Item:

Common

Standard

High pure

High alumina

Zirconium

Classification temp oC

1100

1260

1260

1360

1430

Working temp oC

< 1000

1050

1100

1200

1350

Color

white

Pure white

Pure white

Pure white

Pure white

Bulk density (kg/m3)

96128

96128

96128

128160

128160

Permanent linear shrinkage(%)

(After 24 hours,density 128kg/m3)

4(1000)

3(1000)

3(1100)

3(1250)

-3(1350

Thermal conductivity (w/m.k)

(density 128kg/m3)

0.09(400)0.16(800)

0.09(400)0.16(800)

0.09(400)0.16(800)

0.12(600)0.20(1000)

0.16(800)0.20(1000)

Tensile strength (MPa)(density128kg/m3)

0.080.12

0.080.12

0.080.12

0.080.12

0.080.12

Chemical composition (%)

AL2O3

44

46

47-49

52-55

39-40

AL2O3+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

7200×610×10-50 or according to buyers requirement