The Magnesite refractory brick, Magnesia alumina spinel brick, Magnesia zirconium brick, and Magnesia chrome brick have properties of good corrosion resistance to alkali steam and alkaline slag. It can be used in alkaline material contact areas, like regenerators of glass kilns, cement kilns, non-ferrous Metal smelting furnaces, electric steel-making furnaces, open hearth furnaces, converters, and iron mixing furnaces, etc.
Technical Data Sheet:
| Index / Product |
Unit |
Magnesite Bricks |
Magnesia Alumina Bricks |
Magnesia Zircon Bricks |
Magnesia Chrome Bricks |
Magnesia-Alumina Spinal Bricks |
|
|
MZ-92 |
MZ-95 |
MZ-97 |
MZ-98 |
MLZ-80A |
MLZ-80B |
YMZ-A |
YMZ-B |
DMC-12 |
DMC-8 |
DMC-4 |
MLJ-80 |
MLJ-75 |
MLJ-70 |
| MgO≧ |
% |
92 |
95 |
97 |
98 |
80 |
80 |
77 |
73 |
70 |
73 |
80 |
80 |
75 |
70 |
| CaO ≦ |
% |
2.5 |
2.0 |
1.5 |
1.0 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
| Al2O3 ≧ |
% |
- |
- |
- |
- |
5-10 |
5-10 |
- |
- |
- |
- |
- |
8-20 |
8-20 |
8-20 |
| SiO2≦ |
% |
4.0 |
2.0 |
1.2 |
0.6 |
- |
- |
- |
- |
2.0 |
1.8 |
1.8 |
- |
- |
- |
| ZrO2≧ |
% |
- |
- |
- |
- |
- |
- |
12 |
12 |
- |
- |
- |
- |
- |
- |
| Cr2O3≧ |
% |
- |
- |
- |
- |
- |
- |
- |
- |
12 |
7 |
2 |
- |
- |
- |
| Apparent Porosity ≦ |
% |
18 |
18 |
17 |
17 |
18 |
20 |
16 |
18 |
18 |
18 |
18 |
17 |
19 |
20 |
| Cold Crushing Strength ≧ |
Mpa |
60 |
60 |
60 |
60 |
40 |
30 |
70 |
65 |
45 |
50 |
55 |
40 |
40 |
40 |
| Refractories under Load( 0.2Mpa)≧ |
℃ |
1580 |
1650 |
1700 |
1700 |
1600 |
1580 |
1660 |
1600 |
1650 |
1650 |
1600 |
1700 |
1650 |
1600 |
| Reheating Linear Change(1650℃*2h) |
% |
+0
-0.5 |
+0
-0.3 |
+0
-0.2 |
+0
-0.2 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
| Bulk Density ≧ |
g/cm3 |
2.9 |
2.92 |
3.0 |
3.02 |
2.88 |
2.85 |
3.1 |
3.0 |
3.0 |
2.95 |
2.90 |
2.9 |
2.88 |
2.85 |
| Thermal shock resistance 1100℃ water |
cycle |
- |
- |
- |
- |
4 |
4 |
- |
- |
5 |
5 |
5 |
10 |
10 |
8 |
Note: All chemical-physical data are obtained based on the corresponding refractory bricks of standard size.
