$Insulating Fire Brick GJM Series - Refractory and Insulating Fire Brick System 1$
$Insulating Fire Brick GJM Series - Refractory and Insulating Fire Brick System 2$
$Insulating Fire Brick GJM Series - Refractory and Insulating Fire Brick System 3$
$Insulating Fire Brick GJM Series - Refractory and Insulating Fire Brick System 4$

$Insulating Fire Brick GJM Series - Refractory and Insulating Fire Brick$

$Insulating Fire Brick GJM Series - Refractory and Insulating Fire Brick System 1$

$Insulating Fire Brick GJM Series - Refractory and Insulating Fire Brick System 2$

$Insulating Fire Brick GJM Series - Refractory and Insulating Fire Brick System 3$

$Insulating Fire Brick GJM Series - Refractory and Insulating Fire Brick System 4$

Insulating Fire Brick GJM Series - Refractory and Insulating Fire Brick

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 17 m.t.

Supply Capability:: 10000 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 Density，g/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	---

Refrctory and Insulating Fire Brick GJM Series

Q: Can insulating fire bricks be used as a lining for boilers?: Yes, insulating fire bricks can be used as a lining for boilers. They have excellent thermal insulation properties, high heat resistance, and can withstand the extreme conditions within a boiler. Insulating fire bricks help in minimizing heat loss, improving energy efficiency, and maintaining consistent temperatures within the boiler.

Q: Can insulating fire bricks be used in sewage treatment plants?: Yes, insulating fire bricks can be used in sewage treatment plants. Insulating fire bricks are designed to have excellent thermal insulation properties, which make them suitable for high-temperature applications. In sewage treatment plants, there are often processes that involve the use of heat, such as anaerobic digestion or sludge incineration. Insulating fire bricks can be used to line the walls, floors, and roofs of the incinerators or digesters, helping to retain the heat generated and improve energy efficiency. Additionally, sewage treatment plants often deal with corrosive and abrasive environments due to the presence of chemicals, acids, and solids in the wastewater. Insulating fire bricks are made from high-quality refractory materials that are resistant to chemical attack and erosion. This makes them a suitable choice for lining tanks, pipes, or other equipment that may come into contact with corrosive substances. Furthermore, insulating fire bricks are lightweight, which makes them easier to handle and install compared to other types of refractory materials. This can be beneficial in sewage treatment plants where there might be a need for frequent maintenance or repairs. Overall, insulating fire bricks are a versatile and durable option for use in sewage treatment plants, providing excellent thermal insulation, resistance to corrosive environments, and ease of installation.

Q: Are insulating fire bricks resistant to gas permeability?: Insulating fire bricks possess gas impermeability, as they are engineered with low porosity and high density. These bricks are crafted from superior refractory materials like clay or silica and undergo a unique manufacturing process that guarantees minimal pore size and compactness. Consequently, they excel at containing gases and averting leakage. Widely employed in high-temperature settings such as furnaces, kilns, and industrial boilers, insulating fire bricks play a critical role in ensuring efficient and safe operations by maintaining gas tightness.

Q: Are insulating fire bricks resistant to molten salts?: Yes, insulating fire bricks are generally resistant to molten salts due to their high melting point and low porosity, which prevents the salts from penetrating the material.

Q: Are insulating fire bricks suitable for insulation in refinery heaters?: Yes, insulating fire bricks are suitable for insulation in refinery heaters. Refinery heaters operate at extremely high temperatures, and insulating fire bricks are designed to withstand these temperatures and provide effective insulation. These bricks have low thermal conductivity, which means they can prevent heat from escaping the heater, thus reducing energy loss and increasing the overall efficiency of the heater. Additionally, insulating fire bricks have excellent thermal shock resistance, meaning they can withstand rapid temperature changes without cracking or breaking. This is crucial in refinery heaters, as they often experience frequent temperature fluctuations during operation. Furthermore, insulating fire bricks are lightweight and easy to install, making them a convenient choice for insulation in refinery heaters. Overall, insulating fire bricks are a suitable and effective option for insulation in refinery heaters.

Q: Can insulating fire bricks be cut or shaped as needed?: It is possible to cut or shape insulating fire bricks according to one's needs. These bricks are manufactured using lightweight materials like ceramic fibers and refractory materials, which make them more easily cut and shaped compared to traditional dense fire bricks. Cutting them can be done effortlessly using a saw or a specialized cutting tool, while shaping can be achieved through grinding, sanding, or chiseling. The ability to cut and shape them gives the advantage of custom fitting the insulating fire bricks to specific applications or structures. However, it is crucial to emphasize that precautions must be taken for safety while cutting or shaping the bricks. Wearing protective goggles, gloves, and a dust mask is essential in order to prevent inhaling any hazardous particles.

Q: Are insulating fire bricks easy to cut and shape?: Yes, insulating fire bricks are relatively easy to cut and shape. They are made of lightweight materials such as ceramic fibers, which can be easily cut using common tools like saws or knives. Additionally, their low-density composition allows for easier shaping and customization to fit specific requirements.

Q: Do insulating fire bricks have a high electrical resistivity?: Insulating fire bricks are generally characterized by their high electrical resistivity. This characteristic arises from their specific design, which aims to minimize thermal conductivity and maximize thermal resistance. Consequently, the insulating materials employed in these bricks, including alumina, silica, and other refractory materials, exhibit inherently high electrical resistivity. Moreover, the manufacturing procedures frequently incorporate the incorporation of insulating additives, thereby augmenting the electrical resistivity of the fire bricks. Consequently, insulating fire bricks prove to be highly effective in mitigating heat transfer and sustaining elevated temperatures across diverse industrial applications, such as kilns, furnaces, and thermal insulation systems.

Q: Can insulating fire bricks be used in outdoor applications?: Insulating fire bricks are specifically designed for high-temperature applications and are commonly used in indoor environments such as kilns, furnaces, and ovens. While they are not typically recommended for outdoor applications, there are certain circumstances where they can be used with caution. Insulating fire bricks are made from lightweight refractory materials that provide excellent insulation and heat resistance. However, they are not as durable or weather-resistant as other types of bricks, such as clay or concrete bricks, which are more suitable for outdoor use. In outdoor applications, insulating fire bricks may be exposed to harsh weather conditions, including rain, snow, extreme temperatures, and UV radiation, which can cause them to deteriorate and lose their insulating properties over time. Additionally, these bricks are more susceptible to cracking and damage due to thermal expansion and contraction caused by temperature fluctuations. If you need to use insulating fire bricks in an outdoor application, it is important to take extra precautions to protect them from the elements. This can include using weatherproof coatings or sealants to minimize water absorption and prevent damage from freezing and thawing cycles. It is also crucial to ensure proper drainage and ventilation to prevent moisture accumulation, as excessive moisture can compromise the insulation properties of these bricks. Overall, while insulating fire bricks can be used in outdoor applications under specific conditions, it is generally recommended to use more suitable materials for long-term durability and performance.

Q: Can insulating fire bricks be used in the construction of smelting crucibles?: Yes, insulating fire bricks can be used in the construction of smelting crucibles. Insulating fire bricks are designed to withstand high temperatures and provide excellent insulation. They are commonly used in applications that require heat retention and protection, such as kilns and furnaces. Smelting crucibles, which are used to melt and refine metals, also require materials that can withstand extreme temperatures. Insulating fire bricks are an ideal choice for constructing smelting crucibles because they can help maintain a consistent temperature within the crucible and prevent heat loss. Additionally, their insulating properties can reduce energy consumption and increase the efficiency of the smelting process.

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