Item:

Common

Standard

High pure

High alumina

Zirconium

Classification tempC

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)

260
320

260
320

260
320

260
320

260
320

Permanent linear shrinkage(%)

(After 24 hours,density 320kg/m3)

4
(1000^oC)

3
(1000^oC)

3
(1100^oC)

3
(1250^oC)

-3
(1350^oC)

Thermal conductivity (w/m.k)

(density 285kg/m3)

0.085(400^oC)

0.132(800^oC)

0.18(1000^oC)

0.085(400^oC)

0.132(800^oC)

0.18(1000^oC)

0.085(400^oC)

0.132(800^oC)

0.18(1000^oC)

0.085(400^oC)

0.132(800^oC)

0.18(1000^oC)

0.085(400^oC)

0.132(800^oC)

0.18(1000^oC)

Tensile strength (MPa)
(Thermal shrinkage 10%)

0.5

0.5

0.5

0.5

0.5

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

600×400×10-50, 900×600×20-50 or according to buyers requirement