Thermal Expansion Coefficient 10-6/K-1

<2

<4

<4

<5

<7

Specific Heat J/kg·K

830~900

850~950

850~1000

900~1050

900~1100

Working Temperature ℃

<1300

<1300

<1350

<1450

<1500

   PS: we also can make products at your request and actual operating condition.

Size

(mm)

Hole Qty

(N×N)

Hole Density

(cpsi)

Hole Diameter

(mm)

Wall thickness

(mm)

Porosity

(%)

150×150×300

5×5

0.7

27

2.4

81

150×150×300

13×13

4.8

9.9

1.5

74

150×150×300

20×20

11

6.0

1.4

64

150×150×300

25×25

18

4.9

1.00

67

150×150×300

40×40

46

3.0

0.73

64

150×150×300

43×43

53

2.79

0.67

64

150×150×300

50×50

72

2.4

0.60

61

150×150×300

59×59

100

2.1

0.43

68