• Insulating Fire Brick 65% Al2O3 min High Alumina System 1
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Insulating Fire Brick 65% Al2O3 min High Alumina

Insulating Fire Brick 65% Al2O3 min High Alumina

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
1 m.t.
Supply Capability:
20000 m.t./month

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Description of Insulating Fire Brick

 

Insulating Fire Brick 65% Al2O3 min High Alumina is a kind of insulation material adopting organic matter as ignition loss substance in order to increase the porosity of refractory, which has such advantages as high porosity, small volume density, good insulation effect, high mechanical intensity, small thermal conductivity and long service life. For various industrial kilns & furnaces, Insulating Fire Brick is a kind of essential refractory for energy saving and temperature preservation.

This series of High Alumina Insulating Fire Brick are made of selected high alumina bauxite, kaolin caly, hollow microsphere as the mian material. By shaping at high pressure and sintering at high temperature. 

 

 

Features of Insulating Fire Brick

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 firing, which meets the requirement of construction.

 

Specifications for Insulating Fire Brick

 

SSW-23

SSW-25

SSW-26

SSW-28

SSW-30

SSW-32

ASTM C155-97                           °C

Classification Temperature           °F

1260

2300

1350

2500

1430

2600

1540

2600

1650

3000

1760

3200

ASTM C134-95                    g/cm³

Bulk Density                       ib/ft³

0.60

37

0.80

50

0.80

50

0.90

56

1.03

64

1.25

78

ASTM C133-97                          Mpa

Cold Crushing Strength              ib/in²

1.2

170

2.0

284

2.0

284

2.6

370

2.8

398

3.4

484

ASTM C133-97                          Mpa

Modulus of rupture                    ib/in²

0.9

128

1.2

170

1.5

218

1.6

232

1.7

247

2.0

290

ASTM C210-95                          %

Permanent Liner Change            °C*hrs

0

1230*24

-0.5

1350*24

-0.5

1400*24

-0.8

1510*24

-0.9

1620*24

-0.9

1730*24

ASTM C182-88

Thermal Conductivity (W/m.k)

400°C

0.17

0.24

0.24

0.30

0.40

0.49

600°C

0.19

0.28

0.27

0.32

0.42

0.50

800°C

0.22

0.32

0.30

0.35

0.44

0.51

1000°C

0.25

0.37

0.32

0.38

0.45

0.53

1200°C

---

---

0.35

0.39

0.47

0.55

Chemical Analysis of Insulating Fire Brick

Al2O3                                   %

45

50

55

65

72

76

Fe2O3                                  %

0.9

0.8

0.8

0.5

0.4

0.3

SiO2                                     %

50

45

42

32

26

22

CaO+MgO                             %

0.7

0.6

0.3

0.2

0.3

0.2

K2O+Na2O                           %

1.3

1.0

1.0

0.8

0.2

0.1

 

 

 

Images of Insulating Fire Brick

 

 

Insulating Fire Brick 65% Al2O3 min High Alumina

Insulating Fire Brick 65% Al2O3 min High Alumina

Insulating Fire Brick 65% Al2O3 min High Alumina

 

Applications of Insulating Fire Brick

1. Building materials for blast furnace

2. Building materials for hot-blast stove

3. Building materials for coke oven

4. Building materials for steel making furnace

5. For construction material in steel industry

6. For ladle

 

FAQ of Insulating Fire Brick

 

1. Which products do you have?

We have all kinds of refractory brick, castable, mortar, cement, ceramic fiber products, etc.
Or you could browse our products to choose what you need.

 

2. Can you give me a general idea of the specification and technical data of your products?

CNBM offer a range of refractory and insulation products. We provide refractory bricks, monolithic refractories as well as ceramic fiber products. And On your given shapes, drawings or description, we are producing refractories with all sizes and shapes, resistant to temperature from 800 °C till 1800 °C, using various machines and equipments for cutting, grinding, drilling, polishing, shaping processes.
Every refractory product by CNBM is of superior quality. Lesser refractory products can not approach. CNBM utilizes proprietary testing methods, testing for chemical content, density, apparent porosity, cold crush strength and modulus of rapture. With stringent quality control, you can count on CNBM products to exceed refractory industry standards and your expectations.

 

3. Can you give me a brief introduction of the application of your products?

We are mainly specializing in the refractory materials in iron and steel, cement, glass, ceramics, petrochemical, electric power Industry, etc.

 

4. If I need your offer, what information do you need?

In order to choose suitable products, it will be appreciated to provide us the information, such us specification, technical data, order quantity, products application etc.
If any question, please contact us freely.

 

 

Q: Can insulating fire bricks be used in the construction of pizza ovens?
Yes, insulating fire bricks can be used in the construction of pizza ovens. These bricks have excellent heat retention properties which help to create a high and even temperature inside the oven. Additionally, their insulating properties help to decrease heat loss, making them ideal for pizza ovens where maintaining a consistent and high temperature is crucial for achieving crispy and delicious pizzas.
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: Do insulating fire bricks have good insulation performance at high temperatures?
Yes, insulating fire bricks have excellent insulation performance at high temperatures. These bricks are designed specifically to withstand extremely high temperatures and provide a high level of thermal insulation. They are made from lightweight materials that have low thermal conductivity, allowing them to effectively trap and contain heat within a furnace, kiln, or other high-temperature applications. This insulation property helps in reducing heat loss and maintaining a consistent temperature inside the structure. Insulating fire bricks are widely used in industries such as ceramics, metallurgy, glass-making, and heat treatment, where maintaining high temperatures and thermal efficiency are crucial.
Q: Are insulating fire bricks suitable for insulation in steam boilers?
Insulating fire bricks, which are made from lightweight materials such as alumina or silica, are highly suitable for providing insulation in steam boilers. These bricks possess exceptional insulating properties and can endure high temperatures and thermal shocks, making them an ideal choice for use in steam boilers subjected to constant heat exposure. The low thermal conductivity of insulating fire bricks effectively hinders heat transfer, resulting in reduced energy loss and enhanced efficiency of steam boilers. Additionally, their superior insulation capabilities assist in maintaining consistent temperatures within the boiler, preventing fluctuations in heat and minimizing the risk of thermal stress and damage. Moreover, insulating fire bricks exhibit resistance against corrosion and chemical attacks, ensuring their longevity and durability when employed in steam boiler applications. Furthermore, they can be effortlessly installed and cut into various shapes and sizes to perfectly fit the specific requirements of the boiler. In conclusion, insulating fire bricks are an exceptional option for insulation in steam boilers due to their ability to withstand high temperatures, low thermal conductivity, and resistance to corrosion. Their utilization aids in reducing energy loss, improving efficiency, and guaranteeing the long lifespan of the boiler.
Q: Can insulating fire bricks be used in the construction of steel production furnaces?
Certainly, insulating fire bricks have the capability to be employed in the construction of steel production furnaces. These bricks have been specifically engineered to endure extreme temperatures and offer exceptional thermal insulation, rendering them suitable for a wide range of industrial applications, including steel production. They are manufactured using lightweight materials with low thermal conductivity, enabling them to effectively minimize heat loss and enhance energy efficiency within furnaces. Furthermore, these bricks exhibit remarkable resistance to thermal shock, a crucial property for steel production processes involving rapid heating and cooling. In summary, utilizing insulating fire bricks in the construction of steel production furnaces can optimize performance, reduce energy consumption, and enhance the overall efficiency of the steelmaking process.
Q: Can insulating fire bricks be used in the construction of foundry furnaces?
Yes, insulating fire bricks can be used in the construction of foundry furnaces. Insulating fire bricks are made from lightweight materials that have high insulating properties, such as ceramic fibers, vermiculite, or perlite. These bricks are designed to withstand high temperatures, making them suitable for use in foundry furnaces. Foundry furnaces require materials that can withstand the extreme heat generated during the melting of metals. Insulating fire bricks have a high resistance to heat transfer, which helps to minimize heat loss in the furnace. This makes them an excellent choice for insulating the walls and floor of the furnace, as they can help to improve energy efficiency and reduce fuel consumption. Additionally, insulating fire bricks are lightweight, which makes them easier to handle and install in the construction of the furnace. Their lightweight nature also reduces the overall weight of the furnace structure, making it more portable and easier to move if needed. Overall, insulating fire bricks are a suitable choice for the construction of foundry furnaces due to their high insulating properties, resistance to heat, and lightweight nature. They can help improve the efficiency and performance of the furnace while withstanding the extreme temperatures required for metal melting.
Q: Are insulating fire bricks fire-rated?
Yes, insulating fire bricks are fire-rated. They are specially designed to withstand high temperatures and provide excellent insulation properties, making them suitable for use in fireplaces, kilns, and other applications that involve exposure to extreme heat.
Q: Can insulating fire bricks be used for insulation in heat recovery systems?
Indeed, insulating fire bricks have the capability to serve as insulation within heat recovery systems. These bricks are specially crafted to endure elevated temperatures and deliver efficient thermal insulation. By possessing low thermal conductivity, they possess the ability to reduce heat dissipation and enhance heat recovery within a system. Consequently, they are frequently implemented in diverse industrial settings, including kilns, furnaces, and ovens, where temperature regulation and energy efficiency are paramount. Therefore, these bricks present a viable option for insulating heat recovery systems, facilitating the optimization of waste heat recovery and utilization.
Q: What are the different sizes and shapes available for insulating fire bricks?
Insulating fire bricks come in various sizes and shapes to cater to different applications and requirements. The sizes of insulating fire bricks typically range from standard sizes like 9" x 4.5" x 2.5" (commonly referred to as "9-inch bricks") to smaller sizes like 9" x 4.5" x 1". These standard sizes are widely used in the construction of fireplaces, kilns, furnaces, and other high-temperature applications. In addition to standard sizes, insulating fire bricks are also available in custom sizes, allowing for greater flexibility in design and construction. These custom sizes can vary depending on the manufacturer, but they generally follow the same width and length measurements as the standard bricks. Regarding the shape, insulating fire bricks are commonly rectangular or square-shaped. The rectangular shape is the most common and versatile, allowing for easy installation and arrangement in various structures. Square-shaped bricks are also available but may be less commonly used. It's worth noting that insulating fire bricks can be further categorized based on their density or insulation value. These bricks are typically classified into three categories: low-density, medium-density, and high-density. Each category has different insulating properties, with low-density bricks offering the highest insulation value. Overall, the wide range of sizes and shapes available for insulating fire bricks allows for customization and adaptability to different construction projects, ensuring optimal insulation and heat retention in high-temperature applications.
Q: Are insulating fire bricks suitable for use in the construction of smelters?
Insulating fire bricks are indeed appropriate for the construction of smelters. These bricks are specifically engineered to endure high temperatures and offer exceptional insulation qualities, thus rendering them a perfect choice for smelting purposes. Their thermal conductivity is low, enabling efficient heat retention and minimized energy wastage throughout the smelting procedure. Moreover, insulating fire bricks exhibit resistance to thermal shock, a vital feature in smelting operations characterized by abrupt temperature fluctuations. Thus, owing to their superior capacity to withstand heat and insulate, insulating fire bricks present a dependable option for smelter construction.

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