Brand

HZ-135

HZ-140

HZ-145

HZ-150

Al 2 O 3 , %

≥65

≥65

≥65

≥75

Fe 2 O 3 , %

≤1.5

≤1.5

≤1.5

≤1.0

Apparent Porosity , %

≤20(22)

≤20(22)

≤20(22)

≤19(20)

Bulk Density , g/cm 3

≥2.55

≥2.55

≥2.60

≥2.65

Cold Crushing Strength , MPa

≥60(50)

≥60(50)

≥70(60)

≥80(60)

0.2MPa Refractoriness Under Load , ℃

≥1600

≥1600

≥1600

≥1650

Refractoriness , ℃

≥1790

≥1790

≥1790

≥1790

Creeping Rate

(0.2MPa,20-50h),%

1350 ℃

≤0.2

1400 ℃

≤0.2

1450 ℃

≤0.2

1500 ℃

≤0.2