Green silicon carbide/green SiC sand 40# 46# 54# 60# 70# Green silicon carbide/green SiC sand 40# 46# 54# 60# 70# is made of petroleum coke and high quality silica as the main raw material, salt as the additive and smelted in the resistance furnace at high temperature.Green crystal, crisp and sharp, and has a certain thermal and electrical conductivity.The microstructure is hexagonal crystal. Abrasives models: Grain: 16#,20#,22#,24#,30#,36#,40#,46#,54#,60#,70#,80#,90#,100#,120#,150#,180#,220#,240# Micropowder: (FEPA) F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500 (JIS) 240#,280#,320#,360#,400#,500#,600#,4700#,800#,1000#,1200#,1500# 2000#,2500#,3000#,4000#,6000#,8000#,10000#