Long-lasting high-temperature resistant silicon carbide products

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 that of other materials, making it 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 without increasing the weight of kiln cars. Main Technical Indicators of Reaction-Bonded Silicon Carbide Products Item Unit Indicator 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) Thermal Expansion Coefficient K⁻¹×10⁻⁶ 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 = Tabulated Value × 1/L Uniform Load Resultant = Tabulated 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规格 products with complex shapes and strict tolerance requirements. Reaction-bonded silicon carbide 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.