Mohs hardness 9.5         Micro hardness 2840-3320Kg\mm2        Color Black or dark green

It is the mixture of high quality green silicon carbide(hard,chemical stable,tough) as the main raw material and other material,its hardness is between corundum and diamond

at high temperature(1000℃),It can still maintain inherent hardness and strength.

No recation with non metallic(glass cermic) and some metal material (Zinc,steel and alloy)

Its suitable forprocessing glass,ceramic,stone,cast iron and some non metallic,hard alloy,high speed steel etc