Product
	- ＜ Refractory Materials and Abrasives - ＜ Boron Carbide     Boron carbide, a black crystal powder, is one of the hardest Man-Made materials, its hardness with Mohs hardness 9.36 and microscopic hardness 5400-6300kg/mm2 is only near upon diamond, its density 2.52g/cm3 and melting point at 2450,The boron carbide possesses properties of endurance hi/low temperature, no reaction with either acids or alkalis, high grinding efficiency, no magnetism. It is a good replacement of diamond. Boron carbide also possesses the specialty properties of light quality, neutron absorbing, semi-conductivity, etc. so it is used in armed forces and nuclear industry. Specifications: B4C        91-98% Total B    74-80% Total C    17-21% Size: Refractory grade: -100mesh, -140mesh, -200mesh, -325mesh Abrasive grade: F60-F220, F230-1200 Micropowder: -25µm, -10µm Packing: 25kgs bag on 1MT big bag or 25Kgs wood barrel