Description

Black silicon carbide is produced at high temperature in an electric resistance type furnace with quarts sand and petroleum coke as its main raw marterials .Its hardness is between fused alumina and synthetic diamond.Mechanical intensity of it is higher than fused alumina .It is brittle and sharp has electrical and heat conductivity in some degree.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.
Abrasives grade
Grit size: *6#,*0#,*4#*0#,*6#,*6#,*4#,*0#,*0#,**0#,**0#,**0#,**0#,**0#
Micropowder:**0#,**0#,**0#,**0#,**0#,**0#,**0#,**0#,***0#,***0#,***0#
            ***0#,***0#,***0#,***0#
Refractory  grade:**0mm,**1mm,**3mm,**8mm ***0mesh,***0mesh,***0mesh
The physical and chemical analysis
SIC   MIN  *8%
F.C.   MAX  0.*5%
Fe2O3  MAX 0.7%
Crystal system   Hexagonal
Color            Black
Micro Hardness   HV********0
Grinding ability(compared with diamond as one)  0.*5
Hardness(mohs)   9.*5
Ture density    3.*2 g/cm3
Bulk density     1.***1.*6g/cm3