zhengzhou kerui (group) refractory co.,ltd
Provide Leading Solutions for High Temperature Kilns

Insulating Fire Brick for Sale

Insulating fire brick has the advantages of high-temperature resistance, strong insulation ability, good chemical stability, etc. Therefore, it is popular to use Kerui high quality insulating fire brick for sale for all kinds of high-temperature fields. Please keep reading to buy suitable insulation firebrick.

  • 30-99

    Al2O3% (≥)

  • 0.6-1.6

    Bulk Density (g/cm³)

  • 0.25-4

    Thermal Conductivity (W/m·k)

  • 1.5-4.5

    Cold Crushing Strength (MPa)

  • Kerui authentication

get price

5 Main Types of Kerui Insulating Fire Brick for Sale

NameHigh Alumina Insulation BrickFire Clay Insulation BrickMullite Insulation BrickAlumina Bubble BrickSilica Insulation Brick
Main Content≥48% Al2O330%-46% Al2O340%-77% Al2O390%-99% Al2O3≥91% SiO2
Bulk Density0.5-1.2g/cm³0.5-1.5g/cm³0.5-1.35g/cm³1.3-1.9g/cm³1.0-1.2g/cm³
Thermal Conductivity Coefficient0.2-0.55 W/(m·K)0.23-0.65 W/(m·K)0.18-0.56 W/(m·K)0.9-1.2 W/(m·K)0.55-0.7 W/(m·K)
Cold Crushing Strength1.0-4.5 MPa0.8-6.0 MPa0.9-3.5 MPa6-18 MPa2-5 MPa
AdvantagesGood chemical resistanceCost-effectiveHigh refractorinessHigh StrengthGood acid resistance
ApplicationsUsed in ceramic tunnel kilns, roller kilns, shuttle kilns, wall kilns, etc., as well as other parts that are not subject to strong corrosion and erosion of high-temperature molten materials.Used as the insulation layer of thermal equipment such as ignition kilns, flues, refining devices, heating devices, regeneration devices, gas furnaces and pipelines, soaking furnaces, annealing furnaces, reaction chambers, etc.Suitable for the refractory lining and backing insulation layer of pyrolysis furnaces, hot blast furnaces, ceramic roller kilns, electric porcelain drawer kilns and various high temp resistance furnaces.Used as the working lining or thermal insulation lining of high-temperature kilns such as gasification furnaces in the petrochemical industry, carbon black industrial reactors, and induction furnaces in the metallurgical industry.Used in the insulation layer of coke ovens, glass kiln vaults, hot blast furnace walls and domes, and does not directly contact high-temperature molten materials and alkaline gases.

Introduction of Kerui Insulating Fire Brick for Sale

Insulating fire brick (IFB) is also known as soft fire brick, thermal insulation brick, or lightweight insulating fire brick. The brick is a kind of lightweight refractory material. Besides, it has widespread applications in insulation layers of high temperature kilns. Normally, insulation brick consists of refractory clay, alumina, and appropriate amount of organic filling. After being calcined during the manufacturing process, insulating fire bricks will be given a uniform pore structure. Meanwhile, the brick can withstand the temperature of 1093-1760℃ (1999-3200℉). Due to its low thermal conductivity and small heat capacity, insulation brick has extensive uses in furnace body structural materials.

Kerui Insulating Fire Brick
Buy Kerui Insulating Fire Bricks
Insulating Fire Brick Supplier

Properties of Insulating Fire Brick for Sale

Low Thermal Conductivity

On the one hand, soft insulating fire brick for sale contains a large number of gas pores. These pores can reduce the heat conduction path and hinder heat conduction. Thereby, customers can reduce thermal conductivity. On the other hand, the raw materials of insulating firebrick itself have low thermal conductivity, such as kaolin, silicate, etc. At the same time, manufacturers of insulating refractory bricks minimize the use of metal elements or minerals with high thermal conductivity to optimize the insulating refractory brick recipe.

Light Weight

Insulating firebrick contains a large number of gas pores. These pores can reduce the actual density of the brick body. As a result, the application of this brick is able to reduce the weight of insulating firebricks. On this basis, insulating fire brick manufacturers may add foaming agents or other additives to the mixture during production, in order to increase the number of air pockets and voids. With the help of the substance, the manufacturers further decrease the weight of insulating firebricks.

High Insulating Efficiency

Customers can take the pore structure of insulating firebricks into two types: open pores and closed pores. The opening refers to the interconnected voids inside it. The closed refers to the fact that voids inside the brick are sealed to form tiny air gaps. These gaps impede the transfer of heat to realize good thermal insulation. At the same time, this also stores the heat of insulating bricks during the production process. Moreover, it’s helpful to exert good environmental protection benefits by reducing energy consumption.

Buy Kerui Insulating Fire Brick for Sale
Excellent Soft Fire Brick for Sale
Kerui Soft Refractory Brick

What Are Applications of Kerui Insulating Fire Bricks?

  • Petrochemical Industry: heating furnace, cracking furnace, hydrogen production furnace;
  • Steel Industry: hot blast furnace, hot blast pipeline, sintering furnace, coke furnace, forging furnace, annealing furnace, sintering furnace;
  • Aluminum Industry: electrolytic cells, anode furnaces, and alumina refractory smelting furnaces;
  • Non-ferrous Metal Industry: aluminum melting furnace, crucible, furnace, electroplating furnace, heat preservation tank, reverberatory furnace, heat treatment annealing furnace;
  • Ceramic Industry: tunnel kiln, roller kiln, ovens, incinerators etc.

Application of KERUI Refractory Products

Where to Buy Insulating Fire Bricks?

Insulating Fire Brick for Sale Offline or Online

It is a direct way to buy thermal insulation refractory bricks offline. You can directly find local insulation firebrick manufacturers and do business with them directly. This purchase method is suitable for situations where you need a small amount of insulation bricks and need them urgently. What’s more, you can see the quality and quantity of insulating firebrick on-site. Staff in your local insulating firebrick store may also assist you to choose suitable bricks at once. While the disadvantage of offline purchase is that there is huge limitation on types of soft insulating fire bricks and suppliers.

It is more convenient to buy refractory bricks online. For example, you can search “Kerui insulating fire brick for sale” directly on Google, and you can see all relevant information about Kerui insulating fire bricks for sale. You can compare different suppliers and different prices to help you make an informed decision. It is worth noting that when contacting suppliers online, you need to allow time for production and shipment. Contacting the supplier in advance and confirming the cooperation intention will not affect the progress on your side.

Insulating Fire Brick for Sale in Kerui or Other Suppliers

Compared with other suppliers, Kerui has incomparable advantages. First, you can buy high-quality insulation bricks directly. Kerui is a professional manufacturer of refractory products with a history of more than 20 years, and our quality is obvious to all.

In addition, Kerui provides professional technical support, including selection of insulation bricks, guidance on kiln masonry, guidance on the use and storage of insulation bricks, etc. With Kerui, you get more than just products.

Besides, if you have special needs, Kerui is happy to provide you with customized services. Whether it is different types of refractory bricks, size, color, chemical composition or other aspects, Kerui tries to satisfy. In the industry, Kerui has more than 7 years of special-shaped brick molding process and rich experience.

If you are considering buying insulation bricks, why not consider Kerui?

High-quality Insulating Firebrick
Kerui Firebrick for Insulation Effect
Find Reliable Insulating Fire Brick Supplier

Kerui: Top Insulating Fire Bricks Supplier in China

As an important producer of firebricks, China has plenty of insulating fire brick manufacturers that offer cheap insulting fire bricks. There is no doubt that Kerui can rank among the top three suppliers of thermal insulation refractory bricks in China.

Rice Experience

Kerui Refractory has 20 years of experience in the refractory brick industry and 16 years of R&D experience. The location of Kerui factory is Xinmi City, Henan Province, where China’s refractory industry gathers. Xinmi City masters high-quality raw material resources. So Kerui has the advantage of its location that holds stable raw material storage.

Strong Production Ability

Kerui’s factory covers an area of 50,000 square meters. At the same time, it has more than two hundred employees, including more than 20 R&D personnel and more than 20 after-sales personnel. The annual output of the factory reaches 150,000 tons, including 100,000 tons of shaped refractory products and 50,000 tons of unshaped refractory materials.

High Reputation in Market

Because of strong capital and a professional team, Kerui reaches long-term partnerships with famous enterprises in refractory industry and also world top 500 enterprises. Meanwhile, Kerui exports refractory products to more than 30 countries on five continents and received good feedback. Visitr more cooperation on Kerui Pinterest account.

Reliable Manufacturer – Kerui Refractory

Kerui has various kinds of insulating fire bricks for sale. If you need high-quality insulating firebricks as well as professional service for your kiln, please get in touch with Kerui now. Kerui helps you to select the right insulating fire bricks for your project. We’ll reply in 12 hours!

    Contact Us

    Please feel free to give your inquiry in the form below. We will reply you right now!

    • * Name:

    • * Email:

    • * Phone/WhatsApp:(Including area code):

    • Country:

    • * Message:Please leave the following information for quicker reply: product name, specifications, dimension/ drawing, quantity, usage, etc.

    Get Inquiry