We are offering boron carbide. Characters are as follows:light densityhigh hardness and strengtherosion resistancehigh modulus of elasticityneutron absorberlow thermal conductivityboron carbide is smelted from boricacid and powdered carbon in electric furnace under high temperature.depending onhardness of 4950kgfmm2, it is even harder than diamond and cubic boronnitride.because of their high strength, low density, corrosion resistant, hightemperature resistant, low thermal conductivity, high modulus of elasticity, it isideal for a wide variety of applications.