Silicon Nitride Bonded Silicon Carbide Brick

silicon nitride bonded silicon carbide brick is made of high-purity silicon carbide and mineral additives fired in a nitrogen atmosphere. In addition, Kerui Refractory is a trusted manufacturer of silicon carbon nitride brick. They offer various shapes and sizes as per your requirements.

  • SiC(≥): 72%
  • Bulk Density: 2.65g/cm3
  • Cold Crushing Strength: 150MPa

KERUI Silicon Nitride Bonded Silicon Carbide Brick

Kerui Excellent Silicon Nitride Bonded Silicon Carbide Brick for Sale

Nitride bonded silicon carbide brick is a high-grade refractory brick. Moreover, its main raw material is silicon carbide and the binding phase is Si3N4. It inherits many of the excellent properties of nitride and SiC. For example, it has high high temperature strength, large thermal conductivity, small linear expansion coefficient, good thermal shock resistance, great alkali corrosion resistance, good oxidation resistance and strong corrosion resistance. Besides, it also has the advantages of resistance to zinc, copper and aluminum corrosion and good high temperature wear resistance. So, we widely use reaction bonded silicon nitride bricks in steel, non-ferrous metallurgy, ceramics and other industries.

Silicon Nitride Bonded Silicon Carbide Brick
Silicon Nitride Bonded Silicon Carbide Brick for Sales

Physiochemical Index of Silicon Nitride Bonded Silicon Carbide Brick

SiC, %72
Si3N4, %21
Fe2O3, %0.5
Apparent Porosity, %18
Bulk Density, g/cm³2.65
Cold Crushing Strength, MPa150
Modulus of Rupture, MPa40

Silicon Carbide VS Silicon Nitride

Silicon carbide has a maximum density of about 3.21 g/cm³ and is highly resistant to acid and alkali corrosion. Moreover, its melting point is relatively high, about 2700°C(4892℉). In addition, its hardness is close to diamond and it is a super-hard material. So, we use it for applications that require special hardness and are highly corrosive. Such as ceramic cutting tools, optoelectronic devices and refining furnaces.

Silicon nitride has a smaller density of about 3.17 g/cm³ and a melting point of about 1900°C(3452℉). Moreover, silicon nitride is relatively stable at high temperatures and is not easily oxidized. Therefore, silicon nitride is more suitable for industrial equipment with a combination of thermal shock resistance. Such as turbine blades, piston rings, combustion chambers and heat exchangers.

Fire Bricks

Industrial Equipment Suitable for Silicon Nitride Bonded Silicon Carbide Brick

Silicon nitride bonded silicon carbide bricks are heat resistant bricks with excellent heat resistance and chemical stability. We mainly use it for the lining, furnace, furnace bottom and other parts of high-temperature industrial equipment. Below are some industrial equipment suitable for nitride bonded silicon carbide bricks.

Aluminum Electrolytic Cell

In the aluminum electrolysis industry, silicon nitride bonded silicon carbide bricks are used as lining materials for electrolytic cells. It has good corrosion resistance and conductive properties. Therefore, it can provide good electrolysis effects while withstanding high temperatures and chemical attacks.

Glass Melting Furnace

We can also use reaction bonded silicon nitride bricks for glass melting furnaces. During the glass manufacturing process, furnaces need to withstand thermal stress and erosion. However, the use of silicon nitride combined with silicon carbide bricks protects the structural stability of the furnace.

Other Industrial Equipment

We can also see it in other high-temperature industrial equipment. Such as steel-making furnaces, iron-making furnaces, ceramic kiln furniture, blast furnaces tuyere cooling pipe sleeves and high-temperature pipes. In addition, you can contact us to get free technical solutions at anytime.

Magnesia Alumina Spinel Bricks of Aluminum Electrolytic Cell
Aluminum Electrolytic Cell
Silicon Nitride Bonded Silicon Carbide Brick for Glass Melting Furnace
Glass Melting Furnace

Kerui Refractory Bricks in Chemical Industry

The Leading Silicon Nitride Bonded Silicon Carbide Brick Supplier – Kerui Group

Versatile Refractory Bricks

Kerui offers versatile refractory bricks to meet a variety of industrial needs. No matter what industrial equipment you need, Kerui can provide suitable refractory brick solutions. In addition, Kerui refractory fire bricks provide excellent performance and reliable fire resistance. Therefore, this makes Kerui one of the preferred suppliers for customers.

Support Sample Inspection

They understand the importance customers place on product quality. Therefore, Kerui is willing to provide samples for customers to inspect and test. This means customers can get samples for inspection and confirmation before purchasing. That is, they focus on customer needs and ensure that the refractory bricks selected meet their requirements.

Complete Facilities

Kerui has complete supporting facilities, including advanced production equipment and laboratory facilities. So, they focus on technological innovation and quality control. Through advanced equipment and strict testing methods, they can ensure product consistency. If you want to buy high-quality refractory bricks, Kerui will be a good choice.

Prompt Delivery

They also focus on supply chain management and logistics operations to ensure that customer orders are delivered on time. This is very important to customers. Timely delivery can ensure the smooth progress of the project and avoid unnecessary delays and cost increases. Besides, if you want to know more about Kerui, you can follow them on YouTube.

KERUI Russian Customers Inspection
Refractory Bricks Inspection

Kerui Fire Bricks Manufacturers


Are you looking for high performance silicon nitride bonded silicon carbide bricks? Do you want to get the most out of your project? Fortunately, these Kerui can satisfy you. So, leave your contact information and we will bring you a considerate and comprehensive purchasing experience.

    Contact Us

    • * Name:

    • * Email:

    • * Phone/Whatsapp (including area code):

    • Country:

    • * MessagePlease leave the following information for quicker reply: product name, specifications, dimension/ drawing, quantity, usage, etc.