Magnesia chrome bricks

Magnesia chrome bricks properties

High refractoriness and refractoriness under load.

Good resistance to the corrosion of glass liquid,  molten steel and slag.

Good thermal shock resistance and spalling resistance.

Good mechanical strength, low creep rate.

Good volume stability.

  Description

Magnesia chrome bricks are basic refractory bricks in which periclase and  magnesia chrome spinel are primary crystalline phases. The sintering temperature of magnesia chrome bricks is 1550~1600℃. RS company produces all grades of magnesia chrome bricks, including general application magnesia chrome bricks, direct bonded magnesia chrome bricks, semi-rebonded magnesia chrome bricks, rebonded magnesia chrome bricks, high chrome bricks,  chemical bonded magnesia chrome bricks, fused cast magnesia chrome bricks and so on. Besides, shaped magnesia chrome bricks, special shape magnesia chrome bricks can be produced according to customer’s requirement. We also offer refractory products design and manufacturing service according to customer’s actual applications.   

  Technical Data:

Common magnesite chrome brick                                                                                                                                                                                                                                                                                        

 Items

Physical and Chemical characters

MGe-16A

MGe-16B

MGe-12A

MGe-12B

MGe-8A

MGe-8B

MgO % ≥

60

45

60

55

65

60

Cr2O3 % ≥

16

16

12

12

8

8

Apparent Porosity % ≤

19

22

19

21

19

21

Cold Crushing Strength MPa≥

35

25

35

30

35

30

Refractoriness Under Load °C≥

1650

1550

1650

1550

1650

1530

 

Direct-Bonded magnesite chrome brick

 

 Items

Physical and Chemical characters

ZMGe-16A

ZMGe-16B

ZMGe-12A

ZMGe-12B

ZMGe-8A

ZMGe-8B

ZMGe-6

MgO % ≥

60

58

68

65

75

70

75

Cr2O3 % ≥

16

16

12

12

8

8

6

SiO2 %

1.5

2.5

1.5

2.5

1.5

2.5

2.5

Apparent Porosity % ≤

18

18

18

18

18

18

18

Cold Crushing Strength MPa ≥

40

40

45

45

45

45

45

Refractoriness Under Load °C ≥

1700

1650

1700

1650

1700

1650

1700

 

 

  Application:

Magnesia Chrome Bricks Applications

The refractoriness under load of magnesia chrome bricks is higher than 1550℃, and their high temperature volume stability is good, thermal shock property is better than magnesia bricks. Ordinary magnesia chrome bricks feature in simple production craft and low price, they are widely used in rotary cement kiln(Cr2O3 content is usually below 14%), glass kiln regenerator, steel smelting furnace lining, refining steel ladle permanent lining, nonferrous metals smelting furnaces, lime kiln, metal mixer, high temperature refractory material sintering kiln working lining and so on.  

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