Boron carbide is one of the hardest man-made materials available in commercial quantities that has a finite melting point low enough to permit its relatively easy fabrication into shapes. some of boron carbide’s unique properties include: high hardness, chemical inertness, and a high neutron absorbing cross section. washington mills is the only manufacturer of boron carbide (b4c) There are 3,128 boron carbide nozzle suppliers, mainly located in asia. the top supplying countries or regions are china, sri lanka, and india, which supply 99%, 1%, and 1% of boron carbide nozzle respectively. boron carbide nozzle products are most popular in eastern europe, western europe, and north america. Boron carbide price manufacturer/supplier, china boron carbide price manufacturer & factory list, find qualified chinese boron carbide price manufacturers, suppliers, factories, exporters & wholesalers quickly on made-in-china. Alibaba offers 2,491 boron carbide sandblasting nozzle products. about 76% of these are cleaning equipment parts, 4% are tool parts, and 1% are other welding & soldering supplies. a wide variety of boron carbide sandblasting nozzle options are available to you, such as milling, broaching, and drilling.