Insulating Fire Brick with Anti-Permeability Carbon

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Magnesia Carbon brick is resin-bonded brick made from dead-burned or fused magnesia and graphite. Anti-oxidant is added if required. Magnesia Carbon brick has good performance in thermal resistance, corrosion resistance and spalling resistance. Widely used in converters, EAFs, ladles and refining furnaces.

Magnesia Carbon brickis a very mature product in our area. As our area has 1/4 world storage of best quality Magnesia ore, we can provide as good quality as European Mg-C bricks with competitive prices. We also provide basic refracotry lining solution for CONVERTER, EAF, LF, LADLE, etc. these industrial furnaces.

The following are typial properties as per Chinese latest version standard. We also provide customer-tailored products as per customer special reuirements.

Specification

Sl. No.	MT10A	MT10B	MT10C	MT14A	MT14B	MT14C	MT18A	MT18B	MT18C
A.P. %	2	3	4	2	3	4	1	2	3
B.D. g/cm3	3.04	2.97	2.93	2.99	2.94	2.90	2.95	2.91	2.88
CCS MPa	40.2	34.8	29.8	35.6	30.5	26.7	32.8	27.3	25.3
Bending strength mpa 1400×30min	11.8	9.6	8.2	13.4	11.90	8.8	13.8	11.4	9.3
MgO %	81.34	80.10	78.73	78.16	76.53	75.24	73.68	71.99	70.56
C %	11.43	11.72	11.18	15.90	15.65	15.87	19.82	19.76	19.41
SiO2 %	0.91	0.97	1.04	0.98	0.96	1.05	0.99	0.96	1.08
Fe2O3 %	0.43	0.48	1.56	0.42	0.47	1.57	0.41	0.47	1.60
CaO %	1.25	1.24	1.38	1.24	1.25	1.37	1.26	1.25	1.36

Fused megnesia specification.

BRAND	CHEMICAL PROPERTY %					B.D. OF GRAIN > g/cm3
BRAND	MgO >	SiO2<	CaO<	Fe2O3<	Al2O3<	B.D. OF GRAIN > g/cm3
FM990	99.0	0.3	0.8	0.3	0.2	3.50
FM985	98.5	0.4	1.0	0.4	0.2	3.50
FM980	98.0	0.6	1.2	0.6	0.2	3.50
FM975	97.5	1.0	1.4	0.7	0.2	3.45
FM970	97.0	1.5	1.5	0.8	0.3	3.45
FM960	96.0	2.2	2.0	0.9	0.3	3.35

Q: Masonry method for boiler refractory brick: Furnace wall gas tightness requirements, gray seam fullness requirements: red brick is not less than 85%; refractory brick not less than 90%. When the red brick is built, the method of squeezing is adopted, and the construction of the refractory brick is constructed by scraping.

Q: Can insulating fire bricks be used in the construction of crucibles?: Yes, insulating fire bricks can be used in the construction of crucibles. These bricks are designed to withstand high temperatures and provide excellent insulation, making them suitable for use in crucibles where extreme heat is required.

Q: What is the difference between cement foamed thermal insulation board and thermal insulating brick?: Of course, the market now has a lot of insulation bricks, and some insulation bricks can only do external wall insulation, such as sand, aerated concrete blocks. Some also only do the interior wall insulation, such as gray aerated concrete blocks, and some insulation bricks directly to the base, thus omitting the internal and external insulation, such as concrete composite insulation block.

Q: Can insulating fire bricks be used in the construction of combustion chambers?: The use of insulating fire bricks in combustion chambers is highly recommended. These bricks are created using lightweight, porous materials that possess exceptional thermal insulation capabilities. As a result, they are extremely suitable for high-temperature applications like combustion chambers, where their insulation aids in the containment and regulation of heat generated during the combustion process. The heat transfer resistance of insulating fire bricks is notably high, enabling them to effectively retain heat within the combustion chamber. This, in turn, enhances combustion process efficiency by minimizing heat loss to the surrounding environment. Moreover, these bricks' insulating properties help prevent the outer walls of the combustion chamber from overheating, thereby reducing the risk of structural damage. Furthermore, insulating fire bricks are specifically designed to endure elevated temperatures, rendering them highly durable and resilient. This is particularly crucial in combustion chambers, where intense heat and varying temperatures are commonplace. Their ability to withstand thermal shock and thermal cycling makes them a dependable choice for this purpose. To summarize, insulating fire bricks are an exceptional option for constructing combustion chambers due to their thermal insulation properties, heat retention ability, and resistance to high temperatures. They significantly contribute to the overall efficiency and safety of the combustion process, making them an invaluable component in combustion chamber construction.

Q: What is the recommended curing time for insulating fire bricks?: The recommended curing time for insulating fire bricks can vary depending on several factors such as the type of brick, the specific application, and the manufacturer's instructions. However, in general, it is advisable to allow a curing time of at least 24 to 48 hours for insulating fire bricks. This allows the bricks to dry and harden properly, ensuring their stability and performance in high-temperature environments. It is important to follow the manufacturer's guidelines and recommendations for curing time to achieve the best results. Additionally, factors such as humidity, temperature, and ventilation can also influence the curing process, so it is important to consider these factors when determining the appropriate curing time for insulating fire bricks.

Q: Are insulating fire bricks resistant to pests or rodents?: Insulating fire bricks are not specifically designed or treated to be resistant to pests or rodents. While the dense nature of these bricks may make it more difficult for pests or rodents to chew through them compared to other materials, they are not completely immune to infestations. If you are concerned about pests or rodents, it is advisable to take additional measures such as sealing any gaps or cracks in the brickwork, ensuring proper ventilation, and implementing pest control methods as needed.

Q: Are insulating fire bricks easy to handle and install?: Insulating fire bricks are generally easy to handle and install. They are lightweight, making them easy to transport and carry around. Additionally, their shape and size are designed to be user-friendly, allowing for easy manipulation and installation. Most insulating fire bricks come with pre-drilled holes or grooves, which further simplifies the installation process. Moreover, these bricks can be easily cut or shaped to fit specific dimensions or requirements, making them highly versatile. Overall, insulating fire bricks are considered easy to handle and install, even for individuals with limited experience or knowledge in masonry work.

Q: Can insulating fire bricks be used in the construction of autoclaves?: Yes, insulating fire bricks can be used in the construction of autoclaves. Autoclaves require materials that can withstand high temperatures and pressures, and insulating fire bricks are designed to have excellent thermal resistance and insulation properties. These bricks are made from refractory materials like alumina, silica, and other additives that allow them to withstand extreme temperatures and thermal shocks. They are also lightweight and have low thermal conductivity, which helps to minimize heat loss and improve energy efficiency in autoclaves. Additionally, insulating fire bricks have good load-bearing capacity, making them suitable for the structural components of autoclaves. Overall, the use of insulating fire bricks in the construction of autoclaves helps to ensure the safety and efficiency of the equipment.

Q: Can insulating fire bricks be used in the construction of glass melting furnaces?: Insulating fire bricks are indeed applicable for constructing glass melting furnaces. These bricks are specifically designed to possess exceptional heat resistance and endure exceedingly high temperatures. Their low thermal conductivity allows for efficient heat retention and minimal heat loss. In glass melting furnaces, where temperatures can reach up to 1600°C (2912°F) or even higher, insulating fire bricks serve a pivotal role in maintaining the desired temperature within the furnace. By utilizing these bricks as the lining for the furnace, the heat generated during the melting process can be effectively contained, resulting in improved energy efficiency and reduced heat loss. Additionally, insulating fire bricks are lightweight and exhibit remarkable thermal shock resistance, making them highly suitable for glass melting furnaces that experience sudden temperature fluctuations. This ensures that the bricks will not crack or break under the extreme conditions present in the furnace. Overall, incorporating insulating fire bricks into the construction of glass melting furnaces offers superior insulation, energy efficiency, and durability, rendering them an ideal choice for this application.

Q: How do insulating fire bricks differ from regular fire bricks?: Insulating fire bricks differ from regular fire bricks in terms of their composition and thermal properties. Insulating fire bricks are made from lightweight materials such as expanded clay, vermiculite, or perlite, which have high insulating properties. They have lower density and higher porosity compared to regular fire bricks, allowing them to retain heat better and provide superior insulation. Regular fire bricks, on the other hand, are made from dense materials like clay or silica, which provide better structural strength but have lower insulation capabilities.

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