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Tubular Checker Brick for Regenerators in Glass Melting Kilns
Counter 222   Addtime：2006-07-04 23:30:03
Brand Name
Item
Magnesia zircon
Fused rebounded magnesia bricks

Fused rebounded magnesia-chrome

XMZR
XDMZ-98
XDMZ-97
XDMZ-96
XDMZ-95
XDMC-12
MgO ≥%
76
97.5
97
96
95
70
SiO2 ≤%
0.8
1.0
1.2
1.5
2.5
CaO ≤%
1.2
1.2
1.5
1.0
Fe2O3 ≤%
0.6
0.9
1.0
1.2
Cr2O3 ≥%  
 
12
ZrO2 ≥%
12
Apparent porosity
16
15
18
18
18
18
Cold crushing strength ≥MPa
80
60
65
60
60
40
Refractoriness under load T0.6≥℃
1640
T0.5
1700
1700
1650
1600
1650
Bulk density ≥g/cm3
3.2
3.05
3.05
3.0
2.95
3.0
Thermal expansion%(℃)   1.9(1400℃)        
Thermal shock resistances 950℃ wind cycle
30
15
20
20
20
20
Thermal conductivity W/m.k
400℃
700℃
1100℃

7.5
5.5
4.2
      

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