Insulating Fire Brick - Refractory Insulating Fire Brick Code GJM23
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- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 m.t.
- Supply Capability:
- 30000 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.
Technical Data
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 | --- |
- Q: Are insulating fire bricks safe to use in contact with food or beverages?
- Using insulating fire bricks in direct contact with food or beverages is not recommended due to safety concerns. These bricks, typically composed of materials like silica and alumina, are primarily used for their ability to withstand high temperatures and provide efficient insulation. While they are commonly utilized in industrial settings like kilns and furnaces, their suitability for food preparation or consumption is limited. When exposed to high temperatures, insulating fire bricks can release harmful substances, especially if they have not been properly cured or if they come into direct contact with food or beverages. These substances may include small amounts of heavy metals or other toxic compounds, which can pose health risks if consumed. To ensure the safety of food and beverages, it is advisable to opt for materials specifically designed for contact with food, such as food-grade stainless steel, glass, or ceramic. These materials are non-reactive and do not release any harmful substances when exposed to high temperatures. It is vital to prioritize the health and well-being of individuals by using appropriate materials for food and beverage preparation.
- Q: How shall the sintered porous self insulation bricks be laid at the bottom of the beam?
- All reserved holes larger than 200 * 200 shall be reserved
- Q: Are insulating fire bricks suitable for use in thermal shock applications?
- Insulating fire bricks prove to be appropriate for thermal shock applications. Specifically designed to endure sudden temperature variations without any cracks or breaks, they possess a low thermal conductivity and a high thermal resistance, making them an optimal choice for concerns related to thermal shock. Comprised of lightweight refractory materials, these bricks often contain a significant amount of alumina or silica, which grants them exceptional thermal stability and resistance to thermal shock. Their utilization can be seen in a wide range of high-temperature scenarios, including kilns, furnaces, and fireplaces, where they face extreme temperature fluctuations. Ultimately, insulating fire bricks demonstrate their suitability for thermal shock applications by effectively enduring abrupt temperature changes and maintaining their structural integrity.
- Q: What is the typical cost of insulating fire bricks?
- The typical cost of insulating fire bricks can vary depending on several factors such as the size, quality, and quantity needed. On average, you can expect to pay anywhere between $2 to $10 per brick. However, keep in mind that this is just a general range, and prices can be higher or lower depending on where you purchase them from and the specific requirements of your project. It is always a good idea to compare prices from different suppliers to ensure you are getting the best deal.
- 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 in high-temperature kilns and furnaces?
- Yes, insulating fire bricks can be used in high-temperature kilns and furnaces. Insulating fire bricks are specially designed to withstand extreme heat and provide excellent insulation properties. They are made from lightweight refractory materials, such as clay and silica, which have high melting points and low thermal conductivity. These bricks can effectively retain heat, reducing energy loss and improving the efficiency of the kiln or furnace. Additionally, insulating fire bricks have good resistance to thermal shock, meaning they can handle rapid temperature changes without cracking or breaking. This makes them suitable for use in high-temperature applications where the kiln or furnace may go through frequent heating and cooling cycles. Overall, insulating fire bricks are an ideal choice for insulating and protecting high-temperature kilns and furnaces.
- Q: Can insulating fire bricks be used in ladles?
- Certainly! Ladles can indeed utilize insulating fire bricks. These bricks are specifically engineered to endure extreme temperatures while offering thermal insulation. They find frequent application in situations where the maintenance or regulation of high temperatures is necessary, like furnaces, kilns, and ladles. Ladles are employed for the purpose of pouring and transferring molten metal or other substances. By incorporating insulating fire bricks into ladles, heat loss is reduced and energy efficiency is enhanced. Moreover, these bricks serve as a safeguard against chemical reactions and erosion stemming from the molten materials, thus qualifying them as suitable for ladle usage.
- Q: Can insulating fire bricks be used in foundries?
- Yes, insulating fire bricks can be used in foundries. They are commonly used as lining materials for various high-temperature applications, including foundries. Insulating fire bricks provide excellent thermal insulation, reducing heat loss and improving energy efficiency in the foundry process. Additionally, they have good resistance to thermal shock and can withstand the extreme temperatures and harsh conditions often found in foundry environments.
- Q: How do insulating fire bricks provide insulation against heat transfer?
- Insulating fire bricks provide insulation against heat transfer through their unique composition and structure. These bricks are made from lightweight refractory materials that have low thermal conductivity, meaning they do not conduct heat well. Additionally, they have a high porosity, which creates air pockets within the brick. These air pockets act as insulators, reducing heat transfer by conduction and convection. Overall, the combination of low thermal conductivity and high porosity in insulating fire bricks effectively prevents heat from passing through, providing insulation against heat transfer.
- Q: How do insulating fire bricks handle moisture?
- Insulating fire bricks are designed to handle moisture in a specific way. These bricks are made of high-grade refractory materials, which have low porosity. This low porosity helps to prevent the absorption of moisture into the bricks. Additionally, insulating fire bricks have a dense structure and are often coated with a protective sealant or glaze, further reducing their susceptibility to moisture. This combination of low porosity and protective coating allows the bricks to resist the harmful effects of moisture, such as cracking, deterioration, or loss of insulating properties. Overall, insulating fire bricks are designed to effectively handle moisture, ensuring their durability and performance in various high-temperature applications.
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Insulating Fire Brick - Refractory Insulating Fire Brick Code GJM23
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 m.t.
- Supply Capability:
- 30000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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