Black silicon carbide for stone polishing and grin

INTRODUCTION: Black silicon carbide is produced at high temperature in an electric resistance type furnace with quarts sand and petroleum coke as its main raw materials. CHARACTORS: Its hardness is between fused alumina and synathetic diamond. Mechanical intensity of it is hig-her than fused alumina.it is brittle and sharp and has electrical and heat conductivity in some degree. MAIN APPLICATION: The abrasives made of it are suitable for working on cast iron, non-ferrous metal, rock, leather, rubber, etc. It is also broadly used as refractory material and metallurgical additive. Available Specification SiC Content: 97%, 90% etc.GB/T2480-1996 GritSic F.C. Fe2O3 F12-F90≥98.50<0.20≤0.60F100-F150≥98.00<0.30≤0.80F180-F220≥97.00<0.30≤1.20F230-F400≥96.00<0.40≤1.20F500-F800≥95.00<0.40≤1.20F1000-F1200≥93.00<0.50≤1.20P12-P90≥98.50<0.20≤0.60P100-P150≥98.00<0.30≤0.80P180-P220≥97.00<0.30≤1.20P230-P500≥96.00<0.40≤1.20P600-P1500≥95.00<0.40≤1.20P2000-P2500≥93.00<0.50≤1.20