Poly Light High Alumina Insulating brick
2.Al2O3 content above 48%.
3.Bulk density is 0.5-1.2g/cm3,the porosity is 66%-73%, crushing strength is 1.5-8.1MPa, thermal conductivity is 0.291-0.582W/(m.K) (1350°C).
4.Working temperature:lesst than 1400°C,Max working temperature 1350°C-1650°C.
Technical data sheet
|
0.6 |
0.8 |
1.0 |
1.2 |
|
|
Al2O3(%) |
≥48 |
≥48 |
≥48 |
|
|
Fe2O3(%) |
≤2 |
≤2 |
≤2 |
≤2 |
|
Bulk Density(g/cm3) |
≤0.6 |
≤0.8 |
≤1.0 |
≤1.2 |
|
Cold crushing strength(MPa) |
≥2.0 |
≥2.9 |
≥3.9 |
≥5.0 |
|
350℃Thermal conductivity(W/m.k) |
≤0.3 |
≤0.35 |
≤0.5 |
≤0.55 |
|
Reheating Linear Change less than 2.0%/°C |
1350 |
1400 |
1400 |
1400 |
Feature
1.Low levels of iron and other impurities;
2.High mechanical intensity;
3.High porosity, low volume density, low thermal conductivity;
4.Good heat insulating performance and energy-efficient;
5.Excellent thermal shock resistance;
6.Strong resistance to the corrosive gas and slag;
Application
Poly light high alumina insulating brick can be in direct contact with the flame.It can be used as inner lining brick of industry kilns wall and industry furnance.such as blast furnace, hot blast stoves ,electric arc furnace, cement kiln,melting furnace, ignition furnace, flue, refining equipment, heating equipment and piping, regeneration device,gas furnace,soaking furnace, annealing furnace, heat reaction chamber and other thermal industrial equipment.
