Reaction-bonded silicon carbide rods exhibit excellent high-temperature flexural strength, oxidation resistance, extreme wear resistance, and do not fracture or bend under prolonged high-temperature use. They are suitable for high-temperature firing zones in roller kilns for daily ceramics, sanitary ceramics, architectural ceramics, glass, and magnetic materials. Their service life is more than 10 times that of alumina ceramic rods. 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/45 (1200°C) Thermal expansion coefficient K?1×10?? 4.5 Mohs hardness 13 Acid and alkali resistance Excellent Rod load-bearing capacity table Length (m) Cross-section dimensions Concentrated load capacity (kg) Uniform load resultant (kg) L D1 D2 δ 1 35 23 6 70 140 1 40 28 6 97 194 1 45 33 6 130 260 1 60 46 7 283 566 1 80 46 8 604 1208 The flexural strength of reaction-bonded silicon carbide square beams is calculated at 250 MPa, with a safety factor of 5, and the load capacity is determined for a length of 1 meter. If the product length is L, the load capacity can be calculated using the following formulas: Concentrated force = surface value × 1/L, uniform load resultant = surface value × 1/L. This load capacity is applicable at 1380°C.