High Purity 90% 99% Black SiC Carborundum Silicon Carbide Powder Blasting Media for Polishing 24-240# Abrasive Grain Size

Specification CHEMICAL CONTENT SiC 98% min SiO2 1% max H2O3 0.5% max Fe2O3 0.4% max F.C 0.4% max Magnetic Material 0.02% max PHYSICAL PROPERTIES Moh's Hardness 9.2 Melting Point 2300℃ Working Temperature 1900℃ Specific Gravity 3.2-3.45 g/cm3 Bulk Density 1.2-1.6 g/cm3 Color Black and Green Silicon Carbide Elasticity Modulus 58-65x106psi Coefficient of Thermal Expansion 3.9-4.5 x10-6/℃ Thermal Conductivity 71-130 W/m.K Grain Size 0-1mm,1-3 mm, 3-5mm, 5-8mm,6/10, 10/18,200