PRODUCT
Burnt magnesia brick

Magnesia bricks are made from brick-making materials. They are produced through crushing, batching, mixing, forming, and then firing at a high temperature of 1550~1600℃. The firing temperature for high-purity products is above 1750℃. They are mainly used for the permanent linings of steelmaking furnaces, non-ferrous metal smelting furnaces, high-temperature tunnel kilns, linings of magnesia brick calcining kilns and cement rotary kilns, the furnace bottoms and walls of heating furnaces, and various bricks for the regenerators of glass kilns, etc.


Product specifications


project

HY-M89

HY-M91

HY-M95A

HY-96A

HY-97A

HY-M98A

HY-M95B

HY-M96B

HY-M97B

HY-M98B

MgO%≥

89

91

94.5

95.5

96.5

97.5

95

96

97

97.5

Cr2O3%

2.5

2.5

2

1.8

1.5

1.2

2

1.7

1.4

1.2

SiO2≤

-

-

-

2.5

1.5

1.0

2.5

2.0

1.5

1.0

Refractoriness under load(℃)≥

1540

1550

1620

1650

1680

1700

1650

1660

1680

1700

compressive strength MPa≥

55

55

55

55

55

60

60

60

60

60

Apparent porosity %≤

19

18

18

18

17

17

16

16

16

16

 


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