Black ,frangible and sharp,good thermal conductivity and electric conductivity . Raw material are petroleum coke and quality silicon sand ,appended with salt ,then smelt in electric arc furnace.
Microcosmic shape is a hexagonal crystal ,
mohs hardness is 9.3 ,
microhardness is 2940-3300kg/mm2,
density generally view is 3.20-3.25g/mm3 ,
density of heap is 1.2-1.6g/mm3,
specific gravity is 3.20-3.25.
Main application: solar wafer,semiconductor wafer and quartz chip wire sawing and lapping;bonded and coated abrasive tools:stone polishing;processing metal and non-ferrous metal with low tensile strength ,such as:gray pig iron ,brass,aluminum ,stone,leather and rubber.
Standard： FEAP- F (For bonded abrasives),
FEPA- P (For coated abrasives)
Grit available: Grit FEPA F12 – F220#.
Grit FEPA P12-220#.
Other sizes are alsoavailable on request.