itemindexbrand

LZMGe-8A 

LZMGe-8B 

LZMGe-8C 

LZMGe-8D 

DMC-9A 

DMC-9B 

Standard

 Typical 

Value

Standard

Typical 

Value 

Standard

Typical

 Value 

Standard

Typical 

Value 

Standard

Typical 

Value 

Standard

Typical

 Value 

 MgO,%

≥70

78.2 

≥70

77.4 

≥70

75.6 

≥70

     75.7 

≥70

74

≥70

72.7

 Cr2O3 ,%

≥8

9.52 

≥8

8.73 

≥8

9.02 

≥8

8.86 

≥9

10.9 

≥9

10.2

 SiO2 , %

≤1.5

1.13 

≤2.5

1.94 

≤3.0

2.19 

≤3.5

3.2

≤2.8

2.26 

≤3.0

2.72

apparent porosity, %

≤18

16

≤18

17

≤19

17

≤21

19

≤19

17

≤19

18

 0.2MPa refractoriness 

under load,

°C

≥1700

1760 

≥1700

1740 

≥1650

1720 

≥1650

1670 

≥1600

1730 

≥1580

1630

cold crushing strength  ,MPa

≥ 40

55

≥40

66

≥40

60

≥35

45

≥40

52

≥40

45

thermal expansion(1100°C,water cooling),times

*

10

*

10

*

8

*

5

≥4

6

≥4

5