• Insulating Fire Brick - Refractory Mullite Insulating Refractory Brick JM 41 System 1
  • Insulating Fire Brick - Refractory Mullite Insulating Refractory Brick JM 41 System 2
  • Insulating Fire Brick - Refractory Mullite Insulating Refractory Brick JM 41 System 3
  • Insulating Fire Brick - Refractory Mullite Insulating Refractory Brick JM 41 System 4
Insulating Fire Brick - Refractory Mullite Insulating Refractory Brick JM 41

Insulating Fire Brick - Refractory Mullite Insulating Refractory Brick JM 41

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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 41

Refractory Mullite Insulating Refractory Brick JM 41

Common problem solution

1. What products do you have?

We have all kinds of refractory bricks, refractory casting materials, mortar, cement, ceramic fiber products, etc..

Or you can browse our products to choose what you need.

2. How to control product quality?

With strict quality control system throughout the material selection and production process, we have the quality of refractory materials and ceramic fiber products to meet customer requirements.

From the selection of raw materials, the quality of our control to start. The quality of the raw materials required for each batch of products in the use of the front line test. In the production process, through the quality control of workers, and then to each piece of classification, and through quality supervision and inspection.

3. Could you give me a brief introduction to the application of your product?

My Company is mainly engaged in steel, cement, glass, ceramics, petrochemical, electric power and other industries.

4. If I need you, what kind of information do you need?

In order to select the right products, we will provide us with information, such as the United States, technical data, order quantity, product applications, etc..

If you have any questions, please contact us.


Q: What is the weight of an average insulating fire brick?
The weight of an average insulating fire brick can vary depending on its size and composition. However, on average, an insulating fire brick weighs between 2.5 to 5 pounds (1.13 to 2.27 kilograms). These bricks are specifically designed to be lightweight, allowing for easier handling and installation in various thermal insulation applications.
Q: Are insulating fire bricks easy to cut or shape?
Insulating fire bricks are relatively easy to cut or shape compared to other types of bricks. This is primarily due to their lower density and composition, which allows them to be more easily manipulated with standard masonry tools. However, it is important to note that the level of ease may vary depending on the specific type and brand of insulating fire brick. Some may require special tools or techniques for cutting or shaping, while others may be more user-friendly. It is always recommended to consult the manufacturer's instructions or seek professional advice when working with insulating fire bricks to ensure proper cutting or shaping techniques are employed.
Q: How do insulating fire bricks compare to other types of refractory materials?
Insulating fire bricks, also known as IFBs, are a type of refractory material that is specifically designed to have high insulating properties. When compared to other types of refractory materials, such as standard fire bricks or castable refractories, insulating fire bricks offer several distinct advantages. Firstly, insulating fire bricks have a much lower thermal conductivity than standard fire bricks or castable refractories. This means that they are better at preventing heat loss and can provide better insulation for high-temperature applications. The low thermal conductivity of IFBs allows them to effectively retain heat within a furnace or kiln, thereby reducing energy consumption and improving overall efficiency. Furthermore, insulating fire bricks are lightweight compared to other refractory materials. This makes them easier to handle, transport, and install. The lightweight nature of IFBs also helps reduce the overall weight of the refractory lining, which can be beneficial in certain applications. Another advantage of insulating fire bricks is their ability to withstand rapid temperature changes. They have good thermal shock resistance, meaning they can withstand sudden temperature fluctuations without cracking or spalling. This property is particularly important in applications where frequent heating and cooling cycles occur. Moreover, insulating fire bricks have a high level of chemical resistance. They are capable of withstanding corrosive environments and chemical attacks, making them suitable for a wide range of applications involving acids, alkalis, and other aggressive substances. However, insulating fire bricks also have some limitations. They have a lower density compared to standard fire bricks, which means they are less durable and have lower mechanical strength. This makes them less suitable for applications that require high load-bearing capacity or where heavy abrasion may occur. In conclusion, insulating fire bricks offer excellent thermal insulation, lightweight properties, good thermal shock resistance, and high chemical resistance. However, their lower density and reduced mechanical strength may limit their use in certain applications. It is important to carefully consider the specific requirements of the application before choosing insulating fire bricks or other types of refractory materials.
Q: Are insulating fire bricks suitable for use in cement plants?
Yes, insulating fire bricks are suitable for use in cement plants. They are commonly used in high-temperature applications, such as kilns and furnaces, due to their excellent thermal insulation properties and ability to withstand extreme heat. Insulating fire bricks can help optimize energy efficiency, reduce heat loss, and provide a more controlled and stable environment in cement plants.
Q: Are insulating fire bricks resistant to metal penetration?
Insulating fire bricks possess a general resistance to the penetration of metal. These bricks are composed of refractory materials with high melting points and are engineered to endure elevated temperatures. Their application is often found in environments subject to extreme heat, such as furnaces and kilns. The thermal conductivity of insulating fire bricks is low, denoting their effectiveness in impeding heat transfer. This characteristic aids in maintaining a cool outer surface for the bricks, even when the interior is subjected to intense heat. Consequently, such bricks exhibit the ability to withstand the infiltration of molten metal. Nonetheless, it is worth noting that the resistance of insulating fire bricks to metal penetration varies according to the individual composition and quality of the bricks. Inferior-grade bricks may not offer the same level of resistance as their higher-quality counterparts. Furthermore, the duration and intensity of exposure to heat can also influence the bricks' resistance. In conclusion, while insulating fire bricks generally exhibit resistance to metal penetration, it is vital to consider the specific attributes and quality of the bricks employed, as well as the conditions under which they are exposed to heat.
Q: Can insulating fire bricks be used in residential fireplaces?
Yes, insulating fire bricks can be used in residential fireplaces. Insulating fire bricks are designed to withstand high temperatures and provide excellent insulation, making them a suitable choice for fireplace construction. These bricks can help retain heat, increase energy efficiency, and prevent heat loss. They also offer superior protection against thermal shock, which is essential for withstanding the intense heat generated by a fireplace. Additionally, insulating fire bricks are lightweight, easy to handle, and can be easily shaped or cut to fit any fireplace design or size. Overall, using insulating fire bricks in residential fireplaces is a wise choice for homeowners looking to enhance the performance and safety of their fireplace.
Q: Can insulating fire bricks be used in cement plants?
Yes, insulating fire bricks can be used in cement plants. Insulating fire bricks are designed to withstand high temperatures and are commonly used in industries that require thermal insulation. In cement plants, they can be used in various applications such as lining kilns, furnaces, and other high-temperature equipment. These bricks help in reducing heat loss, improving energy efficiency, and ensuring consistent and controlled temperatures in the cement production process. Additionally, insulating fire bricks are lightweight and have low thermal conductivity, making them an ideal choice for insulating applications in cement plants.
Q: Is the building built of cement hollow board safe?
The service life of hollow slab buildings is generally 50-70 years. However, the concept of civil design is relatively conservative, as long as the materials used in strict accordance with national standards, even if 70 years, and not necessarily bad.
Q: Do insulating fire bricks have a low density?
Insulating fire bricks possess a lower density in comparison to alternative brick types. Such bricks are engineered to embody a porous structure, thereby facilitating heat transfer reduction and insulation enhancement. The lightweight characteristic of these insulating fire bricks enables them to furnish efficient thermal insulation. Consequently, they prove apt for a multitude of applications wherein heat preservation and energy efficiency hold paramount significance, such as kilns, furnaces, and fireplaces.
Q: Can insulating fire bricks be used in the construction of pottery wheels?
Insulating fire bricks are indeed applicable for pottery wheel construction. These bricks are specifically engineered to withstand elevated temperatures and offer exceptional insulation, thus rendering them suitable for diverse applications in the pottery sector. By incorporating these bricks into pottery wheel construction, one can effectively retain heat, resulting in more uniform and regulated firing of pottery. Furthermore, their insulating characteristics aid in reducing heat dissipation and enhancing energy efficiency during the operation of the pottery wheel. In summary, the utilization of insulating fire bricks in pottery wheel construction is widely favored due to their capacity to endure high temperatures and provide insulation, which makes them an ideal material for this purpose.

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