Silica Bricks for coke ovens we produce have high content of Tridymite, very little residual quartz, good thermal conductivity, relatively stable high temperature creep performance, high crushing strength as well as excellent abrasion.
|
Item/Specifications |
Guaranteed Value |
|
|
|
Furnace Hearth, Furnace Wall |
Other |
|
SiO2 % ≥ |
94.5 |
|
|
Al2O3 % ≤ |
1.5 |
|
|
Fe2O3 % ≤ |
1.5 |
|
|
CaO % ≤ |
3.0 |
|
|
Apparent Porosity % ≤ |
22 |
24 |
|
True Density g/cm³ ≤ |
2.33 |
2.34 |
|
Cold Crushing Strength Mpa ≥ |
40 |
35 |
|
Thermal Expansion (1000℃) ≤ |
1.28 |
1.28 |
|
Reheating Linear Change (1450°C * 2h)% ≤ |
0~+0.2 |
0 |
|
0.2Mpa Refractoriness Under Load （T0.6）°C ≥ |
1650 |
|
|
Residual Quartz,% ≤ |
1.0 |
|
