Refractory Castable

Refractory Castables for Sale

Kerui refractory castables are made of refractory aggregate, refractory powder, binder, and other additives, and can be used directly or by adding the appropriate amount of water or other liquids. Once cast or gunned into place, the castable material hardens and cures to form a solid and durable refractory lining. Refractory castables can be installed using different methods depending on the specific application and equipment. Such as casting, gunning, troweling, and pumping.

Al2O3%: 40-95

Bulk Density: (g/cm³): 1.8-2.5

Compressive Strength: (MPa): 20-150

Max Service Temperature: (℃): 1300-1800

Sample: testing of sample is available

Classifications of KERUI Refractory Castable

High Alumina Refractory Castables
Suitable for use in neutral or acidic atmospheres in various high-temperature (generally less than 1350°C) industrial kilns. It is easy to construct and can replace a large number of special-shaped bricks during construction.
Low Cement Castables
Suitable for lining various heat treatment furnaces, heating furnaces, shaft kilns, rotary kilns, electric furnace covers, blast furnace tapholes, etc.; self-flowing low cement castables are suitable for integral spray gun linings for spray metallurgy and petrochemical catalytic cracking reactors. High-temperature wear-resistant linings, outer linings of water-cooled pipes in heating furnaces, etc.
Silicon Carbide Castables
Widely used in high-temperature equipment in metallurgy, chemical industry, electric power, glass and other industries. For example, it is used for the lining, furnace door, furnace and other parts of high-temperature kilns; for the lining of refractory pipes and containers, and for the pouring of refractory insulation layers. In addition, silicon carbide castables can also be used to prepare refractory ceramic products, such as refractory bricks, refractory boards, etc.
Acid-Resistant Castables
Mainly used in acidic atmosphere chimneys, flues, nitric acid shrink tower linings, and acid gas container linings.
Corundum Mullite Castables
Mainly used in acidic atmosphere chimneys, flues, nitric acid shrink tower linings, and acid gas container linings.
Steel Fiber Castables
Mainly used in acidic atmosphere chimneys, flues, nitric acid shrink tower linings, and acid gas container linings.
Corundum Refractory Castable
Mainly used in acidic atmosphere chimneys, flues, nitric acid shrink tower linings, and acid gas container linings.
Mullite Refractory Castable
Used in petrochemical industry tubular heating furnaces, light diesel oil, ethane cracking furnace linings, atmospheric and vacuum furnaces, sulfur recovery devices, steam boilers, tortoise shell mesh insulation layers, single-layer insulation for both cylinders and pipes and other industrial furnaces Furnace door, fire hole, observation hole door lining, etc.
Lightweight Insulation Castable
Used to ensure the thermal insulation performance of various high-temperature industrial kilns and the air tightness and integrity of the lining wall, while increasing the anti-corrosion capability of the kiln lining.

Applications Of Kerui Refractory Castable

Refractory castable is a special material with high-temperature resistance, corrosion resistance, and wear resistance. It can protect equipment from high temperature, corrosion, and wear, ensuring the normal operation of production equipment and the safety of personnel and property.

Cement & Lime

Cement & Lime, Refractory castables are mainly used in cement plants including the thermal insulation lining; Refractory castables are usually used in lime rotary kiln preheaters and front and rear kiln mouths.

Metallurgical Industry

refractory castables are mainly used in high-temperature furnaces, such as steel smelting furnaces, aluminum electrolytic cells, glass melting furnaces, etc.

Chemical Industry

refractory castables are mainly used for the lining of various chemical reactors and storage tanks.

Power Station

refractory castables can be used in the lining of electric boilers and kilns to withstand combustion under high temperature and pressure conditions.

  • Cement & Lime
  • Metallurgical Industry
  • Chemical Industry
  • Power Station

Advantage of Refractory Castables

Insulation Properties

The lightweight aggregates and particles in the refractory castables reduce heat transfer and provide excellent thermal insulation properties that reduce heat loss and improve energy efficiency in furnaces and other heat treatment equipment. Welcome to inquire at Kerui, we will provide you with the best quality products with reasonable price.

High Strength

Refractory castables are usually made with high-performance binding agents and fine-grained aggregates that are properly mixed and cured to form a high-strength structure. This high strength allows the refractory castables to withstand mechanical and thermal stresses at high temperatures, maintaining the structural stability and integrity of the furnace.

Easy Construction

Castables are suitable for different equipment shapes and size requirements. They can be customized to specific shapes and configurations, they can be quickly poured, sprayed, or smoothed to meet the needs of a wide range of equipment and processes, and they are easy to construct. Welcome to visit Kerui factory, we will provide you with the best service.

Chemical Resistance

Fire-resistant castables can be made with aggregates and binders that have good resistance to chemical attacks. These materials are resistant to corrosive media such as molten metals, acid and alkali solutions, and corrosive gases. They protect equipment from erosion by acids and bases, corrosive gases, and molten metals. Welcome to Inquiry.

Production Process of Refractory Castables

Kerui is a professional refractory material manufacturer. First of all, we have advanced production equipment, technology, laboratories, and strict quality inspection departments to ensure the high quality of our products. Secondly, we provide customized services and develop customization according to customer needs. In addition, we have professional pre-sales and after-sales teams that can provide customers with integrated solutions, products, and construction solutions.

Certificates Of Kerui Refractory

Kerui Group has a number of international certifications, such as, ISO9001/ISO14001/OHSAS18001/CE/SGS. Besides,
Kerui’s products also have many domestic certificates, the quality is very guaranteed, and they have been unanimously recognized by customers at home and abroad.

Kerui Refractory Products Packaging & Shipping

The entire delivery process is tracked, and Kerui’s expert team solves specific project needs with the utmost professionalism.
If the customer’s project requires it, Kerui’s expert team will go to the customer’s country to provide face-to-face technical support.

Customer Case Of Kerui Refractory

Besides mainland China, Kerui Refractory has exported products to more than 50 countries and regions across 5 continents across the world, including Asia, Europe, America, Africa and Oceania.

We have received recognition and high praise from customers all over the world, and are constantly receiving customers’ repeat orders and referrals.

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      • Refractory Castable
      • Castable Classification
      • Application
      • Advantage
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    ω (Al2O3) ≥/%5060657080
    Refractoriness ≥/℃17001720172017201780
    Bulk Density ≥/ (g/cm³)110℃*24h2.152.30 2.40 2.452.65
    Cold Modulus of Rupture ≥/MPa4.0 5.0 6.0 6.0 7.0
    Cold Crushing Strength ≥/Mpa2530353540
    Permanent Linear Change (T/℃*3h)/%±0.8
    Item/GradeClayHigh AluminaCorundum
    ω (Al2O3) ≥/%457592
    ω (SiO2) ≥/%50125
    ω (CaO)
    Bulk Density(g/cm3)2.32.63
    Cold Crushing Strength/Mpa727585
    Permanent Linear Change/±%
    Max Service Temperature/℃145016001700
    Water Needed/%6.0-6.56.0-6.54.0-5.0
    Item/GradeSICAST 85SICAST 80SICAST 60
    Physical PropertiesRequired Quantity (t/m3)2.682.62.5
    Water Required for Casting (%)450844508445115
    CCS (kg/cm2)@ 110℃x24h650(140)500(90)450(70)
    @ 1000℃x3h850(150)600(150)550(100)
    @ 1350℃x3h1100(250)1000(250)1000(250)
    PLC (%)@ 110℃x24h-0.06-0.06-0.06
    @ 1000℃x3h-0.1-0.1-0.2
    @ 1350℃x3h-0.1-0.1-0.12
    TC (kcal/mh℃)@ 35011.5118
    Chemical Propertiesω (Al2O3)/%9920
    ω (SiC + C)/%837858
    ω (SiO2) ≥/%454852
    Bulk Density ≥/ (g/cm³)
    Cold Crushing Strength ≥/MPa5810
    Acid Resistance ≥/%959595
    Thermal Conductivity Coefficient ≤ /[W/(m·K)] (350±25℃)0.50.550.60
    Service Temperature/℃8009001000
    ω (Al2O3) /%707585
    ω (SiO2) /%251713
    ω (Fe2O3) /%111
    Bulk Density (g/cm3)
    Cold Crushing Strength/MPa110*24h100110120
    Cold Modules of Rupture/MPa110℃*24h151518
    Normal Temperature Wear/cm3761500
    0.2Mpa Refractoriness Under Load/℃1450148025
    Max Service Temperature/℃1550251600
    Permanent Linear Change/%1300℃*3h-0.3-0.2-0.2
    ω (Al2O3) ≥/%807065
    Room Temperature Flexural Strength ≥/Mpa110*24h After Drying12.0 10.0 9.0
    1110*3h After Drying12.0 10.0 6.5
    Normal Temperature Compressive Strength ≥/Mp110*24h After Drying908070
    1110*3h After Drying908050
    1110Flexural Strength After 5 Times of Water Quenching And Rapid Heating Cycles at Room Temperature/Mp ≥5.555
    Permanent Linear Change/%1110*3h After Burning±0.5±0.5±0.5
    ω (Al2O3) ≥/%809095
    Bulk Density ≥/ (g/cm³)
    Flexural Strength ≥/MPa91011
    Compressive Strength ≥/MPa606060
    Permanent Linear Change ≤/%±0.5±0.5±0.5
    ω (Al2O3) ≥/%55606570
    Bulk Density ≥/ (g/cm³)
    Flexural Strength ≥/MPa7789
    Compressive Strength ≥/MPa40506070
    Permanent Linear Change ≤/%±0.5±0.5±0.5±0.5
    Bulk Density (g/cm³)
    Max. Service Temperature/℃1150120012501250130013001350
    Thermal Conductivity Coefficient ≤/[W/(m·K)]350℃
    700℃0.20 0.30 0.40.450.50.70.75
    Cold Crushing Strength ≥/MPa110℃*24h1.52.0 4.0 5.5101520
    1000℃*3h1.52.0 5.56.5152030
    Permanent Linear Change (1000℃*3h)/%-1.5-1.0 -1.0 -0.5-0.5-0.5-0.5