• Insulating Fire Brick - Refractory Mullite Insulating Refractory Brick JM 27 System 1
  • Insulating Fire Brick - Refractory Mullite Insulating Refractory Brick JM 27 System 2
  • Insulating Fire Brick - Refractory Mullite Insulating Refractory Brick JM 27 System 3
  • Insulating Fire Brick - Refractory Mullite Insulating Refractory Brick JM 27 System 4
Insulating Fire Brick - Refractory Mullite Insulating Refractory Brick JM 27

Insulating Fire Brick - Refractory Mullite Insulating Refractory Brick JM 27

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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 27

Refractory Mullite Insulating Refractory Brick JM 27

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: Do insulating fire bricks have a high resistance to spalling?
Insulating fire bricks possess a remarkable ability to resist spalling. Spalling occurs when the surface of a material breaks or flakes off, and fire bricks are particularly susceptible to this phenomenon due to exposure to intense heat and thermal shock. However, insulating fire bricks are specially engineered to endure these extreme temperatures and thermal cycling, resulting in a significant resistance to spalling. These bricks are crafted from top-notch refractory materials like alumina or silica, renowned for their exceptional thermal shock resistance. Furthermore, they are manufactured with low thermal conductivity, effectively reducing heat transfer and minimizing the chances of spalling. In summary, insulating fire bricks are the perfect choice for applications demanding high spalling resistance, such as furnaces, kilns, and other environments with elevated temperatures.
Q: Can insulating fire bricks be used as insulation in walls and roofs?
Yes, insulating fire bricks can be used as insulation in walls and roofs. They have excellent thermal insulation properties, high heat resistance, and are specifically designed for use in high-temperature environments.
Q: Can insulating fire bricks be used for fireplace construction?
Indeed, insulating fire bricks are suitable for constructing fireplaces. These bricks are specifically engineered to endure extreme temperatures while offering superb insulation, rendering them perfect for lining fireplaces. They aid in retaining heat, improving fireplace efficiency, and preventing heat dissipation. Furthermore, insulating fire bricks possess a lightweight quality, facilitating easier handling and installation. Ultimately, opting for insulating fire bricks in fireplace construction is a pragmatic decision that can enhance fireplace performance and energy efficiency.
Q: Can insulating fire bricks be used in refractory castings?
Yes, insulating fire bricks can be used in refractory castings. These bricks are designed to have low thermal conductivity, making them suitable for applications where high insulation is required, such as in refractory castings. They provide excellent heat insulation and can withstand high temperatures, making them an ideal choice for various refractory applications.
Q: Can insulating fire bricks be used for high-temperature applications?
Yes, insulating fire bricks are commonly used for high-temperature applications. These bricks are specifically designed to provide excellent thermal insulation and withstand extreme temperatures. They can typically withstand temperatures of up to 2600°F (1427°C) or even higher depending on the specific type and composition of the brick. Insulating fire bricks are commonly used in kilns, furnaces, and industrial applications where high temperatures are required. They are known for their low thermal conductivity, which helps to minimize heat loss and increase energy efficiency. Additionally, these bricks are lightweight, durable, and resistant to thermal shock, making them ideal for high-temperature environments.
Q: Can insulating fire bricks be used for insulation in glass manufacturing?
Yes, insulating fire bricks can be used for insulation in glass manufacturing. Insulating fire bricks are designed to have excellent thermal insulation properties, high heat resistance, and low thermal conductivity. These characteristics make them suitable for applications where high temperatures need to be maintained or controlled, such as in glass manufacturing processes. The use of insulating fire bricks in glass manufacturing helps to reduce heat loss and improve energy efficiency. By insulating the furnace or kiln, the bricks prevent excessive heat from escaping, thereby reducing the energy required to maintain the desired temperature. This not only saves on energy costs but also helps to create a more stable and controlled environment for the glass manufacturing process. Furthermore, insulating fire bricks can withstand the extreme temperatures typically involved in glass manufacturing, making them a reliable choice for insulation. They can withstand temperatures up to 3000 degrees Fahrenheit (1650 degrees Celsius), ensuring the bricks remain structurally intact and effective in insulating the furnace or kiln. In summary, insulating fire bricks are a suitable choice for insulation in glass manufacturing due to their excellent thermal insulation properties, high heat resistance, and low thermal conductivity. They help to improve energy efficiency, maintain stable temperatures, and create a controlled environment for the glass manufacturing process.
Q: Do insulating fire bricks have good mechanical strength?
Yes, insulating fire bricks have good mechanical strength. They are specifically designed to withstand high temperatures and provide excellent thermal insulation while maintaining their structural integrity.
Q: Do insulating fire bricks have good mechanical strength?
Insulating fire bricks generally have moderate mechanical strength compared to regular fire bricks. While their main purpose is to provide excellent thermal insulation, they are still able to withstand some amount of mechanical stress. However, it is important to note that their mechanical strength may not be as high as other types of fire bricks, which are specifically designed to withstand heavier loads and abrasion. Therefore, if the application requires both high insulation and superior mechanical strength, it might be necessary to consider using a combination of insulating fire bricks and regular fire bricks to achieve the desired outcome.
Q: Are insulating fire bricks resistant to acids and alkalis?
Yes, insulating fire bricks are generally resistant to acids and alkalis due to their high temperature stability and non-reactive nature.
Q: Are insulating fire bricks resistant to cracking?
Insulating fire bricks are specifically designed to have a high resistance to cracking. They are made from lightweight ceramic materials that have low thermal conductivity and high thermal shock resistance. These properties enable the bricks to withstand rapid temperature changes without cracking. Additionally, insulating fire bricks undergo a firing process that strengthens their structure and minimizes the risk of cracking. However, it is important to note that extreme thermal shock or physical impact can still potentially cause cracking in insulating fire bricks, so proper handling and installation techniques should be followed to ensure their longevity and effectiveness.

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