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

Phosphate Bonded High Alumina Brick

Phosphate bonded high alumina brick uses refractory clay as the main raw material and phosphate as the binding agent. It has higher quality and excellent characteristics.

  • 75-77%

    Al2O3 (≥)

  • 2.65-2.75g/cm³

    Bulk Density

  • 1250-1350℃


  • 60-75MPa

    Cold Crushing Strength


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Introduction of KERUI Phosphate Bonded High Alumina Brick

Phosphate high alumina bricks are a type of refractory product that can be classified into two categories. It’s based on the different binders used. These two types are:

Phosphate Bonded High Alumina Brick

This type of product is often called phosphate bricks by many customers. During the manufacturing process, a phosphoric acid solution in this product is approximately 42.5% – 50%. These alumina refractory bricks are identified with the code “P”.

Aluminum Phosphate Bonded High Alumina Wear-resistant Brick

This product also refers to wear-resistant bricks. Unlike the previous type, it is bonded with an industrial phosphate and a solution made of industrial aluminum hydroxide. The identify code is “PA”.

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Introduction of KERUI Phosphate Bonded High Alumina Brick
Phosphate High Alumina Brick for Sale

Parameter of KERUI Phosphate High Alumina Brick

The phosphate bonded alumina bricks exhibit excellent performance in various aspects. The following parameters from the table below are clear (data is from the China Refractory Materials Industry Association). If you’d like to know more details, please contact us immediately. Kerui sales manager will respond to you promptly. Please note that the specific details and technical specifications of phosphate high alumina bricks can vary depending on specific product formulation from firebrick suppliers.

ω (Al2O3)/% ≥75757777
ω (Fe2O3)/% ≤
ω (CaO)/% ≤
Bulk Density (g/cm3)2.702.652.752.70
Cold Crushing Strength/MPa ≥70607565
0.2MPa Refractoriness Underload/℃1350130013001250
Thermal Shock Resistance/Times10101010

Characteristics of Phosphate Bonded High Alumina Brick

Phosphate high alumina bricks offer several key features that make them suitable for various high-temperature applications. Here are some of their notable features:

High Working Temperature

These bricks are able to withstand high temperatures. The precise working temperature can vary depending on the specific product formulation and manufacturer. However, phosphate bonded high alumina bricks generally have a high refractoriness, allowing them to maintain the structural integrity and performance in extreme heat conditions.

Excellent Thermal Shock Resistance

Phosphate bonded high alumina firebricks exhibit good resistance to thermal shock. This means that they can withstand rapid temperature changes without cracking or spalling. This feature is crucial in applications with frequent thermal cycling, such as in furnaces or kilns.

Good Corrosion Resistance

These bricks have a high resistance to chemical corrosion, which makes them suitable for environments where they come into contact with various corrosive agents. This feature ensures the longevity and durability of the bricks, even in harsh conditions.

Outstanding Wear Resistance

Phosphate bonded high alumina bricks are famous for their excellent wear resistance. They can withstand abrasive forces and mechanical wear, which makes them ideal for applications where the bricks will face high levels of wear and tear.

Excellent Phosphate Bonded High Alumina Brick
KERUI Phosphate Bonded Refractory Product

Wide Uses of KERUI Phosphate Bonded High Alumina Brick

In terms of chemical composition, phosphate bonded high alumina bricks improve the properties. This product is crucial in kiln linings with severe peeling and wear. Here we take cement kilns with large consumption as an example. We can often see phosphate high alumina bricks are often used in the firing zone, transition zone, cooling zone, cooler, kiln mouth, kiln tail and other parts of the cement rotary kiln. These parts have a relatively harsh working environment and may need to face extreme temperature changes, wear, corrosion, etc.

In addition, Kerui phosphate bonded refractory products are also suitable for use on electric stove tops and other locations. Welcome to contact Kerui to get a customized solution. Welcome to follow KERUI Facebook to catch more news.

Refractory Brick Cases

Phosphate Bonded High Alumina Brick Manufacturer – Kerui

As a prominent manufacturer of high-alumina phosphate bricks, Kerui has established a strong reputation in the industry by consistently delivering innovative and cost-effective refractory brick solutions to its customers. When it comes to raw materials, technology, and service, Kerui has distinct advantages that set it apart from its competitors.

Raw Materials Advantage

Kerui benefits from its strategic location in areas rich in mineral resources, which gives the company access to abundant raw materials for the production of refractory materials. Additionally, as a major importer of raw materials for refractory production, China provides a wide range of high-quality materials at competitive prices. This allows customers to choose Chinese suppliers directly, which ensures both cost savings and better quality.

Technology Advantage

Situated in the core industrial zone for good refractory products in China, Kerui has a deep understanding of the production of refractory materials and has mastered core and advanced technologies in this field. Moreover, Kerui Refractory place a strong emphasis on technological innovation to provide customers with new and practical products. As a result, Kerui has obtained numerous international certifications, local honors, innocation patents as well as utility model patents .

Service Advantage

Kerui prides itself on its professional and timely service. The company has a dedicated team of experts, including technical engineers and business managers, who possess extensive project experience and can provide customers with tailored solutions. This ensures that customers receive the most appropriate and effective recommendations for their specific needs. Kerui service team can deliver high-quality support and maintain strong relationships with customers.

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In conclusion, Kerui, as a manufacturer of phosphate bonded high alumina brick, possesses several advantages in terms of raw materials, technology and service. Its access to abundant raw materials, mastery of advanced technologies and commitment to providing excellent customer service make it a reliable and competitive choice for customers in need of refractory brick solutions.

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