• Insulating Fire Brick - Refractory Mullite Insulating Refractory Brick JM 40 System 1
  • Insulating Fire Brick - Refractory Mullite Insulating Refractory Brick JM 40 System 2
  • Insulating Fire Brick - Refractory Mullite Insulating Refractory Brick JM 40 System 3
  • Insulating Fire Brick - Refractory Mullite Insulating Refractory Brick JM 40 System 4
Insulating Fire Brick - Refractory Mullite Insulating Refractory Brick JM 40

Insulating Fire Brick - Refractory Mullite Insulating Refractory Brick JM 40

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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 40

Refractory Mullite Insulating Refractory Brick JM 40


Q: Can insulating fire bricks be cut to custom sizes?
Yes, insulating fire bricks can be cut to custom sizes. Insulating fire bricks are typically made from lightweight materials such as ceramic fibers or lightweight aggregates, which make them relatively easy to cut. They can be cut using various tools such as a saw, knife, or specialized cutting equipment. It is important to take proper safety precautions and use appropriate tools and techniques to ensure a clean and accurate cut. Additionally, it is advisable to consult the manufacturer's guidelines or seek professional advice to ensure that the cutting process does not compromise the integrity or thermal properties of the insulating fire bricks.
Q: Can insulating fire bricks be used in the construction of smelters or foundries?
Yes, insulating fire bricks can be used in the construction of smelters or foundries. Insulating fire bricks have excellent thermal insulation properties and can withstand high temperatures, making them suitable for lining the walls and floors of smelters or foundries. They help to retain heat, improve energy efficiency, and protect the surrounding structures from extreme temperatures.
Q: Are insulating fire bricks suitable for use in oil refineries?
Insulating fire bricks do not typically suffice in oil refineries due to their inability to withstand the corrosive and abrasive nature of oil and its byproducts, despite being designed for high temperatures. Oil refineries involve a complex process of refining crude oil into various petroleum products, which often exposes materials to harsh chemicals and high temperatures. Instead, refractory bricks or castables specifically tailored to endure the corrosive and abrasive conditions present in the refining process are commonly employed. These refractory materials possess chemical resistance, high strength, thermal shock resistance, and the ability to withstand the extreme temperatures encountered during refining. Moreover, oil refineries necessitate materials that offer excellent insulation properties while also being durable and resistant to thermal stress. While insulating fire bricks possess good insulation properties, they may not possess the necessary durability and resistance to thermal stress demanded in the demanding environment of an oil refinery. Hence, it is advisable to utilize refractory bricks or castables that are designed specifically for oil refineries. These materials can provide the requisite resistance against chemicals, high temperatures, and thermal stress, ensuring the refinery operates safely and efficiently.
Q: What are the advantages of using insulating fire bricks over traditional bricks?
Using insulating fire bricks instead of traditional bricks offers several advantages. To begin with, insulating fire bricks possess superior thermal insulation properties compared to traditional bricks. This means they are more efficient at retaining heat and preventing heat loss. Consequently, they are highly suitable for industries where temperature control is crucial, such as in industrial furnaces, kilns, and ovens. By minimizing heat loss, insulating fire bricks aid in enhancing energy efficiency and reducing heating expenses. Furthermore, insulating fire bricks have a higher melting point than traditional bricks, rendering them more resistant to extreme temperatures. Consequently, they are ideal for use in environments with intense heat, like the metallurgical and glass industries. Insulating fire bricks can endure temperatures of up to 3000°F (1650°C), whereas traditional bricks typically have a lower melting point. Moreover, insulating fire bricks possess a lightweight structure and low thermal mass. As a result, they heat up quickly and cool down rapidly, making them suitable for applications that require frequent temperature changes or rapid heat-up times. Conversely, traditional bricks have a higher thermal mass and take longer to heat up or cool down. Additionally, insulating fire bricks exhibit greater resistance to thermal shock and can withstand sudden temperature changes without cracking or breaking. This durability makes them more long-lasting compared to traditional bricks, which are more susceptible to damage caused by thermal cycling. Furthermore, insulating fire bricks are often easier to install and handle due to their lightweight nature. They are also available in various sizes and shapes, offering more flexibility in construction and design. This versatility can help reduce labor and installation costs. In conclusion, the advantages of using insulating fire bricks over traditional bricks include superior thermal insulation properties, a higher melting point, lightweight structure and low thermal mass, resistance to thermal shock, durability, and ease of installation. These benefits make insulating fire bricks the preferred choice for various high-temperature applications, providing enhanced energy efficiency, cost savings, and overall improved performance.
Q: Can insulating fire bricks be used in ladles?
Yes, insulating fire bricks can be used in ladles.
Q: Can insulating fire bricks be used as a backup insulation material?
Indeed, insulating fire bricks can serve as an alternative insulation material. These bricks are specifically engineered to possess a low thermal conductivity, enabling them to effectively reduce the transfer of heat. Consequently, they are well-suited for deployment as backup insulation in situations where maintaining temperature stability is of utmost importance. Their usage in industrial furnaces, kilns, and other environments characterized by high temperatures is quite common, particularly when the primary insulation material is prone to failure or necessitates additional reinforcement. By providing an additional layer of insulation, insulating fire bricks contribute to the prevention of heat loss and the enhancement of energy efficiency. Moreover, their durability and ability to withstand high temperatures establish them as a dependable choice for backup insulation.
Q: Can insulating fire bricks be used in the construction of metal smelting molds?
Insulating fire bricks are capable of being utilized in the construction of metal smelting molds. Their design allows them to endure high temperatures, rendering them suitable for smelting processes that necessitate extreme heat. These bricks possess remarkable thermal insulation properties, which aid in retaining heat and minimizing heat loss throughout the smelting procedure. This aspect is crucial in upholding a consistent temperature within the mold, ensuring efficient and successful metal smelting. Furthermore, insulating fire bricks are lightweight and easily manageable, making them a practical selection for mold construction. In conclusion, insulating fire bricks are a dependable and efficient choice when it comes to constructing metal smelting molds.
Q: Are insulating fire bricks resistant to chlorine gas?
Yes, insulating fire bricks are resistant to chlorine gas.
Q: What are the dimensions and sizes available for insulating fire bricks?
Insulating fire bricks come in a range of dimensions and sizes to accommodate different applications and needs. The typical dimensions for these bricks are 9" x 4.5" x 2.5" and 9" x 4.5" x 3", which are appropriate for standard industrial and residential uses. However, there are also other sizes available to cater to specific requirements. For example, thinner insulating fire bricks measuring 9" x 4.5" x 1.25" or thicker ones measuring 9" x 4.5" x 4.5" can be utilized in specialized applications. These variations offer flexibility and customization options to meet specific insulation demands. It should be noted that insulating fire bricks can be cut or shaped to fit specific dimensions as necessary. This adaptability in customization allows for precise fitting and installation in various projects. Ultimately, the dimensions and sizes of insulating fire bricks will depend on the unique needs and requirements of the project. Seeking guidance from a supplier or manufacturer can aid in determining the most appropriate dimensions and sizes for your insulation needs.
Q: Do insulating fire bricks require any special insulation blankets or jackets?
Insulating fire bricks (IFBs) possess exceptional insulating properties, rendering them generally exempt from the need for specialized insulation blankets or jackets. However, in certain circumstances and environments, supplementary insulation may prove necessary. In cases where IFBs are subjected to high temperatures or extreme thermal conditions, the utilization of insulation blankets or jackets can prove advantageous, augmenting insulation capabilities and safeguarding against damage. These supplementary insulation materials serve to diminish heat loss, heighten energy efficiency, and prolong the lifespan of IFBs. Consequently, although not invariably essential, it is worthwhile contemplating the implementation of insulation blankets or jackets in specific scenarios to optimize the performance of insulating fire bricks.

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