A refractory ball is a spherical ceramic body designed to withstand high temperatures, mechanical loads, and corrosive environments. Unlike ordinary ceramic media, refractory balls are specifically formulated for continuous operation in furnaces and reactors where temperatures may exceed 1500–1900°C.
1.High mechanical strength and long service life.
2.Good chemical stability: Does not react chemically with materials.
3.Excellent high-temperature performance: Refractory ceramic balls can withstand temperatures up to 1900 degrees.
Particularly suitable for high and low-temperature shift converters, conversion furnaces, hydrogenation converters, desulfurization tanks, and methanation furnaces in fertilizer plants, dispersing gas-liquid, supporting, covering, and protecting catalysts.
In the iron and steel industry, refractory ceramic balls are used in hot blast stoves and heating conversion equipment. They can be divided into ordinary refractory balls and high alumina refractory balls. Ordinary refractory balls are used in converters and shift converters in the sulfuric acid and fertilizer industries, while high alumina refractory balls are used in hot blast stoves and heating conversion furnaces in industries such as urea and steel.
|
Performance/Type |
Refractory Ball |
Corundum Refractory Ball |
Low-silica Refractory Ball |
|
|
chemical composition(%) |
AI2O3 |
45~90 |
90~98 |
≥99 |
|
SiO2 |
10~70 |
0.5~5.0 |
≤0.3 |
|
|
Fe2O3 |
≤1 |
≤0.5 |
≤0.1 |
|
|
Porosity % |
≤20 |
≤15 |
≤10 |
|
|
Refractoriness ℃ |
≥1450 |
≥1750 |
≥1850 |
|
|
Resistance to rapid temperature change(℃) |
600 |
800 |
800 |
|
|
Crushing strength |
150~20000 |
Depends on alumina content and specifications |
||
|
Moh's hardness (Scal) |
≥7 |
≥8 |
≥9 |
|
|
Acid resistance % |
≥95 |
≥98 |
≥98 |
|
|
Alkali resistance % |
≥85 |
≥95 |
≥98 |
|
|
Stacking weight kg/m³ |
1200~1600 |
1600~1800 |
1800~2000 |
|
Refractory balls are high-temperature ceramic media widely used in industrial furnaces, reactors, and heat-conversion equipment. They play a critical role in supporting catalysts, dispersing gas and liquid flow, stabilizing temperature distribution, and protecting equipment linings under extreme thermal and chemical conditions.
Manufactured from high-purity refractory raw materials, refractory balls are engineered to deliver excellent mechanical strength, superior thermal stability, and outstanding chemical inertness, making them indispensable in industries such as steelmaking, fertilizer production, petrochemical processing, non-ferrous metallurgy, and energy systems.
At Highland Refractory, we supply a full range of refractory balls with stable quality, consistent dimensions, and long service life, tailored to meet the demanding requirements of global industrial users.
A refractory ball is a spherical ceramic body designed to withstand high temperatures, mechanical loads, and corrosive environments. Unlike ordinary ceramic media, refractory balls are specifically formulated for continuous operation in furnaces and reactors where temperatures may exceed 1500–1900°C.
They are commonly used as:
Thanks to their spherical geometry, refractory balls provide uniform stress distribution, improved airflow, and enhanced thermal efficiency.
Refractory balls are designed to resist crushing, abrasion, and impact under continuous operation. High compressive strength ensures stability even under heavy catalyst beds or high gas velocities.
Benefits:
Depending on material composition, refractory balls can withstand temperatures up to 1900°C without deformation or structural failure.
Benefits:
Refractory balls are chemically inert and do not react with gases, molten metals, or chemical media used in industrial processes.
Benefits:
Frequent heating and cooling cycles can cause cracking in inferior materials. Refractory balls are engineered to handle rapid temperature changes with minimal spalling.
Benefits:
Precision manufacturing ensures consistent ball diameter and smooth surfaces, enabling even gas distribution and stable stacking.
Benefits:
Refractory balls are produced from different compositions to suit various industrial environments:
Material selection depends on operating temperature, chemical exposure, and mechanical load.
In steelmaking, refractory balls are widely used in:
They help stabilize temperature, support refractories, and improve thermal efficiency.
Refractory balls are commonly installed in:
They serve as catalyst support and gas-liquid dispersion media, ensuring uniform flow and reaction efficiency.
Used in reactors and reformers, refractory balls protect catalysts from thermal shock and mechanical damage while maintaining stable process conditions.
In copper, aluminum, and other non-ferrous smelting operations, refractory balls contribute to stable heat distribution and equipment protection.
Refractory balls are used in:
They improve thermal efficiency and extend lining service life.
When choosing refractory balls, consider the following factors:
Highland Refractory provides technical support and customized solutions to help clients select the most suitable refractory ball.
Our refractory balls are produced under strict quality control systems, including:
Each batch meets international industrial standards, ensuring consistency and reliability.
Refractory balls are supplied in:
With strong production capacity and export experience, Highland Refractory supports global deliveries for steel plants, chemical facilities, and EPC contractors.
Our refractory balls are trusted by customers in steel, chemical, fertilizer, and energy industries worldwide.
Refractory balls are essential components in modern high-temperature industrial systems. Their ability to withstand extreme heat, resist chemical attack, and maintain structural integrity makes them indispensable for furnaces, reactors, and heat-conversion equipment.
By choosing Highland Refractory Refractory Balls, you gain a reliable, long-lasting solution that enhances process efficiency, protects equipment, and reduces overall operating costs.
For technical specifications, customization options, or pricing inquiries, contact our team today.
Aluminum content 75%-80% Refractory 1770℃ or above
High alumina poly light brick is a high quality lightweight refractory material.
Checker bricks are heat transfer media used in the regenerative chambers of blast furnaces and hot blast stoves.
Mullite lightweight insulation brick is a high-quality insulation material.
Low creep clay bricks have a low creep rate in high temperature environments and can maintain good shape and dimensional stability for a long time.
Silica-molybdenum bricks have high resistance to chemical erosion and excellent wear resistance, and are the preferred material for the transition zone and preheating zone of large cement kilns.
Acid-resistant brick is made of quartz, feldspar and clay as the main raw materials
Silicon carbide plates are mainly composed of silicon carbide (SiC) as the aggregate (with a content usually ≥ 80%).
High alumina fine powder is a powder material with alumina (Al2O3) as the main component.
Clay powder is a powdery material with clay minerals as the main component.
Refractory cement, also known as aluminate cement, is a fire-resistant hydraulic cementitious material.
