... the hardest of the conventional abrasives, Its Mohs hardness is 9.36, melting point 24500c,density 2. ... features: neutron absorbing,of semi-conductivity, low thermal conductivity,high grinding efficiency and no reaction with either ... and polish hard metal alloy, super-hard metal, high carbide steel, jewel, hard ceramic and other hard ... :+86 371 63691217Fax:+86 371 63691212 High Hardness Boron Carbide