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Lightweight High Alumina Insulation Brick

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Product: High Alumina Insulation Brick

Category:  insulating brick

Application:  insulation layer of furnace and kilns

Item Code: A3102

What is a High Alumina Insulation Brick?

High alumina insulation brick is a type of lightweight insulating material composed of mullite, glass phase, or corundum. The content of Al2O3 is more than 48%. Bulk density 0.4-1.35g/cm3, porosity 66-73%, compressive strength 1-8MPa.

The high-alumina insulation brick is an economical choice with many advantages. AGRM also supplies other insulating bricks. Don’t hesitate to contact us.

application of High Alumina Insulation Brick

Lightweight high aluminum insulation bricks are widely applied in kiln insulation and areas that are not eroded or invaded by strong high-temperature melt. When the ordinary high aluminum refractory insulation brick is in direct contact with the flame, the surface contact temperature should not exceed 1350℃.

Advantages of mullite insulation brick

Good thermal shock resistance.

High-pressure resistance.

Low thermal conductivity

Good insulation

The manufacturing process of High Alumina Insulation Brick

The high alumina insulation brick is made from bauxite clinker by adding a small amount of clay through grinding, molding, and sintering at 1300–1500 °C. Sometimes industrial alumina can be used in part instead of high bauxite clinker.

Physical And Chemical Indicators of

Item       Lightweight High Alumina Insulation Brick
LG-0.6LG-0.8LG-1.0LG-1.2
B. D. (g/cm3)0.60.811.2
CCS(MPa)≥1.962.9444.5
PLC 1300ºC×12h(%)≤1350140014501500
0.50.50.50.5
Thermal conductivity Average Temperature 350±25ºC (w/k·m)0.250.320.450.5
Refractoriness under load 0.1 MPa (C)≥1300135013801420
Al2o3(%)≥50525252
Fe2o3(%)≤1.81.61.51.5
The highest temperature of working (ºC)1300135013801400

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Phone Number: 0086 16668392162
Address: No. 1109, Building A, World Trade Center, Southern of Zhonghua Road, Wenfeng District, Anyang City, Henan Province, China

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