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, resists bending and deformation during long-term use, and has a service life several times longer than materials of other compositions. It is an ideal kiln furniture for industries such as sanitary ceramics and electrical porcelain. The product exhibits excellent high-temperature flexural strength, thermal shock resistance, and oxidation resistance. It remains deformation-free over prolonged use, significantly reduces energy consumption, and does not increase the weight of kiln cars. Main Technical Indicators of Reaction-Bonded Silicon Carbide Products: Item | Unit | Data --- | --- | --- Service 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) | 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.