Refractory Mullite Insulating Fire Brick GJM26

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20 m.t.
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100000 m.t./month

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CMAX insulating firebricks are classified under temperature between 1300℃ to 1700℃, manufactured from high purity alumina clay.

1. Lower content of iron, alkaline and impurities, good high temperature properties.
2. Homogeneous structure, light weight, energy saving because lower heat storage in the furnace during cooling cycles.
3. High strength, good thermal shock resistance under high temperature.
4. Precise sizes due to grinding and shaping after sintering, which meets the requirement of construction.
5. Max service temp: Up to 1730C (3160F)


Light weight and low thermal conductivity    
Low heat storage  
Low iron and impurities  
High thermal shock resistance


CMAX insulating firebricks can be used as a hot face lining directly exposed to the heat or as a backup insulation layer in iron and steel mills, non-ferrous foundries, petrochemical, ceramic, glass.







Classification Temperature, /      





Bulk Densityg/cm³  





Reheating Linear Change, %

 ≤0.9               (1550℃,12 h)

  ≤0.8                    (1510℃,12 h)

  ≤0.7                       (1410℃,12 h)

 ≤0.5                   (1230℃,12 h)

Al2O3 Content, %           





Fe2O3 Content, %             





Thermal Conductivity:      

 800℃, w/m.k   





 1000℃, w/m.k





 1200℃, w/m.k






Refractory Mullite Insulating Fire Brick GJM26

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Q:What is a JQK composite lightweight thermal insulation brick?
1. structural layer2. leveling layer3. waterproof layer4. thermal insulation layer and decorative layer
Q:What are the bubble bricks?
The requirements for production conditions are not high. Simple shed to plant products without open storage, warehouse, on the quality of workers is not high.
Q:What is the difference between the production line of foamed cement insulation bricks and the self thermal insulation block production line?
Yes, this year's business is not very good to do, customers pay more attention to the quality of products, seven industrial equipment, very satisfied with the service OK
Q:What is the price of thermal insulation brick for exterior wall?
But also depends on how your drawings are made, so as to quote a specific price. There is also the price of each place is not the same, so the quotation will be different.
Q:What is mullite insulation brick?
According to the application temperature can be divided into: 1350 mullite bricks, 1450 mullite bricks, 1550 mullite brick etc..
Q:Material and making method of light insulating brick
The strength products are made of high quality tabular corundum and mullite as aggregate, silicon carbide as matrix, additional special additive and a small amount of rare earth oxide to be mixed, and then formed by high pressure molding and high temperature sintering.
Q:What is composite sintering insulation bricks?
Taking the Yangtze River, lake and silt as the main raw materials, the performance indexes of roasting are in line with the technical specifications and technical requirements of the building blocks, referred to as insulating bricks.
Q:Can the whole wall of the high-rise building be made of grey insulation bricks?
If the frame structure, it may be so. What is the length of the whole wall? If it is longer, it is necessary to make a constructional column; if the hole is larger, the edge of the hole needs to be made into a border or a constructional column; if the entrance is small, the edge of the hole is about 300mm and needs solid bricks to build better. South wall thickness can be about 190mm, plus plastering design value of 200mm. Personal comments for reference!
Q:What is the function of insulating bricks? Where can I use it?
Replace the aluminum plate, honeycomb board, curtain wall and other commonly used decorative materials, multi-functional integration, a construction can solve the thermal insulation decoration two functional requirements, smooth, smooth and beautiful, decorative strong. The utility model has the advantages of high strength, good rigidity, light weight, earthquake resistance, wind resistance, creep resistance, superior performance, lower building load, more economy and durability. Fire retardant, heat preservation, energy saving, sound insulation, heat insulation, crack resistance, waterproof, according to the 65% building energy conservation requirements for construction design.
Q:What's the price of lightweight refractory bricks?
In addition, general price comparisons are meaningless and need to be based on the use of demand = quality of products. After all, good quality is the driving force of continuous production.

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