Zhengzhou Zhongkeda Refractory Materials Co., Ltd
Refractory Castable
Refractory Castable
High Performance Refractory Castable Manufacturer
Refractory castable is a kind of unshaped refractory material made from refractory aggregates, powders, binders and additives. It is mixed with water and installed by casting, vibration or pumping methods.
Compared with traditional refractory bricks, castables provide seamless lining construction, easy installation and excellent resistance to high temperature, thermal shock and chemical corrosion.
Types of Refractory Castable
• High Alumina Castable：High alumina castable with high Al₂O₃ content provides excellent wear resistance and high temperature performance for steel furnaces, kilns and industrial equipment.
• Low Cement Castable：Low cement castable features low porosity, high strength and improved thermal shock resistance for demanding high temperature applications.
• Lightweight Castable：Lightweight castable reduces furnace weight and improves energy efficiency with excellent insulation performance.
• Insulating Castable: Insulating castable is designed to reduce heat loss and is commonly used as insulation layers in furnaces and kilns.
Typical Applications of High-alumina Refractory Castable:
• Steel Industry：Refractory castables are widely used in ladles, tundishes, reheating furnaces, EAFs and other steelmaking equipment.
• Cement Industry：Ideal for rotary kilns, preheaters, coolers and other high-wear areas in cement production.
• Foundry Furnace：Suitable for induction furnaces, holding furnaces and melting furnaces with excellent thermal shock resistance.
• Boiler：Used in power plant boilers and biomass boilers to protect furnace walls from high temperatures and abrasion.
• Glass Industry：Provides durable lining solutions for glass melting furnaces and regenerators under continuous high-temperature operation.
• Industrial Kiln：Suitable for tunnel kilns, shuttle kilns and various industrial heating equipment requiring long service life.
Advantages of Refractory Castable
• High Temperature Resistance：Designed to withstand temperatures up to 1800°C, providing reliable performance in furnaces, kilns, boilers, and other high-temperature equipment.
• Excellent Thermal Shock Resistance：Resists cracking and spalling during rapid heating and cooling cycles, ensuring longer lining service life.
• High Mechanical Strength：Offers excellent abrasion resistance and load-bearing capacity, even under demanding operating conditions.
• Easy Installation：Can be cast, vibrated, or pumped into complex structures, reducing installation time and labor costs.
• Customized Formula：Available in different compositions to meet specific temperature, abrasion, corrosion, and application requirements.
• Long Service Life：Provides durable performance with low maintenance, helping reduce downtime and operating costs.
|
Product Type |
Features |
Applications |
Service Temperature |
|
High Alumina Castable |
High Al₂O₃ content, excellent strength and wear resistance |
Steel furnace, cement kiln, industrial furnace |
1500–1800°C |
|
Low Cement Castable |
Low porosity, high strength, excellent thermal shock resistance |
Furnace lining, boiler, kiln |
1600–1800°C |
|
Lightweight Castable |
Low density, excellent thermal insulation performance |
Furnace insulation layer, kiln, heat treatment equipment |
1200–1500°C |
|
Insulating Castable |
Low thermal conductivity, energy-saving insulation |
Industrial kiln, boiler, heating equipment |
1000–1400°C |
|
Silicon Carbide Castable |
Excellent wear resistance, corrosion resistance and thermal conductivity |
Waste incinerator, boiler, cement kiln |
1400–1700°C |
|
Wear Resistant Castable |
High abrasion resistance and impact resistance |
Cyclone, material conveying system, furnace areas |
1500–1700°C |
|
Corundum Castable |
High purity, ultra-high temperature resistance |
Steel industry, non-ferrous furnace |
1700–1800°C |
|
Steel Fiber Reinforced Castable |
Improved toughness and crack resistance |
Boiler, furnace bottom, high impact areas |
1400–1700°C |
Packing and Storage
Production Process
Why Choose ZKD Refractory
• 20+ Years Experience
• OEM Sizes Available
• Strict Quality Control
• Fast Delivery
• Factory Direct Price
• Export to 60+ Countries
FAQ:
Q1:What is refractory castable used for?
A1:Refractory castable is widely used for furnace linings, kiln construction, boilers, and other high temperature equipment.
Q2:What is the difference between refractory cement and castable?
A2:Refractory cement is mainly used as a binder, while refractory castable is a complete refractory mixture containing aggregates, powders, and binders.
Q3:Can you provide customized castable?
A3:Yes, we can customize castable formulations according to temperature, application, and operating conditions.
Q4:How is refractory castable installed?
A4:Castable is usually mixed with a certain amount of water, then poured, vibrated or sprayed into the required area. Proper curing and drying procedures are important for achieving the best performance.
Q5:Can you provide customized refractory castable?
A5:Yes. We can customize castable products according to required Al₂O₃ content, service temperature, density, strength and application conditions.
Q6:Do you provide samples before bulk orders?
A6:Yes. Samples can be provided for testing and quality evaluation before placing bulk orders.
Q7:What information should I provide when asking for a quotation?
A7:Please provide the application, working temperature, required quantity, furnace type, and any technical requirements. This helps us recommend the most suitable product.
