Lightweight High Alumina Insulating Brick for Extreme Thermal Environments

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Insulation and Refractory Materials

lightweight high alumina insulating brick
high alumina insulating refractory brick
poly light high alumina br
poly light high alumina br
lightweight high alumina insulating brick
high alumina insulating refractory brick
poly light high alumina br
poly light high alumina br
Poly Light High Alumina Brick

Laurel’s lightweight high alumina insulating brick is a high-performance refractory material engineered for demanding thermal insulation tasks. This high alumina insulating refractory brick is crafted from premium-grade alumina and advanced lightweight aggregates, forming a robust micro-porous structure ideal for minimizing heat transfer in high-temperature operations.

As a poly light high alumina brick, it offers excellent insulation with superior mechanical strength, performing reliably in service temperatures between 1350°C and 1550°C. It is widely used in metallurgical kilns, ceramic industries, petrochemical furnaces, and other high-efficiency thermal systems.


Product Details


Applications:

1.Typical Applications for Poly Light High Alumina Brick

2.Iron & Steel: Preheater insulation, ladle lining, tundish covers

3.Ceramics & Glass: Tunnel kiln insulation, shuttle kiln back-up layers

4.Petrochemical: Reformer chambers, reactor insulation blocks

5.Incineration: Lining for energy recovery furnaces and chambers

6.General Industry: Heat-treatment systems, fireboxes, furnace roofs



Table parameters

Item

High alumina insulating brick

Al2O3(%)

48

48

Fe2O3(%)

≤2.5

≤2.5

Bulk density ( g/cm3 )

0.8

1.0

Working Temperature(°C)

1250

1250

Cold Crushing Strength (Mpa)

2.6

4.0

Thermal conductivity

(W/m.k)

0.40(400℃)

0.60(400℃)


Features

Features

Core Advantages of Lightweight High Alumina Insulating Brick

The uniform pore structure of this high alumina insulating refractory brick ensures low thermal conductivity, helping retain furnace heat and reduce energy consumption in continuous operations.

The lightweight high alumina insulating brick decreases furnace mass, making it ideal for elevated or mobile installations. It enables quicker heat-up cycles and lighter support structures.

Designed to withstand repeated heating and cooling, the poly light high alumina brick maintains structural stability and shape, even in extreme thermal cycling environments.


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