Insulating Fire Brick - GJM Insulation Brick Insulating Brick

Insulating Fire Brick - GJM Insulation Brick Insulating Brick

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Loading Port:: Shanghai

Payment Terms:: TT or LC

Min Order Qty:: 1000 pc

Supply Capability:: 100000000 pc/month

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General information of Insulating Brick

Insulating firebricks are classified under tempera-ture between 1100C to 1700C, manufactured from high purity alumina clay.

Insulating fire bricks are made from high purity alumina and low iron content raw materials. The insulating fire bricks are produced by mixing, casting or extruding, drying, sintering and grinding. Our insulating fire bricks GJM23 temperature is 1260℃(2300℉). A variety of type could be done according to customer’s request.

To make our firebricks more energy and cost effective, we have different manufacturing methods for our insulating fire bricks casting and extruding method.

For insulating fire bricks GJM23,we choose the casting methord.The casting insulating fire bricks offering the lowest density, the lowest thermal conductivity for the application above 1000℃.

Application of Insulation brick

Insulating firebricks can be used as a hot face lining directly exposed to the heat or as a backup insulation layerin iron and steel mills, non-ferrous foundries, petrochemical, ceramic, glass.

Features of Insulation brick

◆Light weight and low thermal conductivity
◆Low heat storage
◆Low iron and impurities
◆High thermal shock resistance

Technical Data of GJM series Insulation brick

		JM23	JM26	JM28	JM30	JM32
Physical Properties:
Classifiction Temperature	℃	1260.0	1430.0	1500.0	1600.0	1650
Density	Kg/m3	550.0	850.0	900.0	1000.0	1100
Cold Crushing Strength	Mpa	1.2	2.0	2.5	2.8	3.5
Reheating Linear Change(24hrs)
1230℃	%	0.4
1300℃
1400℃	%		0.5
1510℃	%			0.6
1600℃	%				0.7
1650℃	%					0.8
Hot Load Strength Deform(90 minutes)
1100℃ at 0.034 Mpa（5psi）	%	0.1
1260℃ at 0.069 Mpa（10psi）	%		0.2
1320℃ at 0.069 Mpa（10psi）	%			0.3
1370℃ at 0.069 Mpa（10psi）	%				0.2	0.1
Thermal Conductivity
400℃	W/m.k	0.2	0.3	0.3	0.3	0.32
600℃	W/m.k	0.2	0.3	0.3	0.3	0.35
800℃	W/m.k	0.2	0.3	0.4	0.4	0.38
1000℃	W/m.k	0.2	0.3	0.4	0.4	0.42
1200℃	W/m.k		0.4	0.4	0.4	0.44
1400℃	W/m.k
Specific Heat	KJ/Kg.K	1.1	1.1	1.1	1.1	1.10
Chemical Analysis:
Al₂O₃	%	47.0	50.0	60.0	70.0	75.0
SiO₂	%	44.4	47.1	38.2	28.3	23.2
Fe₂O₃	%	0.9	0.7	0.6	0.5	0.5
TiO₂	%	1.2	0.1	0.1	0.1	0.1
CaO	%	5.2	0.1	0.1	0.1	0.1
MgO	%	0.3	0.2	0.1	0.1	0.1
Na₂O+K₂O	%	1.1	1.7	0.8	0.7	0.6

Technical Data of B series Insulation Brick

		B-1	B-2	B-3	B-4	B-5	B-6	B-7
Physical Properties:
Density	g/cm3	0.7	0.7	0.75	0.80	0.80	0.90	1.00
Cold Crushing Strength	Mpa	2.5	2.5	2.5	2.5	2.5	3.0	3.0
Thermal Conductivity 350℃	W/m.k	0.17	0.18	0.20	0.22	0.23	0.27	0.31

Technical Data of C series Insulation Brick

		C-1	C-2	C-3
Physical Properties:
Density	g/cm3	1.1	1.2	1.3
Cold Crushing Strength	Mpa	5.0	7.0	10.0
Thermal Conductivity 350℃	W/m.k	0.30	0.38	0.45

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INSULATION BRICK

INSULATING BRICK

Q: Are insulating fire bricks resistant to high-pressure environments?: Insulating fire bricks are not specifically designed to withstand high-pressure environments. While they are known for their excellent thermal insulation properties and resistance to high temperatures, their ability to withstand pressure is limited. Insulating fire bricks are typically used in low-pressure applications where their insulating properties are more important than their ability to withstand pressure. If a high-pressure environment is a concern, it is recommended to use other types of refractory bricks specifically designed for such conditions, like dense fire bricks or high-alumina bricks, which offer superior strength and resistance to pressure.

Q: Can insulating fire bricks be used in cryogenic applications?: Insulating fire bricks, also known as refractory bricks, are primarily designed for high-temperature applications and are commonly used in furnaces and kilns. However, when it comes to cryogenic applications, where extremely low temperatures are involved, insulating fire bricks may not be the most suitable choice. Cryogenic temperatures, typically below -150 degrees Celsius (-238 degrees Fahrenheit), pose unique challenges for materials due to the severe thermal stresses they experience. Insulating fire bricks are typically composed of materials such as alumina and silica, which have limited thermal shock resistance and can become brittle at very low temperatures. This brittleness can lead to cracking and failure when exposed to cryogenic conditions. Additionally, insulating fire bricks have relatively high thermal conductivity, which means they can conduct heat relatively well. In cryogenic applications, where minimizing heat transfer is crucial, materials with lower thermal conductivity are preferred. Therefore, insulating fire bricks, with their higher thermal conductivity, may not be the most efficient choice for cryogenic applications. Instead, materials with excellent thermal insulation properties and low thermal conductivity, such as aerogels or foams made from materials like silica or carbon, are often preferred for cryogenic applications. These materials offer superior thermal insulation and better resistance to extreme temperatures, ensuring the efficient and reliable performance required in cryogenic environments. In summary, while insulating fire bricks are suitable for high-temperature applications, they may not be the best choice for cryogenic applications due to their brittleness at low temperatures and relatively high thermal conductivity. Materials specifically designed for cryogenic conditions, such as aerogels or foams, are more suitable for these extreme temperature environments.

Q: Can insulating fire bricks be used for insulation in ovens and kilns?: Insulating fire bricks are indeed suitable for insulation in ovens and kilns. These bricks are specially designed to withstand high temperatures and offer exceptional thermal insulation. They are composed of lightweight materials such as clay and other refractory substances with low thermal conductivity. Consequently, they possess the ability to effectively retain heat and prevent its escape, making them an ideal choice for ovens and kilns where heat retention is of utmost importance. Furthermore, insulating fire bricks possess resistance against thermal shock, enabling them to endure rapid temperature changes without cracking or breaking. Ultimately, insulating fire bricks guarantee efficient heat distribution and energy conservation, making them a reliable option for insulating ovens and kilns.

Q: Is it possible to recycle used insulating fire bricks?: It is indeed feasible to recycle insulating fire bricks that have been used. Insulating fire bricks consist of a range of materials, including alumina, silica, and other refractory materials. These materials can be dismantled and utilized again in the creation of fresh bricks or alternative refractory products. The recycling of used insulating fire bricks aids in the reduction of the need for fresh raw materials and the mitigation of waste. Nevertheless, it is crucial to acknowledge that not all recycling centers or facilities may accept insulating fire bricks. It is therefore advisable to verify with local recycling programs or specialized recycling companies that handle refractory materials.

Q: Can insulating fire bricks be used in high-temperature insulation panels?: Yes, insulating fire bricks can be used in high-temperature insulation panels. Insulating fire bricks are designed to withstand high temperatures and provide excellent thermal insulation. They are made from lightweight refractory materials that have low thermal conductivity, allowing them to effectively reduce heat transfer. These bricks can be used in various applications, including furnaces, kilns, and high-temperature insulation panels. They are capable of withstanding temperatures up to 3000°F (1650°C) and can effectively retain heat, making them an ideal choice for high-temperature insulation panels.

Q: Can insulating fire bricks be used in the construction of pottery wheels?: Insulating fire bricks are indeed applicable for pottery wheel construction. These bricks are specifically engineered to withstand elevated temperatures and offer exceptional insulation, thus rendering them suitable for diverse applications in the pottery sector. By incorporating these bricks into pottery wheel construction, one can effectively retain heat, resulting in more uniform and regulated firing of pottery. Furthermore, their insulating characteristics aid in reducing heat dissipation and enhancing energy efficiency during the operation of the pottery wheel. In summary, the utilization of insulating fire bricks in pottery wheel construction is widely favored due to their capacity to endure high temperatures and provide insulation, which makes them an ideal material for this purpose.

Q: Can insulating fire bricks be used in fireplaces?: Yes, insulating fire bricks can be used in fireplaces. Insulating fire bricks are specifically designed to withstand high temperatures and provide excellent insulation, making them suitable for use in fireplaces. They are capable of withstanding temperatures up to 3000°F (1650°C), which is well within the operating range of most fireplaces. These bricks are made from special materials that have low thermal conductivity, allowing them to retain heat and prevent it from escaping the fireplace. This insulation property helps to improve the efficiency of the fireplace by keeping the heat inside the firebox and preventing it from dissipating into the surrounding area. Additionally, insulating fire bricks are lightweight, durable, and easy to install, making them a popular choice for fireplace construction or renovation projects.

Q: Do insulating fire bricks emit any toxic fumes when heated?: Insulating fire bricks, also referred to as refractory bricks, have been designed to endure high temperatures and are commonly utilized in furnaces and kilns. These bricks are constructed from materials with low thermal conductivity, thus impeding the transfer of heat easily. When subjected to heat, insulating fire bricks do not discharge any toxic fumes. This is due to their composition, typically consisting of non-toxic substances like clay or silica. These materials possess chemical stability and do not release any harmful gases or substances when exposed to elevated temperatures. It is significant to acknowledge that although insulating fire bricks themselves do not emit toxic fumes, the substances undergoing heating inside the furnace or kiln may generate fumes or gases that could pose health hazards. Therefore, it is vital to adequately ventilate the area and adhere to safety guidelines when working with any materials that could release toxic fumes during the heating process. In conclusion, insulating fire bricks, made from non-toxic materials, do not emit toxic fumes when heated. Nevertheless, it is essential to ensure proper ventilation and follow safety precautions when working with materials that may emit hazardous fumes.

Q: What temperature can insulating fire bricks withstand?: Insulating fire bricks can withstand temperatures up to 3000°F (1650°C).

Q: Can insulating fire bricks be used in the construction of industrial boilers?: Yes, insulating fire bricks can be used in the construction of industrial boilers. These bricks are designed to withstand high temperatures and provide excellent insulation, making them ideal for use in boiler systems where heat retention and efficiency are crucial. They help to prevent heat loss and ensure efficient energy transfer, making them a popular choice for industrial boiler applications.

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