Chemical Corrosion Resistance High Alumina Brick High Temperature Refractory For Cement Kiln

Item

HA60

HA70

HA75

HA80

AL2O3(%)

≥60

≥70

≥75

≥75-80

SIO2(%)

32

22

20

≥18

Fe2O3(%)

≤1.8

≤1.8

≤1.8

≤1.8

Refractoriness °C

1790

1800

1825

≥1850

Bulk density,g/cm3

2.4

2.45-2.5

2.5

2.55-2.6

Softening temperature under load

≥1470

≥1520

≥1530

≥1550

Apparent porosity,%

22

21

21

20

Cold Crushing strength Mpa

≥45

≥50

≥54

≥60

Item

LAP75

LAP77

LAP85

AL2O3 %

≥75

≥77

≥80-85