B4c (boron carbide) – is a crystalline compound of boron and carbon. it is an extremely hard synthetically produced material. b4c ceramic ensures maximum durability with the lowest weight among other comparables. b4c delivers the highest level of ballistic protection available and offers protection from virtually all rifles and handguns. ... Boron carbide (chemical formula approximately b4c) is an extremely hard boron–carbon ceramic, and covalent material used in tank armor, bulletproof vests, engine sabotage powders, as well as numerous industrial applications. with a vickers hardness of >30 Boron carbide buyers ☆ find 1 boron carbide buying leads from 1 boron carbide global buyers at ec21 ☆ choose boron carbide global buyers, importers, wholesalers and distributorsec21. Find boron latest buy offers, buying leads, rfqs from india, usa, kazakhstan, south korea, spain. tradewheel is a trusted buyers directory of boron importers, distributors, trade and purchasing managers.