Custom High-Strength Reaction-Sintered Silicon Carbide (SiC) Square Beams
Kiln Structural Support for Continuous Operation up to 1380°C
Dimensions: 30 mm * 40 mm * 900 mm | Wall Thickness: 5 mm
Upgrade your high-temperature kiln with our custom-engineered Reaction-Sintered Silicon Carbide (R-SiC) square beams. Designed for demanding thermal and mechanical environments, these beams provide superior structural support in shuttle, tunnel, and roller hearth kilns. Offering a maximum service temperature of 1380°C, exceptional load capacity, and excellent thermal shock resistance, they are the optimal, long-lasting alternative to heavier conventional materials. Request a quote for custom sizes tailored to your specific kiln geometry.
Key Features & Benefits
- High-Temperature Structural Integrity - Maintains strength and dimensional stability under continuous operation at temperatures up to 1380°C.
- Superior Mechanical Strength - High flexural strength at both ambient and elevated temperatures ensures reliable, long-term performance under load.
- Excellent Thermal Shock Resistance - Withstands rapid heating and cooling cycles without damage, reducing downtime and maintenance.
- Lightweight & Energy Efficient - Lower thermal mass compared to traditional supports enables faster kiln cycling and significant energy savings.
- Extended Service Life - Outperforms metal and many ceramic supports in high-temperature environments, reducing replacement frequency and total cost of ownership.
- Full Customization - Available in tailored dimensions, lengths, and with precision end-finishing to integrate seamlessly into your kiln design.
Technical Specifications: Reaction-Sintered SiC (R-SiC)
| Property |
Unit |
Typical Value |
| Density |
g/cm³ |
≥ 3.2 |
| Open Porosity |
% |
0.2 |
| Vickers Hardness (HV1) |
kg/mm² |
≥ 2100 |
| Flexural Strength (20 °C) |
MPa |
250 |
| Flexural Strength (1200 °C) |
MPa |
280 |
| Coefficient of Thermal Expansion |
10⁻⁶/K |
4.5 |
| Thermal Conductivity (1200 °C) |
W/(m*K) |
45 |
| Modulus of Elasticity |
GPa |
330 |
| Max. Continuous Service Temperature (in air) |
°C |
1380 |
Load-Bearing Capacity for Kiln Design
Engineered with a bending strength of 250 MPa and a 5x safety factor for reliable operation. The table provides reference values for a 1-meter span.
Load Capacity Reference Table (1-meter span)
| Cross-section (mm) |
Wall Thickness (mm) |
Max. Concentrated Load (kg) |
Max. Total Distributed Load (kg) |
| 30 * 30 |
5 |
74 |
147 |
| 30 * 40 |
5 |
117 |
235 |
| 40 * 40 |
5 |
149 |
298 |
| 50 * 50 |
6 |
283 |
567 |
| 50 * 60 |
6 |
374 |
748 |
| 60 * 60 |
7 |
481 |
962 |
Calculation Method
For a beam of length L (in meters):
- Max. Concentrated Load = (Table Value for Concentrated Load) * L
- Max. Total Distributed Load = (Table Value for Distributed Load) * L
Example: A 50*50 mm beam, 2 meters long, can support a total distributed load of 567 kg * 2 = 1,134 kg.
Typical Applications
These high-strength SiC beams are engineered as critical load-bearing components in:
- Shuttle Kilns
- Tunnel Kilns
- Roller Hearth Kilns
- Other high-temperature industrial furnace superstructures
Contact us for engineering support and a custom quotation based on your specific load, span, and temperature requirements.
