Черный карбид кремния (абразивный)

It is a kind of man man-made materials, and is smelted in an arc furnace from a mixture of nature silicon, coal (or cola) and small salt at the temperature of 2000-2500C. a wide use of sic is in abrasive whell, refractory and ceramic materials etc. 1. physical properties color hardness True density Melting pint Black Mohs 9.2min 3.20g/cm3 2600C 2.chemical analysis Grit SIC (>%) F.C (<%) Fe203 (<%) F12-F90 98.5 0.2 0.4 F100-F150 98 0.3 0.6 F180-F220 97 0.3 0.8 F240-F400 96 0.4 0.8 F500-F800 95 0.4 0.8 F1000-F1500 93 0.5 0.8 3. Grit available For bonded abrasive F12-F1500 (FEPA and JIS standard) Bulk density (g/cm3) Grit no F14 F16 F20 F24 F30 F36 F46 B.D 1.57 1.57 1.57 1.56 1.56 1.56 1.54 Grit no F60 F70 F80 F100 F120 F150 F180 B.D 1.53 1.46 1.46 1.44 1.44 1.42 1.41 For coated abrasive P24-P1500 (FEPA and JIS standard)