Series:
Direct bonded Magnesia-Chrome Brick
Magnesia Chrome Bricks
Magnesia Zirconia Bricks
Magnesite Alumina Brick
Magnesite Alumina Spinel Brick
Magnesite Brick
Rebonded Magnesia-Chrome Brick
Semi Rebonded Magnesia Chrome Brick
Magnesium-chrome brick magnesia (MgO) and chromium oxide (Cr2O3) as the main ingredient, periclase and spinel as the main mineral components of refractory products. The main raw material to manufacture magnesium chrome brick is sintered magnesia and chromite. Purity magnesia raw material to be as high as possible, the requirements of the chemical composition of chromite is: Cr2O3: 30 ~ 45%, CaO: ≤1.0 ~ 1.5%.
Common magnesite chrome brick
|
Item
|
MGe6
|
MGe8
|
MGe12
|
MGe16
|
|
MgO %
|
80
|
72
|
70
|
65
|
|
Cr2O3 %
|
7
|
10
|
13
|
17
|
|
CaO %
|
1.2
|
1.2
|
1.2
|
1.2
|
|
SiO2 %
|
3.4
|
4
|
4
|
4.2
|
|
Al2O3 %
|
4.5
|
6.5
|
6
|
6
|
|
Fe2O3 %
|
4
|
4.8
|
5.5
|
6.5
|
|
Apparent Porosity %
|
17
|
18
|
18
|
18
|
|
Bulk Density g/cm3
|
3
|
3
|
3.02
|
3.05
|
|
Cold Crushing Strength Mpa
|
55
|
55
|
55
|
50
|
|
Refractoriness Under Load °C
|
1600
|
1600
|
1600
|
1600
|
Direct-Bonded magnesite chrome brick
|
Item
|
DMGe4
|
DMGe8
|
DMGe12
|
DMGe16
|
|
MgO %
|
85
|
77
|
74
|
69
|
|
Cr2O3 %
|
5.5
|
9.1
|
14
|
18
|
|
CaO %
|
1.1
|
1.4
|
1.2
|
1.2
|
|
SiO2 %
|
1.3
|
1.2
|
1.2
|
1.5
|
|
Al2O3 %
|
3.5
|
4
|
3.5
|
4.5
|
|
Fe2O3 %
|
3
|
6.4
|
5
|
5.7
|
|
Apparent Porosity %
|
18
|
18
|
18
|
18
|
|
Bulk Density g/cm3
|
3.02
|
3.04
|
3.06
|
3.08
|
|
Cold Crushing Strength Mpa
|
50
|
50
|
55
|
55
|
|
Refractoriness Under Load °C
|
1700
|
1700
|
1700
|
1700
|
|
Thermal expansion %
1000°C
|
1
|
1
|
1
|
0.9
|
|
Thermal expansion %
1600°C
|
1.8
|
1.8
|
1.8
|
1.6
|
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