Kiln furniture large-sized lightweight mullite brick

Product ID: 7aa4
 
 

 

Kiln furniture large-sized lightweight mullite bricks are new type of mullite material formed by an advanced manufacturing process, which use of top-grade mullite grogs as raw materials, high quality alumina as additive to fit different use temperature.


The characteristics of this product include: high strength, low thermal conductivity, good heat preservation performance, small linear change on reheating, and excellent high temperature perfomance.


Large-sized lightweight mullite bricks can be used in a variety of industrial kiln: pottery kiln, metallurgy furnace, casting furnace.


The standard specifications is 230 x 114 x 64 mm. Custom-made order is also available to meet specific requirements.


Material Properties:

 

  Type 1 Type 2 Type 3 Type 4 Type 5 Type 6
 Al2O3 Content>=4545 54 54 65 65 
 SiO2 Content>=53 53 45 45 33 33 
 Fe2O3 Content>=1.0 1.0 0.8 0.8 0.7 0.7 
 Bulk Density (g/cm3) 0.60.8 0.8 1.0 0.8 1.0 
 Linear Reheating Shrinkage (%)<=0.6 in 24hrs @1230 0C <=0.5 in 24hrs @ 1230 0C<=0.4 in 24hrs @ 1400 0 <=0.4 in 24hrs @ 1400 0C<=0.5 in 24hrs @ 1500 0<=0.5 in 24hrs @ 1500 0

 Compressive Mechanical Strength @ Tamb (MPa)

 >=1.1>=2.1 >=2.0 >=3.2 >=3.2 >=4.8 
 Thermal Expansion coefficient @ 1000 0C (%)0.4 0.5 0.5 0.5 0.6 0.6 
 Thermal Conductivity Coefficient @ <350 0C (W/(m.K))0.2 0.24 0.25  0.320.28 0.36 
 Working Temperature (0C)1250 1250 1400 1400 1540 1540 

 

If you are interested in this product, or if you have any questions about this product, please contact us, our experienced staff would be very happy to assist you.