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Thermally Stable Recrystallized Silicon Carbide Ceramic Square Beams Designed for Load Bearing and Long Term in High Temperature Kilns

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High-Temperature Kiln Furniture for Heavy-Duty Industrial FurnacesRecrystallized Silicon Carbide Square Beams (RSiC Beams) are high-performance structural ceramic components designed for load-bearing applications in industrial kilns and high-temperature furnaces.Manufactured from high-purity silicon ...

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Thermally Stable Square Beams

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High Temperature Kilns Square Beams

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Load Bearing Square Beams

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High-Temperature Kiln Furniture for Heavy-Duty Industrial Furnaces

Recrystallized Silicon Carbide Square Beams (RSiC Beams) are high-performance structural ceramic components designed for load-bearing applications in industrial kilns and high-temperature furnaces.

Manufactured from high-purity silicon carbide through advanced slip casting and recrystallization sintering above 2500°C, RSiC square beams provide outstanding thermal shock resistance, dimensional stability, oxidation resistance, and long-term reliability at temperatures up to 1650°C.

Their lightweight yet robust structure makes them an ideal solution for kiln furniture systems requiring stable support under repeated thermal cycling.


Why Choose RSiC Square Beams?
Excellent Thermal Shock Resistance

With high thermal conductivity and low thermal expansion, RSiC beams withstand rapid heating and cooling cycles without cracking.

Ideal for:

  • Tunnel kilns
  • Roller kilns
  • Shuttle kilns
  • Fast-firing systems

Reliable High-Temperature Load Capacity

Unlike many refractory materials, RSiC maintains stable mechanical performance at elevated temperatures.

  • Flexural Strength @ 20°C: 90–100 MPa
  • Flexural Strength @ 1200°C: 100–110 MPa
  • Compressive Strength: 300 MPa

This allows the beam to support heavy kiln loads while maintaining structural integrity throughout the firing cycle.


Lightweight Structure

Bulk Density:

2.65–2.75 g/cm³

The lightweight design helps:

  • Reduce kiln car weight
  • Lower energy consumption
  • Minimize support loading
  • Improve operational efficiency

Long Service Life

RSiC forms a protective silica layer during operation, providing excellent oxidation resistance and stable performance in oxidizing atmospheres up to 1650°C.

Benefits include:

  • Reduced maintenance frequency
  • Lower replacement costs
  • Improved kiln uptime

Technical Specifications
PropertyUnitValue
SiC Content%≥99
Bulk Densityg/cm³2.65–2.75
Apparent Porosity%≤17
Flexural Strength (20°C)MPa90–100
Flexural Strength (1200°C)MPa100–110
Compressive StrengthMPa300
Hardnesskg/mm²1800–2000
Fracture ToughnessMPa·m½1.8–2.0
Thermal Conductivity @1200°CW/m·K35–36
Thermal Expansion Coefficient×10⁻⁶/K4.6
Thermal Shock ResistanceVery Good
Maximum Service Temperature°C1650

Standard Dimensions
Width (mm)Height (mm)Max Length (mm)
30301500
30401500
40401500
40501500
40602000
50502000
50602000
50702000
60902600
80802600
1001002600
1101102600

Custom dimensions are available upon request.


Typical Applications

RSiC Square Beams are widely used in:

Advanced Ceramic Kilns
  • Alumina ceramics
  • Zirconia ceramics
  • Honeycomb ceramics
  • Technical ceramics
Lithium Battery Material Furnaces
  • Cathode material production
  • Anode material processing
  • Continuous roller kiln systems
Refractory Manufacturing
  • Kiln support structures
  • High-temperature firing systems
Sanitaryware & Tableware Kilns
  • Tunnel kilns
  • Shuttle kilns
  • Energy-efficient firing systems

Custom Manufacturing Service

Hitech Ceram provides customized RSiC square beams based on customer drawings and operating conditions.

Available options:

  • Custom lengths
  • Precision grinding
  • Special surface finishes
  • Machined holes and slots
  • Custom kiln furniture assemblies

Frequently Asked Questions
What is the maximum working temperature of RSiC square beams?

RSiC square beams can operate continuously up to 1650°C in oxidizing atmospheres.

What is the difference between RSiC and SSiC beams?

RSiC offers superior thermal shock resistance and lower weight, while SSiC provides higher strength, lower porosity, and better corrosion resistance.

Can you manufacture custom sizes?

Yes. Custom cross-sections, lengths, and machining services are available according to customer drawings.

Are RSiC beams suitable for lithium battery kilns?

Yes. RSiC beams are widely used in lithium battery material production lines because of their excellent thermal stability and long service life.


Request a Quote

Looking for reliable kiln furniture for high-temperature applications?

Hitech Ceram supplies custom Recrystallized Silicon Carbide (RSiC) Square Beams for:

  • Tunnel Kilns
  • Roller Kilns
  • Shuttle Kilns
  • Lithium Battery Furnaces
  • Advanced Ceramic Production Lines

Contact our engineering team today for technical recommendations and pricing.

https://www.hitech-ceram.com/

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