• 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:Are insulating fire bricks resistant to salt attack?
Insulating fire bricks do not typically possess resistance against salt attack, which refers to the deterioration and corrosion of materials caused by salt or saltwater exposure. Although insulating fire bricks are engineered to have exceptional thermal insulation properties, they are not specifically formulated to endure the damaging effects of salt. Salt attack has the potential to weaken the structure of the bricks, leading to a decrease in their performance and durability over time. If these bricks are consistently exposed to salt or saltwater, it is probable that their degradation will be hastened, making them unreliable for long-term use in such environments. To ensure resilience against salt attack, it is advised to utilize refractory materials specially designed for this purpose, such as salt-resistant fire bricks or refractories with a higher alumina content. These materials have been developed to withstand the corrosive impacts of salt and are better suited for applications where exposure to salt or saltwater is anticipated.
Q:Can insulating fire bricks be used in fertilizer plants?
Yes, insulating fire bricks can be used in fertilizer plants. They are commonly used in high-temperature applications, such as kilns and furnaces, to provide thermal insulation and protect against heat loss. In fertilizer plants, where various processes involve high temperatures, insulating fire bricks can be utilized to enhance energy efficiency and maintain optimal temperature conditions.
Q:Is it possible to recycle broken insulating fire bricks?
Yes, it is possible to recycle broken insulating fire bricks. These bricks can be crushed and used as aggregate in the production of new bricks or other construction materials. Additionally, they can be ground into a fine powder and used as a raw material in the manufacturing of refractory products. Recycling broken insulating fire bricks helps reduce waste and conserve resources.
Q:Are insulating fire bricks resistant to nitric acid?
Yes, insulating fire bricks are generally resistant to nitric acid due to their high refractory properties and chemical stability.
Q:Can insulating fire bricks be used as a heat shield?
Yes, insulating fire bricks can be used as a heat shield. Insulating fire bricks are designed to have excellent thermal insulation properties, which means that they can effectively block and reflect heat. They are commonly used in applications where heat needs to be contained or redirected, such as in fireplaces, kilns, furnaces, and industrial ovens. The insulating properties of these bricks allow them to reduce heat transfer, providing a barrier between the intense heat source and the surrounding environment. Additionally, they have high melting points and can withstand high temperatures, making them suitable for use as a heat shield. However, it is important to note that the effectiveness of insulating fire bricks as a heat shield may vary depending on the specific requirements and conditions of the application.
Q:Are insulating fire bricks suitable for high-temperature kilns?
Insulating fire bricks prove to be a suitable option for high-temperature kilns due to their ability to withstand extreme heat while providing excellent thermal insulation. These bricks are specifically designed to meet the demands of kilns that operate at high temperatures. They are constructed using lightweight and porous materials like clay or silica, which possess low thermal conductivity. Consequently, heat is effectively trapped within the kiln, preventing any loss, while simultaneously offering insulation against the external environment. Furthermore, insulating fire bricks exhibit remarkable resistance to thermal shock, allowing them to endure sudden temperature fluctuations without any damage. Hence, these bricks are a dependable and efficient choice for high-temperature kilns.
Q:Can insulating fire bricks be used for insulation in oil refineries?
Yes, insulating fire bricks can be used for insulation in oil refineries. These bricks have excellent thermal insulation properties and can withstand high temperatures, making them suitable for insulation applications in oil refineries where heat is generated. They can help reduce heat loss and increase energy efficiency in the refining process.
Q:What is the recommended curing time for insulating fire bricks?
The recommended curing time for insulating fire bricks varies depending on the manufacturer and specific product. It is typically recommended to follow the curing instructions provided by the manufacturer, which can range from a few hours to several days.
Q:Are insulating fire bricks resistant to UV radiation?
Insulating fire bricks are not typically designed to be resistant to UV radiation. UV radiation from the sun can cause degradation and discoloration of many materials, including fire bricks. Therefore, it is recommended to protect insulating fire bricks from direct exposure to UV radiation, such as by using a protective coating or covering when they are used in outdoor applications. Additionally, prolonged exposure to UV radiation can also affect the thermal and insulating properties of fire bricks, potentially reducing their effectiveness over time. Therefore, it is important to consider UV protection measures when using insulating fire bricks in applications where they may be exposed to direct sunlight.
Q:Are insulating fire bricks resistant to insects and rodents?
Yes, insulating fire bricks are generally resistant to insects and rodents due to their dense and solid construction, which makes it difficult for pests to penetrate or damage them.

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