Brands

MLJ-80

MLJ-75

Chemical composition,%

Al 2 O 3

≥65

≥75

MgO

≥26

8 ~ 15

Apparent porosity ,%

≤17

≤18

Cold Crushing Strength ,Mpa

≥40

≥40

0.2MPa Refractoriness Under Load ， ℃

≥1700

≥1650

Thermal shock resistance ,cycles(1000℃-water quench)

≥20

≥15