Zirconia/Chromia (Corundum) Brick

Your Professional Zircon Brick 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.

Fused AZS Brick
The production of fused zirconia corundum (AZS) bricks requires a precise electric fusion process.

● Strong high-temperature performance.
● Good thermal...
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High Zircon Bricks
High zircon bricks are a type of special refractory material primarily composed of ZrO2 (zirconia), Al2O3 (alumina), and SiO2 (silica).

● High structural strength.
●...
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Sintered Zirconia Corundum Brick
Sintered AZS zirconia corundum bricks are made from high-quality zirconia (ZrO2) as the main raw material.

● High strength and excellent high-temperature performance.
●...
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Dense Zircon Brick
Dense zircon bricks are refractory products primarily formed by melting pure alumina powder and zircon sand containing zirconia in an electric furnace.

● Dense crystal...
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Corundum Brick
Corundum bricks refer to refractory material products with an alumina content greater than 90% and corundum as the main crystal phase.

● High hardness and wear resistance....
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Chrome Corundum Brick
Chrome corundum bricks refer to refractory products containing Cr2O3 within a corundum matrix.

● Strong resistance to high temperatures and chemical corrosion.
●...
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High Chrome Brick
High chrome bricks are refractory products made from fused chromium oxide and alumina, with the addition of performance-enhancing agents like zirconia, and fired at high temperatures.
...
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Chrome Zirconia Corundum Brick
It resists slag infiltration and thermal shock for non-ferrous smelting and high-temperature kilns.
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Alumina Chrome Brick
Good slag and molten metal corrosion resistance
suitable for non-ferrous metal smelting furnaces
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Alumina Chrome Spinel Brick
Excellent slag and molten metal corrosion resistance for non‑ferrous smelting furnaces.
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Zirconia Bubble Brick
Zirconia Bubble Brick is porous zirconia lightweight brick. It has ultra-high service temperature and excellent thermal insulation.
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Fused Cast Zirconia Mullite Brick
Fused Cast Zirconia Mullite Brick is premium fused refractory with zirconia and mullite. It has low thermal expansion, excellent thermal shock resistance and good erosion resistance to molten...
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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.

Zircon Brick - Overview

Zircon brick is a type of refractory brick made primarily from zircon (ZrSiO4) and/or zirconia (ZrO2). It's known for its high melting point, excellent chemical stability, and, notably, good corrosion resistance against molten glass, making it suitable for various high-temperature applications.

Product Specification

We provide the following product specifications:

Item		Zircon Bricks
Item		ZS65JA	ZS65JB	ZS60
Chemical Composition	ZrO2% ≧	65	65	60
	SiO2% ≦	33	33	36
	Fe2O3% ≦	0.3	0.3	0.5
Bulk Density（g/cm2）≧		3.85	3.75	3.60
Apparent Porosity(%) ≦		16	18	20
Cold Crushing Strength(MPa)≧		100	100	100
0.2MPa Load Softening Start Temperature≧		1700	1700	1500
Thermal Shock Stability		Excellent	Excellent	/

Product advantages

Excellent Thermal Shock Resistance

Zirconia refractory can resist thermal shock. In glass kilns, hot air will shock the refractory linings. The refractory bricks may crack or damage. Zirconia refractory can avoid this situation because of the excellent thermal shock resistance. It can effectively extend the life cycle of high-temperature equipment.

Good Mechanical Shock Resistance

Zircon refractory bricks can resist mechanical shock resistance because of the high density of the structure. In the production process, equipment will receive various mechanical shocks. They can used for the vulnerable parts of industrial furnaces to prolong the service time.

Stable Chemical Structure

Zircon refractory is an acidic refractory brick that can be used for glass kilns. It can resist acidic chemical solutions and slags. In this situation, zircon brick will not affect the production. It is an ideal refractory brick for glass kilns.

Low Thermal Conductivity

Zircon bricks have low thermal conductivity. It can sustain high temperatures in industrial equipment. The low thermal conductivity helps improve energy utilization. Moreover, it has good electric insulation that can use electronic materials.

Types of Zircon Brick

Fused Cast Zircon Bricks (AZS Brick)
This refractory fire bricks are formed by melting the raw zirconia material and then casting the molten material into molds to form the bricks. They are known for their high density, low porosity, and excellent corrosion resistance.Fused zirconia bricks are ideal for lining glass kilns and offer unrivaled resistance to the corrosive properties of molten glass.

Zirconium Mullite Bricks
Zirconium mullite bricks combine zirconium oxide and mullite, a mineral composed of aluminum silicate, to form a brick with enhanced thermal shock resistance and mechanical strength.
These bricks are typically used in applications where slag resistance and thermal cycling properties are required, such as the construction of ladles and intermediate ladles in the steel industry.

Zirconium Corundum Bricks
These bricks are a blend of zirconia and corundum (alumina) with high refractoriness, corrosion resistance, and thermal shock resistance. Zirconium corundum bricks are commonly used in non-ferrous industrial furnaces, cement kilns, and incinerators.

Zircon-Silica Bricks
Zirconia-silica bricks are made of zirconium oxide and silica and have good thermal insulation and resistance to corrosion by molten metals. These bricks are used in the aluminum industry and other metal melting processes.

Application of Zircon Brick

Glass industry: Zircon refractory bricks are used in glass furnaces because they can withstand the high temperatures and chemical corrosion associated with the glass melting process.

Iron and steel industry: Zircon bricks are used in various steelmaking processes, such as ladle linings, continuous casting linings, and continuous casting applications, where they can withstand thermal shocks and the corrosive effects of molten metals.

Cement industry

Zircon bricks with high refractoriness and resistance to alkali corrosion are used in the construction of cement kilns and other high-temperature zones in cement plants.

Non-ferrous metals industry

Zircon fire bricks are used for the smelting and refining of non-ferrous metals such as aluminum, copper, and zinc, and can withstand aggressive conditions and high temperatures of molten metals.

Petrochemical industry

Zircon refractory fire bricks are used in petrochemical furnaces and reactors where high temperatures and chemical resistance are required.

Production Process of Zircon Bricks

Crushing and grading

Raw materials such as zircon and baddeleyite are crushed into different particle sizes (e.g., coarse, medium, and fine powders) and mixed according to a specific gradation to optimize brick structure.

Molding

Dry molding (press forming) or wet molding (slurry casting) is used to ensure uniform brick density.

Firing

High-temperature calcination (1500–1800°C) promotes mineral reactions to form stable crystalline phases (e.g., zirconium corundum, baddeleyite), enhancing high-temperature performance.

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.

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FAQ

Q: Are there different grades of Firebrick?

A: Many different grades of firebrick are manufactured according to international standards, and are suitable to operate in various temperatures and atmospheres up to 3250F. A specially-bonded grade of high temperature insulating fire brick is also available that is produced with unique processes.

Q: What is the composition of zircon refractory?

A: Composition: Zircon mullite refractories are typically composed of zirconia (ZrO2) and mullite (Al2O3·SiO2). These materials are combined to take advantage of their individual properties, such as high melting points, thermal shock resistance, and chemical stability.

Q: What is the hardness level of zircon?

A: 6.5 – 7.5
Zircon has a hardness of 6.5 – 7.5 on the Mohs scale and has a low to moderate toughness. There are many tools and observations gemmologists and appraisers can use to identify zircon.

Q: What is your MOQ?

A: 50PCS.

Q: Can I get samples?

A: Of course, we usually provide existing sample for free, however a little sample charge is needed for custom designs. Sampls charge is refundable when order is up to a certain quantity.

Q: How long is the lead time of the samples?

A: For existing samples, it takes 3-5 days.

Q: How long is the production lead time?

A: For some itesm we keep some stock that can be delived in 2 weeks. New poductioin leadtime 60-80 days.

Q: What is your payment term?

A: Discussed! T/T / Alipay /Paypal.

Q: Can I customized my own Brand?

A: Yes we can do however you need to reach certain quantity for each item.

Q: How will you deliver the goods?

A: For some orders with small quanity we can deliver by air or express And for bulk and big quantity we will deliver to any one China adress you want.

As one of the most professional zircon brick manufacturers and suppliers in China, we're featured by quality products and low price. Please rest assured to buy bulk customized zircon brick from our factory. Contact us for sample.

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