Low Conductivity Mullite Refractory Birck
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 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 heat treatment furnaces?
- Indeed, heat treatment furnaces can make use of insulating fire bricks. These bricks are specifically engineered to possess a low thermal conductivity, enabling them to endure elevated temperatures while minimizing the dissipation of heat. This quality renders them ideal for deployment in heat treatment furnaces, where the preservation of a stable temperature is vital for the triumphant execution of the heat treatment procedure. Moreover, insulating fire bricks exhibit exceptional insulating attributes, thereby curtailing energy usage and enhancing the overall efficiency of the heat treatment furnace. Consequently, the utilization of insulating fire bricks in heat treatment furnaces is a prevalent practice across diverse industries.
- Q:Are insulating fire bricks resistant to phosphoric acid?
- Phosphoric acid, being a strong acid, has the potential to react with and corrode various materials, including fire bricks. Although certain fire bricks may possess a degree of resistance to acidic conditions, insulating fire bricks are generally not equipped to endure prolonged exposure to phosphoric acid without experiencing notable deterioration. As a result, it is advisable to employ acid-resistant materials like acid-resistant bricks or linings when handling phosphoric acid or other potent acids.
- Q:Can insulating fire bricks be used in the construction of crucible furnaces?
- Yes, insulating fire bricks can be used in the construction of crucible furnaces. These bricks are designed to withstand high temperatures and provide excellent insulation, making them ideal for lining the walls of crucible furnaces. They help to retain heat, reduce energy consumption, and ensure efficient melting and casting processes.
- Q:How do insulating fire bricks affect the overall thermal efficiency of a building?
- Insulating fire bricks can greatly enhance the thermal efficiency of a building by providing excellent insulation properties. These bricks have low thermal conductivity, which means they can effectively reduce heat transfer through the walls and floors. By using insulating fire bricks, the building can retain more heat during cold weather and prevent heat from entering during hot weather, resulting in reduced energy consumption for heating and cooling.
- Q:Are insulating fire bricks resistant to warping?
- Yes, insulating fire bricks are resistant to warping. They are specifically designed to have high thermal stability and low thermal conductivity, which helps to prevent warping even under high temperatures.
- Q:Do insulating fire bricks require special storage conditions?
- Insulating fire bricks do not necessarily require special storage conditions, but it is recommended to store them in a dry, cool, and well-ventilated area. These bricks are made of lightweight materials that are designed to resist high temperatures and insulate heat. However, excessive moisture or exposure to extreme temperatures may affect their performance and durability. It is advisable to protect the bricks from direct sunlight or rain, as prolonged exposure to these elements might cause damage. Additionally, storing the bricks in an organized manner, away from sharp objects or heavy loads, can prevent any potential breakage or deformation. Overall, while special storage conditions may not be mandatory, taking proper precautions can help preserve the quality and longevity of the insulating fire bricks.
- Q:What is the typical cost of insulating fire bricks?
- The typical cost of insulating fire bricks ranges from $2 to $5 per brick, depending on the quality, size, and quantity needed.
- Q:Can insulating fire bricks be used in wood-fired kilns?
- Indeed, wood-fired kilns can utilize insulating fire bricks. These bricks are specifically engineered to endure elevated temperatures and offer exceptional insulation, rendering them an optimal choice for wood-fired kilns. They effectively retain and evenly distribute heat throughout the kiln, guaranteeing efficient and uniform wood firing. Furthermore, their lightweight nature aids in the construction and upkeep of the kiln. Ultimately, the utilization of insulating fire bricks in wood-fired kilns enhances their overall performance and efficiency.
- Q:Can insulating fire bricks be used in chimneys and flues?
- Insulating fire bricks are specifically designed for high-temperature applications and are often used in furnaces, kilns, and other industrial settings. While they do possess excellent insulating properties, they may not be the best choice for chimneys and flues in residential or commercial buildings. The main reason for this is that insulating fire bricks are not as durable and heat-resistant as other materials specifically designed for chimney and flue construction. They may crack or break when exposed to the extreme heat and rapid temperature changes that occur in chimneys. Additionally, these bricks are not typically designed to withstand the corrosive effects of flue gases, which can lead to their degradation over time. When it comes to chimneys and flues, it is generally recommended to use materials such as clay flue liners, stainless steel, or refractory bricks that are specifically manufactured for these applications. These materials are better suited to handle the high temperatures, corrosive gases, and rapid thermal expansion and contraction that occur in chimneys. It is important to consult with a professional chimney or flue specialist who can advise on the appropriate materials to use based on the specific requirements and conditions of your chimney or flue system.
- Q:Do insulating fire bricks have a high electrical resistivity?
- Yes, insulating fire bricks generally have a high electrical resistivity. This is because these bricks are specifically designed to have low thermal conductivity and high thermal resistance, which also translates into high electrical resistivity. The insulating materials used in these bricks, such as alumina, silica, and other refractory materials, have inherently high electrical resistivity. Additionally, the manufacturing processes often involve the addition of insulating additives, further enhancing the electrical resistivity of the fire bricks. As a result, insulating fire bricks are effective in reducing heat transfer and maintaining high temperatures in various industrial applications, such as kilns, furnaces, and thermal insulation systems.
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Low Conductivity Mullite Refractory Birck
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 m.t.
- Supply Capability:
- 10000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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