Consistent with its focus on engineered carbonaceous materials, superior graphite offers a range of high purity silicon carbide and boron carbide powders for sintered or hot pressed parts, coatings, and additives. known for their extreme hardness, low specific gravity, and elevated temperature performance, these materials are used for ballistic armor, abrasives, composites, brake linings ... This dia-bore (boron carbide) powder/paste is widely recognized for its extremely hard surface, thus, serves as a multipurpose abrasive and lapping agent. being, next to diamond and cubic boron nitride in terms of hardness,it is ideal for a range of materials right from plastics, nonferrous metals and... Delmon is one of the largest producers of high purity silica sand materials in the gcc community. delmon is a market driven company with a strategically located facilities in saudi arabia that could cater global distribution. telephoneuff1a966-03-8577777 addressuff1a6800, dammam, other, saudi arabia. delmon co. ltd., Nov 03, 2019u00a0u00b7 production show high purity boron carbide price 99% b4c powder boron carbide produc description boron carbide, black powder, is the hardest of the conventional abrasives. its mohs hardness is 9.36, melting point 2350℃, density 2.51g/cm3.