Senior abrasives 98.5%min Black silicon carbide for grinding glass

Black silicon carbide       Black Silicon Carbide is produced in a high temperature electric resistance-type furnace from a mixture of quartz sand and petroleum coke. The hardness of black silicon carbide is greater than fused alumina but less than synthetic diamond. Its mechancial intensity is greater than fused alumina, but is brittle and very sharp. The mineral has some electrical and heat conductivity. Black silicon carbide is typically used for machining or finishing cast iron ,non-ferrous metals, stone, leather, rubber, and other materials where sharp cutting characteristics are important .   black silicon carbide Available size :  

Grit	um	grit	um
16#	1400-1180	120#	125-106
20#	1180-1000	150#	106-75
22#	1000-850	180#	90-63
24#	850-710	220#	75-53
30#	710-600	240#	75-53
36#	600-500	W63	63-50
40#	500-425	W50	50-40
46#	425-355	W40	40-28
54#	355-300	W28	28-20
60#	300-250	W20	20-14
70#	250-212	W14	14-10
80#	212-180	W10	10-7
90#	180-150	W7	7-5
100#	150-125	W5	5-3.5