Boron carbide hardness of 4950kgf/mm2.it is high hardness and strength, low density, corrosion resistant, high temperature resistant, low thermal con contact now sell high pure u2026 Buy any quantity nano boron carbide b4c powder from boron carbide powder suppliers in india. all india metal corporation is an iso certified stockist and supplier of high purity boron carbide powder with a wide product range, reliable traders, exporters and effective sourcing. 35 years of experience of manufacturing boron carbide b4c powder Boron carbide is a black crystalline compound, one of the hardest known materials and is the hardest material produced in tonnage quantities. production of boron carbide is by a carbothermal reduction of boron oxide (b2o3), by reacting boron oxide with carbon in an electric arc furnace or by gas reactions to produce coatings directly. High quality wholesale boron carbide b4c powder f1200 abrasive powder b4c powder for lapping and polishing, grinding color : black state : powder smelting point : 2450 centigrade origin : dalian, china brand name: zx type: fepa standard or customers' requirement application : industrial products particle size : as per customers requirement.