Product Description

Introduction
Refractory Corundum Ceramic Ball (also called corundum grinding ball) is a type of high-performance ceramic material made from high-purity alumina (Al2O3) as the main raw material. It has excellent mechanical, thermal, and chemical properties, making it a popular choice for a wide range of industrial applications.
 
Corundum ceramic balls are highly refractory, with a melting point of around ***0°C, and exhibit excellent thermal stability and resistance to thermal shock. They are also highly wear-resistant, with hardness values similar to that of natural sapphire or ruby. This makes them ideal for use in high-temperature and abrasive environments, such as in furnaces, kilns, and other industrial processes.
 
The main raw material of refractory corundum ceramic balls is high-purity alumina (Al2O3), which is typically sourced from bauxite or alumina hydrate. Refractory corundum ceramic balls are available in a range of sizes and shapes, including spheres, cylinders, and pellets, and can be customized to meet specific application requirements. They are commonly used as packing media in various high-temperature processes, such as gas and liquid filtration, catalytic reactors, and heat storage systems. Corundum ceramic balls can also be used as grinding media in ball mills and as catalyst support in chemical reactions.
 
Overall, refractory corundum ceramic balls offer excellent mechanical and thermal properties, making them a versatile and reliable material for a wide range of industrial applications.
 
Refractory Corundum Ceramic balls are a series of alumina spheres that are referred to as corundum balls due to their high alumina content. Corundum balls can be subdivided into series of *0, *2, *5, *9, etc. according to the content of alumina.
 
In addition to high-purity alumina, other materials may be added to the raw material mixture to enhance certain properties of the corundum ceramic ball. For example, small amounts of zirconia (ZrO2) or magnesium oxide (MgO) may be added to improve the toughness, corrosion resistance, or thermal conductivity of the ceramic. However, the exact composition and additives used in the raw material mixture can vary depending on the specific application requirements of the corundum ceramic ball.
 
Properties
Corundum ceramic balls have several properties that make them highly desirable for use in various industrial applications. Some of the key properties of corundum ceramic balls include:

• High Hardness and Wear Resistance: Corundum ceramic balls are extremely hard and wear-resistant, with a hardness rating similar to that of natural sapphire or ruby. This makes them ideal for use in abrasive and high-wear environments.
• High-Temperature Resistance: Corundum ceramic balls have excellent thermal stability, with a melting point of around ***0°C. They can withstand high temperatures without losing their mechanical or chemical properties, making them ideal for use in high-temperature applications.
• Chemical Inertness: Corundum ceramic balls are highly resistant to chemical attack and are chemically inert to most acids, bases, and solvents. This makes them ideal for use in chemical processing, where they can withstand harsh chemical environments.
• Low Thermal Expansion: Corundum ceramic balls have a low coefficient of thermal expansion, which means they do not expand or contract significantly when exposed to temperature changes. This makes them ideal for use in applications where dimensional stability is critical.
• High Compressive Strength: Corundum ceramic balls have high compressive strength, which makes them resistant to cracking or breaking under pressure. This property makes them ideal for use in high-pressure applications.
• Electrical Insulation: Corundum ceramic balls are excellent electrical insulators and can withstand high voltages without conducting electricity. This makes them ideal for use in electrical and electronic applications.

• Corundum ceramic balls have the following characteristics:
• High heat storage capacity, anti-slagging, anti-oxidation, and excellent erosion resistance.
• Good thermal conductivity, small thermal resistance, good shock stability, and long life.
• Good flexibility, high intensity, and refractoriness.
• Maximum use temperature up to ***0°C.
• Small size, easy to change and operate.
• ISO***1:***8 certified.

• In a 1MT Big Bag
• In *5KG PP Big Bags within a 1MT Big Bag
• Customized packaging is also available as required.