Item

JM23

JM26

JM28

JM30

AL2O3(%)

38-44

50-58

65-70

70-73

Fe2O3(%)

1.0

0.9

0.8

0.7

Classification Temperature ()

1350

1430

1540

1600

Bulk Density (g/cm3)

0.8-1

0.8-1

0.8-1

0.8-1

Reheating Linear Change (%)

  CT-30 X 8H

1250

-0.5

1400

-0.5

1500

-0.5

1550

-0.5

Cold Crushing Strength (Mpa)

3.0-4.5

3.0-4.5

3.0-4.5

3.0-4.5

Modulus of Rupture (Mpa)

1.5

1.7

1.8

2.0

Thermal conductivity400(W/m.k)

0.25

0.27

0.32

0.41

Thermal Expansion1000(%)

0.5

0.7

0.8

0.9