Silicon carbide(Natural block) It is produced from quartz sand and high quality anthracite under high temperature in an electric resistance furnace. It is fit for process the grind metals and non-metals material of low tensile strength, such as grey cast iron, brass, aluminum, stone, leather and hard rubber etc. Also can be used as refractory materials and in electronic industry. Spe SiC (%) Fe2O3 (%) F.C (%) Moisture (%) CaO (%) MgO (%) Al2O3 (%) SuperGrade 98.5min 0.2max 0.2max 0.5max 0.02 0.02 0.03 1st Grade 97.5min 0.3max 0.6max 0.5max 0.05 0.05 0.05 2nd Grade 88-90 2.5max 3max 0.5max 1.5 1.5 2.5 3rd Grade 70-75 * * 1max * * * Packing and Size As clients demands Silicon carbide(Raymond mill machining) SiC (%) Fe2O3 (%) F.C (%) Moisture (%) CaO (%) MgO (%) Al2O3 (%) SuperGrade 98.5min 0.2max 0.2max 0.5max 0.02 0.02 0.03 1st Grade 97.5min 0.3max 0.6max 0.5max 0.05 0.05 0.05 2nd Grade 88-90 2.5max 3max 0.5max 1.5 1.5 2.5 Packing and Size As clients demands Silicon carbide(Barmac breaker and Ball mill machining) SiC (%) Fe2O3 (%) F.C (%) Moisture (%) CaO (%) MgO (%) Al2O3 (%) SuperGrade 98.5min 0.2max 0.2max 0.5max 0.02 0.02 0.03 1st Grade 97.5min 0.3max 0.6max 0.5max 0.05 0.05 0.05 Packing and Size As clients demands Silicon carbide(Jet milling machining) SiC (%) Fe2O3 (%) F.C (%) Moisture (%) CaO (%) MgO (%) Al2O3 (%) SuperGrade 98.5min 0.2max 0.2max 0.5max 0.02 0.02 0.03 1st Grade 97.5min 0.3max 0.6max 0.5max 0.05 0.05 0.05 Packing and Size As clients demands