9 export shipments of boron carbide = 4 pallets boron carbide b4c, grade hd 15 drum 60l hs code:... 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 powder suppliers boron ultra 12 powder, boron citrate powder, amorphous boron powder manufacturers buy boron powder for agriculture, neodymium iron boron powder, check boron powder price. boron is a chemical element which have atomic number 5 and symbol b.