|
Silica bricks for coke oven
|
|
|
item\index |
JG-94 |
JG-95 |
| Sio2
% ≥ |
94 |
95 |
| AL2O3
% ≤ |
1.2 |
1.0 |
| Fe2O3
% ≤ |
1.3 |
1.2 |
| refractoriness
under load(0.2MPa) ℃
≥ |
1650 |
1650 |
| apparent
porosity % ≤ |
class1 |
22 |
22 |
| class2 |
24 |
24 |
cold
crushing strength
Mpa
≥ |
30 |
35 |
| true density
g/cm3 ≤ |
2.34 |
2.34 |
| residual
expansion ≤ |
1 |
1 |
| thermal
expansion(1000℃)%
≤ |
1.25 |
1.25 |
|
|
|
Silica bricks for hot blast
stoves |
|
|
item\index |
JG-95 |
| I |
II |
| Sio2 % ≥ |
95 |
Cold crushing strength
Mpa ≥ |
35 |
30 |
| Apparent porosity % ≤ |
22 |
23 |
| creep rate (1500℃x50h)%
≤ |
0.8 |
| True density g/cm3 ≤ |
2.35 |
| thermal expansion (1000℃)%
≤ |
1.26 |
| residual expansion ≤ |
1 |
|
 |
|
Silica bricks for glass
furnaces |
|
|
item\index |
BG-96A |
BG-96B |
BG-95A |
BG-95B |
| Sio2 % ≥ |
96 |
96 |
95 |
95 |
| Fe2O3 %
≤ |
0.8 |
1.0 |
1.2 |
1.2 |
| refractoriness
℃
≥ |
1710 |
1710 |
1710 |
1710 |
| flux index (AL2O3)
% |
0.5 |
- |
0.7 |
- |
| Refractoriness under load (0.2MPa) ℃
≥ |
1680 |
1670 |
1660 |
1650 |
| Apparent porosity % ≤ |
22(24) |
| Cold crushing strength Mpa
≥ |
35(30) |
| True density g/cm3
≤ |
2.34 |
2.35 |
|
 |
|
Silica refractory
bricks |
|
|
item\index |
I |
II |
| Brand |
TG-95 |
TG-94 |
TG-93 |
QG-1.2 |
| Sio2 % ≥ |
95 |
94 |
93 |
91 |
| refractoriness
℃
≥ |
1710 |
1710 |
1690 |
1670 |
| Refractoriness under load(0.2MPa)℃
≥ |
1650 |
1640 |
1620 |
load lkg/cm2
1560 |
| Apparent porosity % ≤ |
22 |
23 |
25 |
≥45 |
| Cold crushing strength Mpa
≥ |
29.4 |
24.5 |
19.6 |
3.5 |
| True density g/cm3
≤ |
2.37 |
2.38 |
2.39 |
2.39 |
| bulk density g/cm3
≤ |
|
|
|
1.20 |
|
 |
|
|
|
