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Mullite Insulation Bricks

Mullite Insulation Bricks

Item :Mullite Insulation Bricks

Classification Temperature:1260 (℃)

Bulk Density :0.55-0.60 (g/cm3)

Cold Crushing Strength:1.2 (Mpa)

Modulus of Rupture:0.9 (Mpa)

Reheating Linear Change (%) CT-30 ℃X 8H :1230℃ -0.5



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Overview

 Description
Mullite insulation bricks are high alumina refractories mainly made from good quality and pure raw materials.In generally, alumina accounts 65%-75%. Besides mullite,there are also glass phase and christobalite as well as corundum which are good grade fillings. Mullite insulation bricks are widely used for lining in high temperature kilns such as shuttle kiln,roller kiln,glass kiln and petroleum kilns.


Specifications
1.Low thermal conductivity, good heat insulation.
2.Low thermal melting point. Lightweight mullite insulating bricks save heat and energy.
3.Low impurity content,high temperature resistance; higher alumina content ensures good performance.
4.Customized shapes to reduce bricks quantity and cost.
5.Dense,compact and accurate structure,low porosity rate.
6.High loading temperature,corrosion resistance.



 Application
Due to its lightweight and good insulating performance,our mullite insulation bricks has broad use for fire resistance lining in heat side and insulating layers, thus increases energy efficiency greatly. Mullite lightweight bricks are popular in hot blast kiln crown,flame side and bottom parts; glass melting furnace regenerator,ceramic sintering kiln,Petroleum cracking system corners and linings,ethylene pyrolysis furnaces, tubular furnaces, reforming furnaces of synthetic ammonia, gas generators and high-temperature shullte kilns, etc.  

Technical Data

Sunrise Brand JM23 JM26 JM28 JM30 JM32
USA Brand IFB2300 IFB2600 IFB2800 IFB3000 IFB3200
Classification Temperature (℃) 1260 1430 1540 1650 1760
Bulk Density (g/cm3) 0.55-0.60 0.78 0.88 1.03 1.25
Cold Crushing Strength (Mpa) 1.2 1.6 2.1 2.5 3.5
Modulus of Rupture (Mpa) 0.9 1.4 1.6 2.1 2.1
Reheating Linear Change (%) CT-30 ℃X 8H 1230℃ -0.5 1400℃ -0.5 1510℃ -0.5 1620℃ -0.9 1730℃ -0.9
Thermal Expansion 1000℃(%) 0.5 0.7 0.8 0.9 1.1
Thermal conductivity(W/m.k) 400℃ 0.14 0.27 0.32 0.41 0.49
600℃ 0.16 0.29 0.34 0.43 0.5
800℃ 0.18 0.31 0.36 0.44 0.51
1000℃ 0.20 0.33 0.38 0.45 0.53
Al2O3 (%) 37 54 64 72 77
Fe2O3 (%) 1.0 0.9 0.8 0.7 0.5

Inquiry

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