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Magnesia Brick
Counter 221   Addtime：2006-07-05 0:03:59
Brand name
Item
Ordinary magnesia brick
Quatity magnesia brick
MZ-91
MZ-89
MZ-87
MZ-98
MZ-97
MZ-96
MZ-95
MZ-93
MgO≥%
91
89
87
97.5
96.5
96
94.5
93
CaO≤%
3
3
3
1.2
1.2
2.0
2.0
Fe2O3≤%
0.7
0.9
1.0
SiO2 ≤%
0.8
1.5
1.5
2.5
3.5
Bulk density≥g/cm3
2.9
2.8
2.7
3.10
3.05
3.0
2.95
2.95
Apparent porosity
18
20
20
16
16
17
18
18
Cold crushing strength≥MPa
55
45
40
65
60
60
50
65
Temperature of refractoriness under load 0.2Mpa≥℃
1530
1520
1500
1700
1700
1650
1600
1550

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