refractory brick used for steel/cement/glass
- Ref Price:
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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:What is the typical thermal shock resistance of an insulating fire brick?
- The thermal shock resistance of an insulating fire brick can vary based on its specific composition and manufacturing process. However, in general, insulating fire bricks are designed to possess high thermal shock resistance. These bricks are often made from lightweight materials like alumina, silica, and other refractory compounds, which exhibit excellent thermal insulation properties. Insulating fire bricks are engineered to endure rapid temperature changes without cracking or breaking. They can typically withstand thermal shocks caused by sudden exposure to extreme heat or cold, as well as rapid heating or cooling cycles. The thermal shock resistance of insulating fire bricks is crucial in applications where they are subjected to fluctuating temperatures, such as furnaces, kilns, and other high-temperature environments. While there is no universally standardized value for the thermal shock resistance of insulating fire bricks, they are typically designed to endure thermal shocks of several hundred degrees Celsius without significant damage. Some high-quality insulating fire bricks can even tolerate thermal shocks of 1000°C or more. It is important to note that the specific thermal shock resistance of an insulating fire brick may also depend on factors like its thickness, density, and overall quality. Therefore, it is advisable to refer to the manufacturer's specifications or conduct specific tests to determine the precise thermal shock resistance of a particular insulating fire brick.
- Q:Can insulating fire bricks be used as a structural material?
- No, insulating fire bricks are not typically used as a structural material. They are mainly employed for their high thermal insulation properties and are not designed to bear significant structural loads.
- Q:Can insulating fire bricks be used for insulation in smelters?
- Yes, insulating fire bricks can be used for insulation in smelters. Insulating fire bricks are designed to withstand high temperatures and provide excellent insulation properties, making them suitable for use in smelting operations where heat containment is crucial to optimize energy efficiency and protect the surrounding environment.
- Q:What is the lifespan of insulating fire bricks?
- The lifespan of insulating fire bricks can vary depending on various factors such as the quality of the bricks, the conditions they are exposed to, and the usage. However, on average, insulating fire bricks can last anywhere from 5 to 20 years.
- Q:Do insulating fire bricks emit any harmful gases when heated?
- No, insulating fire bricks do not emit any harmful gases when heated. They are specifically designed to have excellent thermal insulation properties without releasing any harmful emissions.
- Q:Are insulating fire bricks resistant to thermal radiation?
- Yes, insulating fire bricks are resistant to thermal radiation. These bricks are specifically designed to have excellent thermal insulation properties, which means they can effectively resist and minimize the transfer of heat by radiation. Insulating fire bricks are typically made from materials such as alumina, silica, or fire clay, which have high melting points and low thermal conductivity. This combination of properties allows them to withstand high temperatures and prevent the flow of thermal energy through radiation, making them a suitable choice for applications where thermal insulation is required, such as kilns, furnaces, and fireplaces.
- Q:Do insulating fire bricks require any special firebrick mortar for installation?
- Yes, insulating fire bricks do require a special firebrick mortar for installation. These bricks have a lower density and higher insulating properties, so using a regular mortar can compromise their performance. It is recommended to use a specialized firebrick mortar that can withstand high temperatures and bond effectively with the insulating fire bricks to ensure a proper and durable installation.
- Q:Are insulating fire bricks resistant to alkali attack?
- Insulating fire bricks generally possess resistance to alkali attack. They are composed of high-temperature refractory materials and are engineered to endure extreme temperatures and chemical surroundings. Alkalis typically corrode and deteriorate certain substances, but insulating fire bricks are specifically devised to withstand this form of chemical assault. They possess limited porosity and a compact structure, thereby thwarting alkalis from infiltrating the brick's surface. Furthermore, the refractory materials employed in these bricks possess a high melting point and exhibit chemical inertness, rendering them ideal for situations where exposure to alkali is a concern. However, it is crucial to acknowledge that the resistance of insulating fire bricks to alkali attack may vary depending on the brick's composition, manufacturing process, as well as the concentration and duration of alkali exposure. Thus, it is always advisable to consult the manufacturer or supplier for comprehensive details regarding the alkali resistance of their specific insulating fire bricks.
- Q:Can insulating fire bricks be used in aluminum furnaces?
- Indeed, aluminum furnaces can utilize insulating fire bricks. These bricks are specifically engineered to possess exceptional thermal insulation characteristics, rendering them ideal for deployment in high-temperature settings like aluminum furnaces. Their capacity to endure the intense heat generated during aluminum melting and their ability to preserve heat within the furnace contribute to enhanced energy efficiency. Moreover, insulating fire bricks offer additional benefits such as shielding against heat dissipation, mitigating the likelihood of overheating, and facilitating a more steady and regulated heating procedure.
- Q:Can insulating fire bricks be used in rocket stove designs?
- Yes, insulating fire bricks can be used in rocket stove designs. Rocket stoves are known for their efficient combustion and heat transfer, and insulating fire bricks can enhance this performance. These bricks are made from lightweight materials that have high insulating properties, allowing them to retain and reflect heat efficiently. In a rocket stove, the combustion chamber is typically lined with insulating fire bricks to maximize the heat transfer to the cooking surface or space being heated. The bricks help to retain heat within the combustion chamber, ensuring that more of the energy from the burning fuel is used to heat the cooking surface rather than being lost to the environment. Additionally, insulating fire bricks can withstand high temperatures, making them ideal for rocket stove designs. They are designed to handle the intense heat produced by the combustion process, ensuring the bricks won't crack or break under these conditions. Overall, using insulating fire bricks in rocket stove designs can improve the stove's efficiency and heat transfer, resulting in a more effective and sustainable cooking or heating solution.
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refractory brick used for steel/cement/glass
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 30 m.t.
- Supply Capability:
- 10000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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