Boron Carbide, 1.Mohs hardness is 9.36, 2.melting point 24500c, 3.density 2. ... powder, is the hardest of the conventional abrasives, Its Mohs hardness is 9.36, melting point 24500c,density 2.51g/cm3 ... contact usGrace ZHaoTel :+86 371 63691217Fax:+86 371 63691212 High Hardness Boron Carbide