High Alumina Insulation Brick for Sale — Lightweight Thermal Efficiency with Strength

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Insulation and Refractory Materials

high alumina insulation brick for sale
high alumina insulation brick factory
high alumina hard firebrick
high alumina hard firebrick
high alumina insulation brick for sale
high alumina insulation brick factory
high alumina hard firebrick
high alumina hard firebrick
High Alumina Insulation Brick

Laurel’s high alumina insulation brick is an advanced refractory solution designed to deliver superior thermal efficiency and structural durability in high-temperature industrial systems. These bricks combine high-purity alumina content (≥48%) with lightweight aggregate and controlled porosity to reduce heat loss while maintaining mechanical strength.

As a leading high alumina insulation brick for sale, this product is ideal for furnaces, kilns, and incinerators requiring low thermal conductivity and reliable performance. Manufactured through a high-temperature sintering process, the high alumina hard firebrick ensures long-term insulation even under cyclic thermal stress.


Product Details



Applications:

1.Hot-face and backup linings in ceramic kilns

2.Heat-treatment furnaces in metallurgy

3.Incinerators, ladles, and tundish insulation

4.High-efficiency reformer units and rotary kilns

5.Furnace roof linings requiring high alumina hard firebrick


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

Property Typical Value

Al₂O₃ Content ≥48%

Bulk Density 0.8–1.3 g/cm³

Service Temperature 1350°C – 1550°C

Thermal Conductivity (@800°C) Very Low

Performance Highlights:

1. The high alumina insulation brick offers ultra-low thermal conductivity to reduce heat transmission, supporting higher thermal retention and fuel savings.

2. The high alumina hard firebrick is resistant to chemical corrosion from molten slags, alkalis, and gases, ensuring long-lasting service even in aggressive environments.

3. Each high alumina insulation brick can be machined to specification, allowing precise fits in complex linings and minimizing thermal bridging at joints.


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+86-15063999498

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info@laurelrefractory.com

+86-532-80829560