• Refractory Mullite Insulating Refractory Brick JM 29 System 1
  • Refractory Mullite Insulating Refractory Brick JM 29 System 2
  • Refractory Mullite Insulating Refractory Brick JM 29 System 3
  • Refractory Mullite Insulating Refractory Brick JM 29 System 4
Refractory Mullite Insulating Refractory Brick JM 29

Refractory Mullite Insulating Refractory Brick JM 29

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
20 m.t.
Supply Capability:
20 m.t./month

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General Information

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)

 

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

 

Application of Insulating brick

Metallurgical Industry: blast furnace, hot blast furnace, heating furnace, etc..

Petrochemical Industry: ethylene cracking furnace, hydrogen furnace, the main furnace, heating furnace, etc..

Ceramic industry: roller kiln, kiln, etc..

Glass industry: glass furnace regenerator, etc.

Carbon industry: carbon furnace, etc..

Aluminum electrolysis industry: aluminum reduction cell, etc.

Other industries: tunnel kiln, shuttle kiln, etc.

 

Advantages of heat insulation brick

Low thermal conductivity: many air holes will bring good thermal insulation effect, energy saving.

High crushing strength: high crushing strength, volume stability.

Low heat storage: small heat storage, absorb more heat, energy-saving effect is obvious.

 

Technical Data

ITEM

GJM30

GJM28

GJM26

GJM23

Classification       Temperature, /          

3000/1650

2800/1540

2600/1430

2300/1260

Bulk       Densityg/cm³  

≤1.0

≤0.9

≤0.8

≥0.5

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, %           

≥75

≥65

≥55

≥45

Fe2O3       Content,       %                   

≤0.5

≤0.6

≤0.7

≤1.0

Thermal       Conductivity:      

 800℃,   w/m.k     

≤0.39

≤0.37

≤0.35

≤0.18

 1000℃,   w/m.k

≤0.43

≤0.41

≤0.39

≤0.20

 1200℃,   w/m.k

≤0.48

≤0.46

≤0.43

---

Insulating brick

Refractory Mullite Insulating Refractory Brick JM 29 

Q:Can insulating fire bricks be used in residential applications, such as fireplaces or ovens?
Yes, insulating fire bricks can be used in residential applications such as fireplaces or ovens. Insulating fire bricks are designed to withstand high temperatures and provide excellent insulation, making them suitable for use in these applications. They help retain heat, improve energy efficiency, and enhance safety by preventing heat transfer to surrounding structures.
Q:Can insulating fire bricks be used as a lining material for boilers?
Yes, insulating fire bricks can be used as a lining material for boilers. Insulating fire bricks are designed to withstand high temperatures and provide excellent insulation, making them suitable for use in boiler linings.
Q:Are insulating fire bricks resistant to fluorine gas?
Typically, insulating fire bricks do not possess resistance against fluorine gas. Known for its high reactivity and corrosiveness, fluorine gas has the capability to react with diverse substances, including insulating fire bricks. The corrosive properties of fluorine gas may result in structural and integrity harm to the fire bricks, eventually leading to their degradation or malfunction. Hence, it is recommended to opt for an alternative refractory material that is specifically engineered to endure the corrosive impact of fluorine gas, in case it is needed for a specific application.
Q:Can insulating fire bricks be used for insulation in hot blast stoves?
Yes, insulating fire bricks can be used for insulation in hot blast stoves. Insulating fire bricks are designed to withstand high temperatures and have excellent thermal insulation properties. They are made from lightweight materials with low thermal conductivity, which allows them to effectively retain heat and prevent heat transfer to the surrounding environment. In hot blast stoves, where temperatures can reach extremely high levels, insulating fire bricks can help maintain high temperatures inside the stove while minimizing heat loss. This not only improves the energy efficiency of the stove but also helps to protect the structure from excessive heat. Therefore, using insulating fire bricks for insulation in hot blast stoves is a common and effective practice.
Q:Can insulating fire bricks be used in refractory cement?
Yes, insulating fire bricks can be used in refractory cement. Insulating fire bricks are specifically designed to withstand high temperatures and provide excellent insulation, while refractory cement is used to bind and seal refractory materials. By using insulating fire bricks in refractory cement, it can enhance the overall insulation properties and improve the performance of the cement in high-temperature applications.
Q:Can insulating fire bricks be used in combination with other insulation materials?
Yes, insulating fire bricks can be used in combination with other insulation materials. Insulating fire bricks are known for their excellent thermal insulation properties and can be used to effectively reduce heat transfer in various applications such as kilns, furnaces, and fireplaces. However, in some cases, additional insulation may be required to achieve optimal thermal efficiency. Combining insulating fire bricks with other insulation materials can further enhance the overall insulation performance. For example, ceramic fiber blankets or boards can be used alongside insulating fire bricks to provide additional insulation and to fill any gaps or joints between the bricks. This combination can help minimize heat loss and improve energy efficiency. Furthermore, using multiple insulation materials can also provide other benefits such as increased fire resistance, improved sound insulation, and enhanced structural integrity. By utilizing different insulation materials in combination, it is possible to create a more effective insulation system that meets specific requirements for different applications. It is important to consider the compatibility and compatibility of the different insulation materials when combining them. Each material may have different thermal properties, density, and installation requirements, so it is crucial to follow the manufacturer's recommendations and guidelines for proper installation. In summary, insulating fire bricks can be used in combination with other insulation materials to enhance thermal insulation and improve overall performance in various applications. However, it is essential to ensure compatibility and follow proper installation guidelines for optimal results.
Q:Can insulating fire bricks be used in the construction of pottery extruders?
Using insulating fire bricks in the construction of pottery extruders is a reliable and effective choice because these bricks have high heat resistance and insulation properties. They are well-suited for applications involving high temperatures, such as pottery kilns and extruders. The durability and longevity of the extruder are ensured as these bricks can withstand the intense heat generated during the pottery extrusion process. Furthermore, their insulation properties help maintain a consistent temperature within the extruder, which is crucial for achieving precise and consistent results in pottery production.
Q:Can insulating fire bricks be used in chimney liners?
Yes, insulating fire bricks can be used in chimney liners. Insulating fire bricks are designed to withstand high temperatures and provide excellent insulation properties. They are commonly used in applications such as kilns, furnaces, and fireplaces where heat retention is important. When used as chimney liners, insulating fire bricks help to protect the chimney walls from the extreme heat generated by the fire, while also minimizing heat loss. This can improve the efficiency of the chimney and reduce the risk of damage to the surrounding structure. However, it is important to consult with a professional chimney technician or engineer to ensure that the specific type of insulating fire brick being used is suitable for the intended application and meets all relevant safety standards and building codes.
Q:Can insulating fire bricks be used in contact with molten metals?
Yes, insulating fire bricks can be used in contact with molten metals. Insulating fire bricks are designed to handle high temperatures and can withstand the heat generated by molten metals. They have excellent insulation properties and can effectively protect against heat transfer, making them suitable for various applications involving molten metals.
Q:Can insulating fire bricks be used in the construction of melting furnaces?
Yes, insulating fire bricks can be used in the construction of melting furnaces. These bricks are designed to withstand high temperatures and provide excellent insulation, making them ideal for use in melting furnaces where heat retention is crucial.

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