Refractory Silicon Carbide

Black Silicon Carbide grains for refractory applications. Used in the manufacture of high - temperature refractories, Kiln furniture, bricks, platesetters and other special refractory shapes and crucibles.

Physical Characteristics

• Crystal Form: Hexagonal
• True Specific Gravity: 3.20
• Hardness: Knoop 2500; Moh 9.0-9.5
• Bulk Density Range: 1.45-1.75 gms/cc-depending upon grain size.
• Reaction with Acids: Inert. Very Slight reaction with boiling hydrofluric acid - nitric acid.
• Reaction with Alkalies: Inert. Slight reaction with hot strong alkalies.
• Melting point: Dissociates at approximately 23000C.