index
item
Silica brick
Silica brick for hot stoves
GZ-95
GZ-94
GZ-93
LRG-95
Lattice brick
SiO2% ≥
95
94
93
thermal expansion(10000C)% ≤
1.26
0.2MPa refractoriness under load 0C ≥
1650
-
1620
linear change after heating%((14500C×2h)
+0.2
apparent porosity% ≤
22
23
25
cold crushing strength MPa ≥
29.4
24.5
19.6
35
30
true density g/cm3 ≤
2.37
2.38
2.39
2.35
0.2MPa creep rate (15000C×50h)% ≤
0.8
