AZS Refractory Brick

AZS refractory brick is a type of high-temperature refractory material. This material exhibits excellent refractory properties and chemical stability. They are commonly used in the high-temperature glass industry. Kerui Refractory provides AZS41, AZS36, and AZS33 to 1000+ customers from 50 countries.

  • ZrO2: 33.5-41%;
  • SiO2: 12-15%;
  • Bulk Density: 3.8-4.05g/cm³;
  • Cold Crushing Strength≥70MPa;
  • Apparent Porosity: 0.6-0.8%;
  • Size: 230*114*65mm (standard)/And other sizes;
  • Delivery: 15-30 working days;
Free Sample Available to Any Country
Good Thermal Shock Resistance
Good Erosion and Corrosion Resistance
AZS Refractory Brick

Technique Parameters of Fused Cast Refractories

Kerui Refractory offers three types, including AZS-41 brick, AZS-36 brick, AZS-33 brick. The numbers 41, 36, and 33 represent the range of Zirconia content in the heat refractory bricks. For example, AZS-41 contains 41% ZrO2. Different types have different performance. Please choose the appropriate product according to your needs and AZS properties.

ItemAZS41AZS36AZS33
SiO2, %121315
Al2O3, %The RemainderThe RemainderThe Remainder
ZrO2, %4136.533.5
Fe2O3+TiO2+CaO+MgO+Na2O+K2O, %≤2.0≤2.0≤2.0
Bulk Density, g/cm34.053.93.8
Apparent Porosity, %0.60.80.7
Initial Precipitation Temperature of Vitreous Phase, ℃140014001400
Vitreous Phase Exudation, %
(1500℃*4h)
1.52.32.0
Anti-molten Glass Erosion Speed Under Static Condition, mm/24h
(1500℃*36h, ordinary soda lime glass)
1.21.31.4
Bubble Release Rate, %
(1300℃*10h, ordinary soda lime glass)
0.61.0 1.2

Kerui AZS Refractory Bricks
Fused Cast Refractories

Introduction of AZS Refractory Brick

AZS refractory bricks are short for electrofused Alumina-Zirconia-Silica refractory bricks. This high content of alumina and zirconia improves the brick’s fire resistance, thermal shock resistance and corrosion resistance. AZS bricks perform well in high-temperature environments and make them ideal in many industrial applications, like glass furnaces.

Kerui Fused Cast AZS Block
Fused Cast AZS Block Kerui Refractory

Types and Applications of AZS Bricks

AZS 41 Refractory Brick

AZS-41 Brick

AZS41 stands out as the top product within the casting AZS series. It showcases exceptional resistance to liquid glass corrosion and an impressively high glass phase seepage temperature.

  • Al2O3: 45%
  • Volume Density: 4.05g/cm³
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AZS 36 Refractory Brick

AZS-36 Brick

With a higher proportion of interlocking zirconia crystals and reduced glass phase content, AZS36 brick is similar to AZS33. It is well-suited for high-temperature environments with high liquid glass flow rates.

  • Al2O3: 49%
  • Volume Density: 3.9g/cm³
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AZS 33 Refractory Brick

AZS-33 Brick

AZS-33 bricks exhibit excellent resistance to liquid glass corrosion. It minimizes the formation of stones or defects and reduces the likelihood of small bubbles. Due to these characteristics, AZS-33 bricks are extensively utilized in glass kilns.

  • Al2O3: 50%
  • Volume Density: 3.8g/cm³
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AZS bricks are widely used in various industries, including: glass industry for tank furnaces and glass electric furnaces, steel industry for slide gates, caustic soda industry for kilns, aluminum electrolysis cells, silicon stone melting furnaces, phosphate industry kilns, and so on.

More importantly, Kerui Refractory can design solutions tailored to your specific usage scenarios, such as kiln design. Refractory manufacturers have a professional engineering team and technical staff who can provide customized solutions based on customer needs and requirements. The right solution ensures optimal performance and applicability of the products.
Application of AZS Bricks

AZS Refractory Brick

High-temperature Resistant

Kerui AZS bricks have a high load softening temperature. They can operate normally at 1700 degrees Celsius. Their shape and strength remain unchanged.

Thermal Shock Stability

AZS and magnesium oxide bricks can continue to work with a stable structure even in situations of rapid temperature changes. They are not affected by thermal shock.

Compressive Strength

Bricks have excellent compressive strength and can withstand stress in high temperature and pressure environments. So it helps to maintain structural stability and ensure safe and reliable equipment operation.

Wear Resistance

AZS bricks have excellent wear resistance. They can resist wear and abrasion, extend service life, keep the surface smooth, and ensure long-term stable operation of equipment.

Strong Slag Resistance

Fused cast alumina blocks have a high resistance to corrosion and erosion caused by molten slag or other harsh materials. This property makes AZS bricks ideal for use in environments where they are exposed to corrosive substances.

Low Porosity

This type of brick has a low porosity. It can effectively reduce the permeation of liquids and gases. It has strong stability. It plays a certain protective role for other equipment.

Test of Fused Cast AZS Brick

After each batch of AZS bricks is produced, Kerui Refractory will randomly select samples for testing. After passing the inspection, it will be sent to the customers. This step ensures that the AZS bricks delivered to customers meet the requirements. The testing process mainly includes the following aspects:
Kerui Fused Cast AZS Brick

Global Customers of Kerui AZS Refractory Bricks

Kerui AZS bricks and solutions have been applied in over 50 countries across five continents globally. These customers have expressed that Kerui provides high-quality refractory bricks, professional technical support, and comprehensive after-sales service. And they will continue to choose to cooperate with Kerui Refractory in the future if there is a need.

Kerui Refractory and AZS hold international certificates and patents such as ISO9001, ISO14001, OHSAS18001, CE, SGS, and so on. These certifications show Kerui Refractory’s dedication to quality, environmental management, occupational health and safety, and compliance with global standards. By following these certifications, Kerui Refractory guarantees that its AZS bricks are made and delivered with top-notch quality, safety, and environmental responsibility.

Kerui Certificates 2024

Choose Kerui Refractory As Fused Cast AZS Manufacturer

Factory Strength

Kerui Refractory has its own AZS brick manufacturing factory. 20 sets of pressure equipment and two 168-meter natural gas tunnel kilns ensure that AZS bricks are delivered to customers on time and with high quality. In addition, the factory’s production team, equipment, and quality inspection team. And shipping team is dedicated to serving customers with a professional attitude at all times.

Technical Strength

Kerui Refractory has a professional technical team with over 20 years of industry experience to provide customers with professional comprehensive solutions and product plans for AZS blocks. Even if customers are new to this industry, they do not need to worry.

Service Strength

We offer construction and training services of AZS brick solution. Our construction team will assist customers in completing projects on time. Additionally, we provide technical online consultation services to address customers’ inquiries promptly.

As the leading manufacturer of AZS bricks, Kerui Refractory prides itself on our commitment to quality, innovation, and customer satisfaction. Our expertise and dedication to meeting customers’ specific needs sets us apart in the industry. When you choose us, you can trust that you are getting a reliable and durable product that will meet your high-temperature industrial requirements. Experience the difference with our AZS bricks and let us be your trusted partner in success. Let’s discuss on Email or Kerui WhatsApp.