Insulating Fire Brick for Steel, Cement, and Glass Industries

Insulating Fire Brick for Steel, Cement, and Glass Industries System 1

Insulating Fire Brick for Steel, Cement, and Glass Industries

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 30 m.t.

Supply Capability:: 10000 m.t./month

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CNBM conforms strictly to the requirements of ISO 9000 quality control system during the production. MSDS is also available if you want. The thermal insulation fire clay brick meet with the requirements of ASTM & JIS standards. So pls stay cool with our quality.

Brief discription for Alumina Fire Brick

CNBM Alumina Fire Brick are classified according to alumina content ranging from 48% to 90%.

CNBM Alumina Fire Brick are commonly used in blast furnace, hot blast furnace, the roof of electric furnace, teeming ladle, rotary kiln, regenerator, etc.

Brief features for Alumina Fire Brick

◆Low thermal conductivity

◆Excellent acid and base slagging resistance

◆High refractoriness

◆Excellent thermal shock resistance

◆Excellent mechanical strength

◆Good spalling resistance and wear resistance.

◆Good corrosion resistance.

◆High-temperature creep rate is quite low.

◆Good volume stability at high temperature.

◆Low bulk density, low thermal conductivity, good thermal insulation performance.

Technical data for high aluminia bricks

ITEM	UAL48	UAL55	UAL65	UAL75	UAL80	UAL85	ALP80
Refractoriness, ℃	1750	1770	1790	1790	1810	1810	1810
Apparent Porosity,%	22	22	23	23	20	20	18
C.C.S, Mpa	39	44	49	53	55	60	100
Refractories Under Load (0.2Mpa)，℃	1420	1470	1500	1520	1500	1520	1550
Reheating Linear Change,%	1450℃x2h 0.1～-0.4	1500℃x2h 0.1～-0.4	1500℃x2h 0.1～-0.4	1500℃x2h 0.1～-0.4	1550℃x2h -0.5～+0.5	1550℃x2h -0.5～+0.5	1550℃x2h -0.5～+0.5
Al₂O₃ Content , %	48	55	65	75	80	85	82

Why us

Professional fire brick manufacturer. We have being specialized in producing refractory fireclay brick for more than 40 years so that we can guarantee a stable quality.

Guaranteed quality. Our production process conforms strictly to the requirements of ISO9000 quality management system. Quality inspection is carried out in every links of our production. SGS third party inspection is available.

Sound after sales service. We provide sound after sales service. We provide 24 hours’ consultation service. We are ready to answer your consultations at any time.

Q: Can insulating fire bricks be used in kilns?: Yes, insulating fire bricks can be used in kilns. Insulating fire bricks are designed to withstand high temperatures and provide excellent insulation, making them ideal for use in kilns. They have a low thermal conductivity, which helps to retain the heat generated within the kiln, ensuring efficient and uniform heating. Additionally, insulating fire bricks are lightweight, which makes them easy to handle and install in kilns. They are also resistant to thermal shock, meaning they can withstand rapid changes in temperature without cracking or breaking. Overall, insulating fire bricks are a reliable and effective choice for use in kilns.

Q: Are insulating fire bricks resistant to flame spread?: Yes, insulating fire bricks are resistant to flame spread.

Q: Can insulating fire bricks be used in applications involving molten metal?: Yes, insulating fire bricks can be used in applications involving molten metal. Insulating fire bricks are made from lightweight refractory materials that have excellent thermal insulation properties. They are capable of withstanding high temperatures and can provide insulation and protection against heat transfer. In applications involving molten metal, insulating fire bricks can be used as linings for furnaces, crucibles, and other equipment to prevent heat loss and maintain the desired temperature. They can also act as a barrier between the molten metal and the structural components, preventing damage or contamination. However, it is important to note that the suitability of insulating fire bricks for a specific molten metal application may depend on factors such as the temperature, type of metal, and the specific requirements of the process.

Q: Are insulating fire bricks resistant to fire?: Yes, insulating fire bricks are indeed resistant to fire. These bricks are specially designed and manufactured to withstand high temperatures and provide excellent insulation properties. Insulating fire bricks are made from lightweight refractory materials, such as ceramic fibers or expanded clay, which have low thermal conductivity and high melting points. This allows them to effectively retain heat and protect against extreme temperatures. They are commonly used in applications where high temperatures are present, such as in furnaces, kilns, and fireplaces. Overall, insulating fire bricks are specifically engineered to be highly fire resistant and are an ideal choice for insulating against heat and preventing the spread of fire.

Q: Can insulating fire bricks be used in contact with molten metal?: Yes, insulating fire bricks can be used in contact with molten metal. Insulating fire bricks are specially designed to withstand high temperatures and are commonly used in industrial applications where they come into contact with molten metal. These bricks have a high resistance to thermal shock and are able to withstand the intense heat generated by molten metal. Additionally, insulating fire bricks have low thermal conductivity, which helps to minimize heat loss and improve energy efficiency. However, it is important to ensure that the specific type of insulating fire brick being used is suitable for the particular type of molten metal and the temperature range it will be exposed to, as different metals have different melting points and may require more specialized refractory materials.

Q: Are insulating fire bricks suitable for insulation in walls?: Typically, insulating fire bricks are unsuitable for wall insulation. Although they excel in high-temperature settings, like furnaces or kilns, their insulation capabilities for walls are limited. Insulating fire bricks possess lower thermal conductivity than regular bricks, resulting in slower heat conduction. Nevertheless, they are not as effective as wall-specific insulation materials such as fiberglass, foam boards, or mineral wool. These materials are engineered to offer superior insulation properties, including higher R-values that measure resistance to heat transfer. Furthermore, insulating fire bricks tend to be pricier and heavier compared to other insulation options, making them less practical for wall insulation. Therefore, while insulating fire bricks do have advantages in certain applications, they are generally not the optimal choice for wall insulation.

Q: Can insulating fire bricks be used for insulation in solar thermal systems?: Indeed, insulation in solar thermal systems can be achieved by utilizing insulating fire bricks. These bricks have been specifically engineered to possess a low thermal conductivity, enabling them to effectively capture and retain heat. As a result, they prove to be suitable for insulating various components of a solar thermal system, including the solar collector and storage tank, thereby minimizing heat dissipation and enhancing the system's overall efficiency. Furthermore, insulating fire bricks exhibit remarkable resistance to high temperatures, a critical characteristic in solar thermal systems where extreme temperatures can be encountered. In summary, the utilization of insulating fire bricks as insulation in solar thermal systems serves to enhance performance and diminish energy loss.

Q: Can insulating fire bricks be used in high-temperature ducts?: Yes, insulating fire bricks can be used in high-temperature ducts. Insulating fire bricks are designed to withstand high temperatures and provide thermal insulation, making them suitable for use in ducts where high temperatures are present.

Q: Do insulating fire bricks require preheating before use?: Insulating fire bricks typically need to be preheated prior to use for several reasons. Firstly, preheating helps eliminate any moisture or volatile organic compounds that may be present in the bricks. This is crucial as the presence of moisture or volatile compounds can lead to cracking or even explosions when the bricks are exposed to high temperatures. Additionally, preheating allows the bricks to be conditioned and prevents thermal shock, which can occur when the bricks are rapidly exposed to extreme temperatures. By gradually increasing the temperature, the bricks are able to expand and contract without sustaining any damage. Therefore, it is highly recommended to preheat insulating fire bricks before using them to ensure their durability and optimal performance.

Q: Are insulating fire bricks suitable for insulation in chemical reactors?: Due to their exceptional thermal properties and resistance to high temperatures, insulating fire bricks are commonly employed for insulation in chemical reactors. These bricks, which are manufactured from lightweight refractory materials like alumina, silica, and other minerals, effectively impede heat transfer and provide insulation. Furthermore, they possess low thermal conductivity and high heat capacity, enabling them to minimize heat loss and maintain consistent temperatures within the reactor. Chemical reactors often operate at elevated temperatures and may contain corrosive or reactive substances. Insulating fire bricks can withstand these harsh conditions and safeguard the reactor against external heat sources. They are chemically inert and corrosion-resistant, making them suitable for use with various chemicals and reactants. Additionally, insulating fire bricks exhibit a low thermal expansion coefficient, allowing them to endure thermal cycling without cracking or distorting. This characteristic is crucial in chemical reactors where temperature fluctuations are frequent and can potentially harm the equipment. In conclusion, insulating fire bricks are a popular choice for insulation in chemical reactors due to their thermal insulation properties, resistance to chemicals, and ability to withstand high temperatures and thermal cycling. Their usage aids in enhancing the efficiency and safety of chemical processes by maintaining optimal operating conditions within the reactor.

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