Product Description:Lightweight firebrick has the characteristics of low density, high porosity, low thermal conductivity, good thermal insulation and certain compressive strength, it is widely used in heat treatment equipment.
Product Features:1, Lightweight firebrick has large porosity and loose structure, so it cannot be used in direct contact with slag and liquid metal; 2, Because of low mechanical strength, it can not be used for load-bearing structure; 3, Due to its poor wear resistance, it is not suitable for contact with the fireface and wear parts.
Application:Lightweight insulation bricks do not allow direct contact with flame, high temperature melts and are easily eroded in a chemical atmosphere. It is widely used in high temperature masonry of industrial kilns and thermal equipment.
|Light-weight insulation bricks|
|Chemical composition||Al2O3, %||40||42||42|
|Linear rate of change, %||℃*12h||1300||1350||1350|
|Thermal conductivity, (w/m.k)||at 350±25℃||0.25||0.35||0.5|
|Bulk density, g/cm3||0.6||0.8||1|
|Cold crushing strength, MPa||2||2.5||3.4|
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