Silicon carbide brick is a high-performing refractory material with outstanding chemical and mechanical strength properties. However, the choice of raw materials and binder used during production may affect its performance.
Chemical resistance allows it to resist acids, alkalis and molten metals without suffering damage, helping minimize equipment downtime and replacement costs.
High Strength
Silicon carbide bricks are highly durable and offer exceptional mechanical strength, boasting a Mohs hardness of 9 and being capable of withstanding heavy loads without cracking under pressure. Furthermore, their corrosion-resistance allows them to perform effectively even in harsh chemical environments.
High temperature ceramic insulation products are capable of withstanding temperatures up to 2800degC, making them a suitable option for various industrial applications that involve high heat exposure – such as aluminum electrolysis cells and glass furnaces – in addition to blast furnaces and coke ovens.
Furthermore, they possess outstanding thermal shock resistance and low coefficient of thermal expansion compared to other refractory materials, meaning they expand and contract less when subjected to sudden temperature changes, thus decreasing risk of thermal stress cracking.
High Temperature Resistance
Silicon carbide brick is an ideal material to use for applications involving high working temperatures. It can withstand intense heat without suffering strength loss, helping reduce maintenance and repair costs and making this brick an excellent choice in chemical environments. These characteristics make silicon carbide an excellent choice in industrial settings with demanding conditions.
Kerui silicon carbide refractory bricks can be divided into various categories based on their chemical composition and characteristics; each designed for specific applications. Our selection offers you plenty of choices so that you can find one to meet your individual requirements.
Black SiC (containing more than 96% SiC content) is used as raw material and mixed, formed and fired using various binders or none at all. It features low expansion coefficient, good thermal conductivity and resistance to both acidic and basic slag slagging.
Excellent Corrosion Resistance
Silicon carbide refractory bricks offer exceptional resistance against acids and alkalis corrosion, as well as being highly resistant to abrasion – helping increase their lifespan while decreasing maintenance costs. They’re lightweight and easy to install for high temperature applications making them an economical solution.
These refractory bricks can withstand temperatures as high as 1650degC while maintaining strength and dimensional stability, making them suitable for furnaces and kilns. Their superior thermal conductivity also facilitates efficient heat transfer resulting in energy savings.
High Flexural Strength
Silicon carbide brick has excellent flexural strength, meaning it can withstand mechanical stress without cracking or breaking under heavy mechanical load. This durability extends its lifespan and decreases replacement frequency over time, saving money in the process.
Metal and chemical processing environments can also place stress on these linings, as their resistance to acids and alkalis makes them ideal for use as furnace linings that must withstand corrosive substances, thus increasing life spans while cutting maintenance costs.
Rongsheng refractory brick factories use a self-bonding system for production, with silicon carbide powder and metal silicon powder used as aggregate, carbon matrix as matrix material, and tar pitch as binder; then pressuring or forming and curing in high pressure environments to create green bricks.
Excellent Thermal Shock Stability
Silicon carbide brick is an ideal material choice for high-temperature industrial applications. It offers resistance against acidic and alkaline slags as well as chemical corrosion – helping improve operational efficiency while prolonging equipment lifespan in harsh industrial settings.
These refractory materials use silicon carbide as their primary raw material, and can be divided into oxide-bonded, carbon-bonded, nitride-bonded, sialon bonded, b-SiC bonded and recrystallized categories. They are suitable for ceramic kiln furniture (shed, bracket and raft linings), lower part of blast furnace shaft linings, furnace waist/belly linings as well as zinc distillation tanks or cement rotary kiln cooler linings.
Mullite bonded silicon carbide bricks provide superior wear resistance, corrosion protection and thermal shock stability, making them an energy-saving choice for industrial kilns. Sintered using high purity industrial silicon carbide as the raw material, they are produced through reaction sintering.
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