Reaction-bonded silicon carbide square beams are suitable for load-bearing structural frames in tunnel kilns, shuttle kilns, double-layer roller hearth kilns, and other industrial kilns. This product offers high load-bearing capacity at elevated temperatures, does not bend or deform during long-term use, and has a service life several times longer than materials of other compositions, making it an ideal kiln furniture for industries such as sanitary ceramics and electrical porcelain. It exhibits excellent high-temperature flexural strength, thermal shock resistance, and oxidation resistance, maintaining its shape over prolonged use. It significantly reduces energy consumption without increasing the weight of kiln cars. Main Technical Indicators of Reaction-Bonded Silicon Carbide Products Item | Unit | Data Operating Temperature | °C | 1380 Density | g/cm3 | ≥3.02 Porosity | % | <0.1 Flexural Strength | MPa | 250 (20°C) | MPa | 280 (1200°C) Elastic Modulus | GPa | 330 (20°C) | GPa | 300 (1200°C) Thermal Conductivity | W/m·K | 45 (1200°C) Coefficient of Thermal Expansion | K?1×10?? | 4.5 Mohs Hardness | | 13 Acid and Alkali Resistance | | Excellent Square Beam Load-Bearing Capacity Table Length (m) | Cross-Section Dimensions | Concentrated Load (kg) | Uniform Load Resultant (kg) L | B | H | δ 1 | 30 | 40 | 6 | 130 | 260 1 | 40 | 40 | 6 | 165 | 330 1 | 40 | 50 | 6 | 235 | 470 1 | 50 | 70 | 7 | 526 | 1052 1 | 60 | 90 | 9 | 1059 | 2118 The flexural strength of reaction-bonded silicon carbide square beams is calculated based on 250 MPa, with a safety factor of 5, and the load-bearing capacity is determined for a length of 1 meter. If the product length is L, the load-bearing capacity can be calculated using the following formulas: Concentrated Load = Surface Value × 1/L Uniform Load Resultant = Surface Value × 1/L This load-bearing capacity is applicable at a temperature of 1380°C. Reaction-bonded silicon carbide is one of the most widely used refractory ceramic products. Reaction-bonded silicon carbide products are manufactured using slip casting technology, combined with our net-size sintering technology and exceptional finishing capabilities, making them highly suitable for producing ultra-large規(guī)格 products with complex shapes and strict tolerance requirements. These products have been successfully applied in metallurgy, chemical raw material processing, transportation of highly corrosive and wear-resistant fluid materials, mechanical seals, powder processing, automotive, manufacturing, aerospace, and other fields.