Castable
Your Professional Castable Supplier！
Zinfon Refractory Technology Co.,Ltd is a comprehensive enterprise integrating R&D, design, production, sales, and service, and is one of the world's large-scale production bases for magnesium refractory materials. the products cover all kinds of alumina refractories, including: high alumina series, mullite series, siliceous series, phosphate series, lightweight heat preservation series and other stereotyped products; castables, self-flowing materials, malleable materials, prefabricated blocks and other non-stereotyped products, as well as all kinds of refractory raw materials and chemical products.
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![Crust-resistant Refractory Castable]()
Crust-resistant Refractory CastableSilicon carbide crust-resistant castable takes silicon carbide (SiC ≥ 70%) as the main raw material, combined with high-alumina micropowder and anti-explosion fiber. Its refractoriness is > 1800℃,...read more -
![Blast furnace trough Castable]()
Blast furnace trough CastableBlast furnace runner castable takes brown corundum as the main raw material, and is prepared with appropriate addition of silicon carbide, carbon materials, clay, high-alumina cement, ultrafine...read more -
![Aluminum Non-wettingCastable]()
Aluminum Non-wettingCastableAluminum Non-Wetting Castable is a special refractory material for the aluminum processing industry. It combines the properties of both organic and inorganic binders, and incorporates new...read more -
![Alkali-Resistant Refractory Castable]()
Alkali-Resistant Refractory CastableAlkali-resistant refractory castable is an acidic refractory castable of the aluminosilicate system, which can resist corrosion by alkali metal oxides (such as K₂O and Na₂O).read more -
![Ultra-Low Cement Castables]()
Ultra-Low Cement CastablesUltra-low cement refractory castable is a high-performance, unshaped refractory material with a cement content of ≤1%. It is formulated using high-purity refractory aggregate as the base material,...read more -
![High-aluminium Castables]()
High-aluminium CastablesHigh-alumina castable is a type of monolithic refractory material made primarily from high-alumina bauxite clinker (with an Al₂O₃ content usually ≥50%), combined with a binder, additives, and...read more -
![Self-flow Castables]()
Self-flow CastablesSelf-flow castables are refractory materials that can flow and de-gas without the need for vibration (see refractory castables).read more
● Flows under its own weight, no need for... -
![Mullite Castables]()
Mullite CastablesMullite castables are made with mullite as the aggregate and powder, combined with specific binders.read more
● High mechanical strength.
● Excellent high-temperature... -
![Baking-free Anti-Explosion Castables]()
Baking-free Anti-Explosion CastablesBaking-free anti-Explosion castables are a new type of construction material primarily used for lining high-temperature industrial equipment.read more
● Good high-temperature and wear... -
![Corundum Castables]()
Corundum CastablesCorumdum castables are made with alumina as the aggregate and powder, combined with various binders.read more
● High mechanical strength and excellent wear resistance.
●... -
![Aluminum Magnesia Spinel Castables]()
Aluminum Magnesia Spinel CastablesAluminum magnesia spinel castables are refractory materials made primarily from corundum, super-grade bauxite clinker, fused or high-purity magnesia, and alumina-magnesia spinel, using low-cement...read more -
![Chromium Corundum Castables]()
Chromium Corundum CastablesChromium corundum castables are made primarily from high-strength refractory raw materials such as corundum and chromium oxide, with the addition of micro-powders.read more
● High temperature...
Why Choose Us
Rich Experience
With more than 20 years of experience, the company has its own R&D team and has supplied products to many traders.
Production Capacity
We have invested in two production lines equipped with 120-meter ultra-high-temperature tunnel kilns and a fully automatic crushing and grinding workshop for raw materials. With more than 100 employees, we achieve an annual output of 100,000 tons of various refractory products.
Our Qualification
We have passed through ISO9001, ISO14001, ISO45001 cerifications, as well as other national and local qualificaitons, such as Reliable Quality & Service Certification and Enterprises Credit Eveluation Cerfitification.
Castable is a granular and powdery material made of refractory materials and a certain amount of binder. It has high fluidity and is suitable for monolithic refractory materials formed by casting.They are used either as hot-face linings in lower-load applications or as backup insulation behind dense refractory linings or brickwork. efficiency and reduce thermal losses.
Product Specification
We provide the Ultra-Low Cement Castables specifications:
|
Grade |
Chemical Composition (%) |
Bulk Density (g/cm³) |
Flexural Strength (Mpa) |
Compressive Strength (Mpa) |
Linear Change Rate |
Service Temperature (℃) |
Water Addition (%) |
||||||||
|
Al₂O₃, ≥ |
CaO, ≤ |
100℃×16h, ≥ |
1350℃×16h, ≥ |
1500℃×16h, ≥ |
100℃×16h, ≥ |
1350℃×16h, ≥ |
1500℃×16h, ≥ |
100℃×16h, ≥ |
1350℃×16h, ≥ |
1500℃×16h, ≥ |
1350℃×16h, ≥ |
1550℃×16h, ≥ |
|||
|
ULC-45 |
45 |
1.0 |
2.40 |
2.35 |
- |
8 |
12 |
- |
40 |
80 |
- |
-0.5-0.5 |
- |
1500 |
5-6 |
|
ULC-75 |
75 |
1.0 |
2.70 |
- |
2.65 |
9 |
- |
13 |
40 |
- |
90 |
- |
-0.5-0.5 |
1550 |
5-6 |
|
NN-95 |
95 |
1.0 |
3.15 |
- |
3.10 |
12 |
- |
15 |
50 |
- |
95 |
- |
-0.5-0.5 |
1650 |
4.5-5.5 |
Advantages of Castable
Saves Time
The biggest industrial advantage that castable refractories offer is the time they save. Take the case of a furnace, for example. The castable refractory is made before its usage. Therefore, it significantly reduces the construction time of the furnace. the castable refractory does not require extra baking time. That allows one to use their time efficiently. Castable refractories do a marvelous job in industries where timely production and delivery can be crucial.
Ease in usage
Castable refractories are pretty easy to use. But what is even better is how easily they can be cast in different shapes. when treated and prepared, Castable refractories can meet harsh conditions without noticeable changes.
Significantly Better Structure Performance
Castables refractories are monolithic refractories, which is one of its biggest selling points. Once applied, the castable refractory can handle the harsh condition of the working environment for an extended period. It also requires little to no maintenance throughout its life. That allows for overall sound structure performance and durability.
Types of Refractory Castables
High-Alumina Refractory Castables
High-alumina refractory castables are also known as convention-dense castables. It is widely used in a lining turning kiln, heat-treatment furnaces, and furnaces of various industries like construction, cement, power-plant, etc. Additionally, such types of castables have a high content of alumina that may range from around 60% to 90%. High alumina refractory castables are suitable for applications that demand excessive strength, thermal resistance and other high-temperature properties.
Low-cement Refractory Castables
Another best-selling refractory castable; is a low cement refractory castable made up of a lower content of cement than the regular dense castable. In addition, low-cement refractory castables offer outstanding physical properties like low porosity, good abrasion, and so on. Low-cement refractory castable is mainly used in refractory lining like blast furnaces, refractory boilers, cement kilns, water-cooling pipe binders, and so on.
Non-cement Refractory Castables
Cementless castables are also known as no cement castables, however, these castables are dried with a special binder before they are used at high temperatures. Since they do not contain CaO, non-cement refractory castables are suitable for refractory materials used in the alumina industry.
Insulating Castables
Insulating castables are available in various shapes and sizes. Although, such types of castables pose low thermal conductivity to retain heat and minimize the use of fossil fuel. Thus, insulating castables are mostly used in cold-face applications at temperatures ranging from 900 to 1500 degrees Celsius.
Ultralow Cement Refractory Castables
Ultra low-cement refractory castable is a type of castable containing calcium oxide greater than 0.2% and a max of 1% on a calcined basis. Ultra-low cement castables are extremely suitable for refractory lining applications utilized in a wide array of industries.
Light-weight Insulating Refractory Castables
Light-weight insulation refractory castables are similar to standard insulating castables, such types of castables are available in different shapes and sizes which are also counted as unshaped refractory materials. It is made up of refractory powder, cement binder, and other refractory aggregates-additives.
Installation of Castables
Preparation
It is essential to ensure the substrate is clean, dry, and free from dust. If necessary, you can use a bonding agent to improve the adhesion between the substrate and the castable.
01
Mixing
You must follow the manufacturer's instructions when mixing castable with water. An appropriate amount of water is essential to achieve the desired consistency. To hydrate well, leave the mixture for a few minutes, which helps obtain its desired properties.
02
Applications
You can apply the castable mixture into molds or forms. Now, spread the material evenly and vibrate it to eliminate the voids or air pockets for proper consolidation.
03
Curing
Castable should be cured properly until the recommended period of time, which may range from 24 to 48 hours. To achieve the desired strength, avoid rapid moisture loss and temperature fluctuations.
04
Customization Process
Customized dimensions and shapes
Customized Brick Shape: Provide Sample Sheets--Mold Opening & Quotation--Mold Opening & Sample Making--Bulk Production Quotation--Contract Signing--Bulk Production.
Delivery cycle and logistics
Sea freight, land freight. Determine the mode of transportation according to the needs. About 30 days, customized products delivery time depends on the actual situation.
Customized packaging
Customize your brand: Logo customization, custom fonts, taglines and messages for packaging, signage, websites or printed materials. Take your brand to the next level, contact us today to discuss your project!
Certifications
Package & Delivery
Package: Standard export package or Customized Package.
Delivery: By air express, by sea.
FAQ
As one of the most professional refractory castable manufacturers and suppliers in China, we're featured by quality products and low price. Please rest assured to buy bulk customized refractory castable from our factory. Contact us for free sample.
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