Silica Insulating Brick
2.SiO2 content is above 91%,bulk density is under 1.2g/cm3.
3.Light weight fireproof refractory material.
Technical data sheet
|
Item |
1.0 Density |
1.1 Density |
1.15 Density |
1.2 Density |
|
SiO2(%) |
91 |
91 |
91 |
91 |
|
Density (g/cm3) |
1.0 |
1.1 |
1.15 |
1.2 |
|
Cold Crushing Strength(Mpa) |
1.96 |
2.94 |
4.9 |
5.39 |
|
0.2Mpa Refractoriness Under Load(°C) |
1420 |
1460 |
1500 |
1560 |
|
Permanent Linear Change On Reheating(%) |
≤0.5 1450°CX2h |
≤0.5 1450°CX2h |
≤0.5 1550°CX2h |
≤0.5 1550°CX2h |
|
Thermal Conductivity (W/MK) 350°C |
≤0.55 |
≤0.6 |
≤0.65 |
≤0.7 |
|
Thermal expansion rate |
1.3 |
1.3 |
1.3 |
1.3 |
Features
1.High refractoriness, Refractoriness Under Load is similar to same SiO2 content silica brick.
2.More porosity,so compression strength,slag resistance,corrosion resistant is not better than silica brick,but thermal shock resistance is improved.
3.Use at high temperatures, can not contact with alkaline refractory materials.
4.High strengh resistance-acid erosion.
5.Highest working temperature:1200～1550℃ depend on material.
Applications
1.Glass furnace and Glass Kiln for glass industry
2.Hot blast furnace or stove
3.Iron Steel making furnaces
4.Ceramic tunnel kiln,Cement kiln
5.Other high temperature kiln furnace
