refractory

Chemical and Physical Properties

LQH-90

LQH 85

LQH-80

Spec

Typical

Spec

Typical

Spec

Typical

Chemical
Analysis (%)

Al2O3

90≤

91

85≤

86

80≤

82

Fe2O3

1.0≥

0.3

1.0≥

0.6

1.0≥

0.8

Refractoriness (SK)

40≤

40

40≤

40

39≤

39

Bulk Density

3.10≤

3.15

2.90≤

2.95

2.80≤

2.85

Apparent Porosity (%)

18≥

15

20≥

18

20≥

18

Cold Crushing Strength

700≤

900

600≤

800

600≤

800

(Kg/cm²)

Thermal Expansion (%)

-

0.70

-

0.68

-

0.65

at 1000°C

Permanent Linear Change (%)

-

0

-

0

-

0.2

at 1500°C × 2Hrs

Refractoriness under Load

-

1,700

-

1,700

-

1,670