What is a Nitride Bonded Silicon Carbide (Si₃N₄–SiC) brick?

It is a high-performance refractory brick made from silicon carbide bonded with silicon nitride, engineered for high-temperature and high-wear furnace linings.

What are the advantages of Nitride Bonded Silicon Carbide bricks?

They offer excellent thermal shock resistance, high mechanical strength, low thermal expansion, resistance to slag and alkali corrosion, and long service life in harsh environments.

Which industries use Si₃N₄–SiC bricks?

Iron and steel, cement, glass, non-ferrous metallurgy, petrochemical, and waste incineration industries.

What is the chemical composition of Wedge India’s Si₃N₄–SiC bricks?

Typical composition: SiC 75%, Si₃N₄ 22%, Al₂O₃ 0.37%, Fe₂O₃ 0.27%.

What are the key physical properties?

Bulk density 2.73 g/cm³, apparent porosity 13.3%, cold crushing strength 229 MPa, modulus of rupture at 1400°C of 65.2 MPa.

Where are these bricks installed in steel plants?

Blast furnace linings, troughs, tapholes, runners, ladle slag lines, and other high-wear, high-temperature zones.

How do Si₃N₄–SiC bricks perform in cement kilns?

They show strong resistance to clinker buildup and alkali attack, making them ideal for cooler zones and transition areas.

Are they suitable for glass industry applications?

Yes. They are used in regenerators, tank superstructures, and other areas exposed to aggressive glass melts.

What temperature resistance do these bricks provide?

They maintain structural integrity and strength at temperatures exceeding 1400°C.

Why choose Wedge India for Si₃N₄–SiC bricks?

Wedge India supplies international-standard refractories with reliable quality, competitive pricing, and global export capability, supported by technical datasheets, MOQ clarity, and firm delivery timelines.

Nitride Bonded Silicon Carbide Refractory Bricks

Making World-Class High-Performance Refractory Products Available in India at Lower Price

Wedge India offers Nitride Bonded Silicon Carbide Bricks (Si₃N₄-SiC Bricks) – engineered for furnace linings, kilns, and high-temperature industrial applications. These bricks combine exceptional thermal shock resistance, high strength, and outstanding wear resistance, making them the ideal choice for steel, cement, glass, and non-ferrous industries.

Key Features

Excellent resistance to oxidation and alkali corrosion
High load-bearing capacity at elevated temperatures
Low thermal expansion and high thermal conductivity
Long service life in harsh furnace environments
Designed for blast furnaces, kilns, incinerators, and non-ferrous melting furnaces

Technical Specifications

Property	Value
SiC %	75
Si₃N₄ %	22
Al₂O₃ %	0.37
Fe₂O₃ %	0.27
Bulk Density (g/cm³)	2.73
Apparent Porosity (%)	13.3
Cold Crushing Strength (MPa)	229
Modulus of Rupture (1400°C)	65.2

Applications

Iron & Steel Industry: Blast furnace linings, troughs, ladles, and tapholes
Cement Industry: Kiln linings and cooler zones
Glass Industry: Regenerators, tank superstructures
Non-Ferrous Metallurgy: Aluminum, copper, and zinc furnace linings
Incinerators & Boilers: Resistant to slag and alkali attack

Why Choose Wedge India?

At Wedge India, we combine global refractory expertise, advanced manufacturing, and competitive pricing to deliver reliable high-performance solutions. Our Si₃N₄-SiC Brick Linings are manufactured to international standards and are trusted in more than 58 countries worldwide.

Order & Inquiry

Request a quotation today by filling out our Get Price Form. Our team will provide:

Technical datasheets
MOQ details
Delivery timelines

Nitride Bonded Silicon Carbide Refractory Bricks

SKU: Si₃N₄-SiCBricks

Q1. What is a Nitride Bonded Silicon Carbide (Si₃N₄-SiC) brick?
A Nitride Bonded Silicon Carbide Brick is a high-performance refractory material made from silicon carbide and silicon nitride bonding, designed for high-temperature and high-wear furnace linings.

Q2. What are the advantages of Nitride Bonded Silicon Carbide bricks?
These bricks offer excellent thermal shock resistance, high mechanical strength, resistance to slag and alkali attack, and long service life in demanding furnace conditions.

Q3. In which industries are Si₃N₄-SiC bricks used?
They are widely used in iron & steel, cement, glass, non-ferrous metallurgy, petrochemical, and waste incineration industries.

Q4. What is the chemical composition of Wedge India’s Si₃N₄-SiC bricks?

SiC: 75%

Si₃N₄: 22%

Al₂O₃: 0.37%

Fe₂O₃: 0.27%

Q5. What are the key physical properties?

Bulk Density: 2.73 g/cm³

Apparent Porosity: 13.3%

Cold Crushing Strength: 229 MPa

Modulus of Rupture at 1400°C: 65.2 MPa

Q6. Where are Nitride Bonded Silicon Carbide bricks installed in steel plants?
They are used in blast furnace linings, troughs, tapholes, runners, and ladle slag lines.

Q7. How do these bricks perform in cement kilns?
Si₃N₄-SiC bricks are highly resistant to clinker formation and alkali attack, making them ideal for cooler zones and transition areas.

Q8. Can Si₃N₄-SiC bricks be used in glass industry applications?
Yes, they are suitable for regenerator linings, tank superstructures, and areas exposed to aggressive glass melts.

Q9. What temperature resistance do these bricks provide?
They maintain structural integrity and strength at temperatures exceeding 1400°C.

Q10. Why choose Wedge India for Si₃N₄-SiC bricks?
Wedge India delivers international-standard refractories with reliable quality, competitive pricing, and global export capability to over 58 markets.

Nitride Bonded Silicon Carbide Refractory Bricks

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