Index

Item

Magnesia-alumina brick for open hearth furnaces roof

MI-80A

ML-80B

MgO % ≥

80

80

Al2O3 %

5-10

5-10

SiO2 % ≥

Refractoriness under ℃≥

1600

1580

A.P. % ≤

18

20

C.C.S (Mpa) ≥

39.2

39.4

          Item

   Index      

MgO%
≥

Cr₂O₃
≥

SiO₂%
≥

Apparent porosity  
≤

Refractoriess under
 ℃≥

Cold rushing
Strength ≥

Magnesia-chrome bricks

Mge -20

40

20

23

1550

24.5

Mge-16

45

16

23

1550

24.5

Mge-12

55

12

23

1550

24.5

Mge-8

60

8

24

1530

24.5

Externol plating unfired magnesia chrone bricks

LTMGe-12A

50

12

16

1500

34

LTMGe-12B

63

12

23

1500

25

LTMGe-16

45

16

16

1500

34

Direct-bonded magnesia chrome bricks

LZMGe-8A

70

8

1.5

18

1700

40

LZMGe-8B

8

2.5

18

1700

40

LZMGe-8C

8

3.0

19

1650

40

LZMGe-8D

8

4.0

21

1550

30

LZMGe-12A

65

12

1.5

18

1700

40

LZMGe-12B

12

2.5

18

1700

40

LZMGe-12C

12

3.0

18

1650

40

LZMGe-16A

16

1.5

18

1700

40

LZMGe-16B

16

2.5

18

1700

40

LZMGe-18

55

18

1.5

18

1700

40

LZMGe-18A

18

1.5

18

1700

40

LZMGe-18B

18

2.5

18

1700

40

DMC-12

60

12

3.2

19

1580

35

DMC-9A

70

9

3.0

19

1580

40

DMC-9B

70

9

2.8

19

1600

40

DMC-6

75

6

2.8

18

1600

40

DMC-4

80

4

2.5

18

1600

40

LZGeM-20

58

20

1.5

18

1700

35

LZGeM-26

45

26

21

1700

35

Semi-rebounded magnesia chrome bricks

LBMGe-16A

55

16

2.5

16

1700

35

LBMGe-16B

55

16

3.5

16

1690

35

LBMGe-18A

50

18

2.5

19

1700

50

LBMGe-20A

50

20

2.5

16

1700

35

LBMGe-20B

50

20

3.45

16

1690

35

Fully co-clinker rebounded magnesia chrome bricks

LQMGe-12

60

12

2.5

18

1700

30

LQMGe-18