Refractory

 
OTHER IMPORTANT BASIC REFRACORY BRICKS

MAGNESITE BRICK

  With good slag resistance, high refractoriness, its physical property is better, used in open-hearth furnace, oxygen converters, electric arc furnace, torpedo, and the basis zone of non-ferrous metal furnaces. The high-quality magnesite brick is also suitable to the special zones of hot-work equipments in the alkaline medium environment.

 

                Index
Item               

Magnesia brick

High quality magnesia brick

MZ-91

MZ-89

MZ-87

LMZ-95

LMZ-93

MgO % ¡Ý

91

89

87

94.5

93

CaO % ¡Ü

3

3

3

2.0

2.0

SiO2 % ¡Ü

 

 

 

2.5

3.5

Refractoriness under ¡æ¡Ý

1550

1540

1520

1650

1620

A.P. % ¡Ü

18

20

20

18

17

C.C.S (Mpa) ¡Ý

58.8

49

39.2

50

65

Linear change after reheating %(1650x2h)

0-0.5

0-0.6

0-0.6

0-0.4

 


MAGNESIA-ALUMINA BRICK

  The Magnesia-Alumina brick has higher temperature strength, good thermal shock stability, and strong resistance to basic slag.

      Index

Item

Magnesia-alumina brick for open hearth furnaces roof

 MI-80A

ML-80B

MgO % ¡Ý

80

80

Al2O3 %

5-10

5-10

SiO2 % ¡Ý

 

 

Refractoriness under ¡æ¡Ý

1600

1580

A.P. % ¡Ü

18

20

C.C.S (Mpa) ¡Ý

39.2

39.4




   

 

MAGNESIA-CHROME BRICK

  The product is a basic refractory with the advantages of high temperature constructural strength, excellent thermal stability, high refractoriness, and strong resistance to basic material.
  Magnesia-chrome brick is extensively appreciated in non-ferrous furnace,electric arc furnace, open hearth furnace, converter, torpedo, vacuum refining furnace, burning zone of cement rotary kiln, recuperator of glass kiln.
 

          Item

   Index      

MgO%
¡Ý

Cr2O3
¡Ý

SiO2%
¡Ý

Apparent porosity  
¡Ü

Refractoriess under
 ¡æ¡Ý

Cold rushing
Strength ¡Ý

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

52

18

2.5

18

1700

30

LQMGe-20

50

20

2.5

18

1700

30

Fused rebounded magnesia chrome bricks

LDMGe-12A

60

12

2.5

16

1700

35

LDMGe-12B

60

12

3.5

 16

1700

35

LDMGe-14

60

12

2.5

16

1700

40

LDMGe-16A

55

16

2.5

16

1700

35

LDMGe-16B

55

16

3.5

17

1700

35

LDMGe-18

55

18

2.5

16

1700

35

LDMGe-20

50

20

2.5 

 

 

Fused rebounded magnesia

LDM-97

97

 

1.5

18

1700

45

LDM-95

95

 

2.0

18

1700

45

 MAGNESIA-Dolomite-Carbon Bricks

    Item
Index
Al2O3
(%)
MgO
(%)¡Ý
C
(%)
A.P.
(%)
B.D.
(g/cm3)
C.C.S.
(Mpa)
Refrctoriness under load ¡Ý
LMGT68 8-12 68 8-13 4 ¡¡ 25 1700