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Clay Insulating Brick Series

Clay Insulating Brick Series

Insulating Brick

Item Code:A3101

Product Introduction

Clay insulating brick series is a kind of light refractory material product. Its main raw material is the floating bead of flyash in thermal power plants. Its producing process includes: adding moderate agglomerant and auxiliary materials, which are mainly refractory clay fine powder with all passing through 100 mesh, together with floating bead, homogeneously mixing, pressure moulding and calcining with high temperature.


The series is suitable for insulating layers and linings of glass furnaces, other thermal industrial furnaces as well as other thermal industrial equipments.


It has high compressive strength, low thermal conductivity and other characteristics. In the working process, it is capable of reducing thermal capacity of furnace body and increasing furnace thermal efficiency.

Physical and Chemical Indicators

Index N-1.3 N-1.0 N5-0.8 N-0.6 N-0.4
Al2O3   %≥ 23
Fe2o3   %≤ 3
0.1MPa  Refractoriness under load ℃ ≥ 1320 1300 1250 1200 1100
B.D. / (g/cm3 )   ≤ 1.3 1 0.8 0.6 0.6
C.C.S./MPa    ≥ 5 3.5 2.5 1.3 1.3
heating linear chance /% Test Temperature T/℃ 1350℃x 12h 1300℃x 12h 1250℃x12h 1200℃x 12h 1200℃x 12h
min- max -1~0
Thermal Conductivity [W/(m·K)] Average Temperature
( 350±25 ) ℃  ≤
0.55 0.4 0.35 0.25 0.2
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