Color:

Light Grey

 Shape:

Ball

 Typical Technical Composition

Min. %

Max. %

Usual %

 SiO2

70

77

74.9

 Al2O3

17

19

18

 Fe2O3

******

1.0

0.9

 TiO2

******

0.5

0.46

 CaO

******

0.5

0.42

 MgO

******

0.5

0.38

 Na2O

******

2

1.12

 K2O

******

3.5

3.28

 Al2O3 + SiO2

90

94

93

 Physical properties

 Index

Value

Value

 Leachable Iron

≤ 0.1%

******

 Apparent Porosity by Weight, dia. ≥ 10mm

≤ 0.4%

******

 Apparent Porosity by Weight, dia. = 6mm

≤ 1.0%

******

 Apparent Porosity by Weight, dia. = 3mm

≤ 3.0%

******

 Moh's Hardness Scale

>6.5

******

 Water Absorption

<0.5wt.%

******

 Acid Resistance

>99.8%

******

 Alkaline Resistance

>85%

******

 Thermal Conductivity

0.9-1.0 w/m2.k

******

Thermal Expansion @ 500℃

0.20%

******

Specific Heat

628-837 j/kg

******

Thermal Shock Stability, 500 ℃ then water cooling

10 times

******

Max. Operating Temperature

1050℃

1922

Specific Density

2300 kg/m3

144 lb/ft3

Bulk Density (Packing Density)

1350 kg/m3

84 lb/ft3

Size /

Crush Strength

Nominal Size

(lbs)

(kg)

(N/pc)

mm

Inch

min.

min.

min.

3

1/8

77

35

343

6

1/4

176

80

784

10

3/8

234

106

1039

13

1/2

572

260

2548

16

5/8

726

330

3234

19

3/4

1672

760

7448

25

1

1870

850

8330

38

1.5

2090

950

9310

50

2

3476

1580

15484

Typical Application

a)Widely used support media in the world because of their excellent consistence and reliability.                                                                                                              

b)Manufactured from very high quality chemical-porcelain clay materials, which has quite excellent stability, high mechanical strength and resistance to thermal shock, This makes them all ideal choice for support of

all types of catalyst.

Warranty:

a) By National Standard HG/T 3683.1-2000
       b) Offer lifetime consultation on problems occurred