Common

Standard

Pure

High Aluminium

Zirconium

Classification temperature(°C) 

1100

1260

1260

1360

1430

Work temperature(°C) 

 <1000

1050

1100

1200

1350

Color

White

Pure white

Pure white

Pure white

Pure white

Builk density (kg/m3) 

96128

96128

96128

128160

128160

Permanent linear shrinkage(%)(after24 hours,density 128kg/m3) 

 -4(1000°C)

 -3(1000°C)

 -3(1100°C)

 -3(1250°C)

-3(1350°C)

Thermal conductivity (w/m.k) density 128kg/m3)

0.09

(400°C)0.176

(800°C)

0.09

(400°C)0.176

(800°C)

0.09

(400°C)0.176

(800°C)0.22

(1000°C)

0.132

(600°C)0.22

(1000°C)

0.76(600°C)0.22(1000°C)

Tensile strength (Mpa) density128kg/m3)

0.08-0.12

0.08-0.12

0.08-0.12

0.08-0.12

0.08-0.12

Chemical

Composition 

(%

 AL2O3

44

46

47--49

52-55

39-40

 AL203+SIO2

96

97

99

99

-

 AL2O3+SIO2+Zro2

-

-

-

-

99

 Zro2

-

-

-

-

15-17

 Fe2O3

<1.2

<1.0

0.2

0.2

0.2

 Na2O+K2O

≤0.5

≤0.5

0.2

0.2

0.2

Size (mm)

Common 7200*610*10-50,others up to buyer