Poly Light High Alumina Insulating brick
1.Made by high purity high alumina bauxite as the main material by shaping at high pressure and sintering at high temperature.
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.
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