• Insulating Fire Brick - Refractory Mullite Insulating Fire Brick GJM23 System 1
  • Insulating Fire Brick - Refractory Mullite Insulating Fire Brick GJM23 System 2
  • Insulating Fire Brick - Refractory Mullite Insulating Fire Brick GJM23 System 3
  • Insulating Fire Brick - Refractory Mullite Insulating Fire Brick GJM23 System 4
Insulating Fire Brick - Refractory Mullite Insulating Fire Brick GJM23

Insulating Fire Brick - Refractory Mullite Insulating Fire Brick GJM23

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
20 m.t.
Supply Capability:
100000 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
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.

 

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

---

 

Refractory Mullite Insulating Fire Brick GJM23

Q: Are insulating fire bricks resistant to hydrogen sulfide?
In general, hydrogen sulfide is not withstood by insulating fire bricks. This highly corrosive gas has the ability to react with various substances, including fire bricks. Fire bricks, although engineered to endure high temperatures, lack a specific resistance to chemical corrosion. Consequently, when fire bricks encounter hydrogen sulfide, they may deteriorate gradually, resulting in possible harm or malfunction. Hence, it is advisable to employ alternative materials specifically crafted to withstand corrosion caused by hydrogen sulfide in situations where this gas is anticipated.
Q: Can insulating fire bricks be used as a backup insulation in refractory linings?
Yes, insulating fire bricks can be used as a backup insulation in refractory linings. Insulating fire bricks are designed to have low thermal conductivity, which makes them effective in reducing heat transfer in high-temperature applications. Their insulating properties make them ideal for use as a backup insulation layer in refractory linings, helping to further reduce heat loss and improve overall energy efficiency. Additionally, insulating fire bricks are lightweight, which makes them easier to handle and install compared to other refractory materials. However, it is important to consider the specific requirements of the application and consult with a refractory engineer to ensure that insulating fire bricks are suitable for the specific conditions and performance requirements of the refractory lining.
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?
Insulating fire bricks can indeed be utilized in the construction of melting furnaces. These bricks are specifically designed to withstand high temperatures while possessing excellent thermal conductivity. Their primary purpose is to minimize heat loss and conserve energy, rendering them highly suitable for melting furnaces. Additionally, these bricks are lightweight and easily manageable, providing convenience during construction. They are also capable of effectively retaining heat and maintaining a steady furnace temperature, thus ensuring efficient melting and casting processes. Moreover, insulating fire bricks exhibit resistance to chemical corrosion and mechanical stress, showcasing their durability and reliability for long-term use in melting furnaces. In conclusion, considering their thermal properties, ease of use, and durability, insulating fire bricks are a fitting choice for constructing melting furnaces.
Q: How do insulating fire bricks affect the overall moisture control of a structure?
Insulating fire bricks can help improve the moisture control of a structure by reducing the transfer of moisture through walls. These bricks have low thermal conductivity and high resistance to moisture, preventing the penetration of water vapor and minimizing condensation issues. As a result, insulating fire bricks can contribute to a more balanced and controlled indoor environment, reducing the risk of mold, mildew, and structural damage caused by excessive moisture.
Q: How do insulating fire bricks affect the overall durability of a structure?
Insulating fire bricks play a crucial role in enhancing the overall durability of a structure. These bricks are designed to have a low thermal conductivity, which means they are effective in resisting heat transfer. By reducing the amount of heat that passes through the bricks, they help to maintain a stable temperature within the structure, protecting it from extreme temperature variations. One of the key benefits of insulating fire bricks is their ability to withstand high temperatures. They have a high melting point, which allows them to retain their structural integrity even in the presence of intense heat. This quality is particularly important in structures where high temperatures are generated, such as furnaces or kilns. The ability of insulating fire bricks to handle such extreme temperatures greatly contributes to the durability of the structure. Furthermore, insulating fire bricks offer excellent insulation properties. Their low thermal conductivity prevents heat from escaping or entering the structure, leading to energy efficiency. This not only reduces energy consumption but also protects the structure from potential damage caused by excessive heat loss. By maintaining a consistent temperature, insulating fire bricks prevent thermal expansion and contraction, which can lead to cracks and structural instability. In addition to their heat resistance and insulation properties, insulating fire bricks are also known for their resistance to chemical corrosion. Many structures are exposed to harsh environments or chemicals that can cause degradation. However, insulating fire bricks are made from materials that are resistant to chemical reactions, ensuring their durability and longevity. Overall, the use of insulating fire bricks significantly enhances the durability of a structure. Their ability to withstand high temperatures, provide insulation, and resist chemical corrosion make them a valuable component in various industrial and residential applications. By ensuring a stable and protected environment, insulating fire bricks contribute to the long-lasting and reliable performance of the structure.
Q: Can insulating fire bricks be used in the construction of thermal insulation floors?
Insulating fire bricks are indeed suitable for the construction of thermal insulation floors. These bricks are specifically designed to possess low thermal conductivity, enabling them to effectively impede heat transfer. Consequently, they are an excellent selection for thermal insulation purposes, including floors. The utilization of insulating fire bricks in the construction of thermal insulation floors can greatly decrease heat loss from the floor, resulting in enhanced energy efficiency and cost savings. Furthermore, these bricks are lightweight and easy to install, making them a practical option for construction projects. All in all, insulating fire bricks offer a suitable and effective means of incorporating thermal insulation into floors.
Q: Are insulating fire bricks resistant to flame penetration?
Yes, insulating fire bricks are resistant to flame penetration. Insulating fire bricks are made from materials that have high melting points and excellent thermal insulation properties. They are designed to withstand high temperatures and can resist flame penetration. These bricks are often used in applications where there is a need for insulation and protection against heat, such as in furnaces, kilns, and fireplaces. The composition and structure of insulating fire bricks make them highly resistant to flame penetration, allowing them to effectively contain and control the spread of fire.
Q: Do insulating fire bricks have a high thermal conductivity?
No, insulating fire bricks do not have a high thermal conductivity. In fact, one of the main characteristics of these bricks is their ability to minimize heat transfer. Insulating fire bricks are made from materials that have low thermal conductivity, such as lightweight aggregates and refractory fibers. This low thermal conductivity allows the bricks to act as effective insulation, reducing the amount of heat that is conducted through the material. Therefore, insulating fire bricks are specifically designed to have a low thermal conductivity in order to provide excellent insulation properties in high-temperature applications.
Q: Can insulating fire bricks be used for insulation in chemical storage tanks?
Yes, insulating fire bricks can be used for insulation in chemical storage tanks. Insulating fire bricks are specifically designed to provide high levels of thermal insulation, making them suitable for various industrial applications, including chemical storage tanks. These bricks have excellent insulating properties due to their low thermal conductivity, which helps to minimize heat transfer and maintain a stable temperature inside the tank. Additionally, insulating fire bricks are resistant to high temperatures and can withstand the corrosive nature of many chemicals, making them a suitable choice for insulating chemical storage tanks.

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