American elements specializes in producing high purity boron carbide powder with the smallest possible average grain sizes for use in preparation of pressed and bonded sputtering targets and in chemical vapor deposition (cvd) and physical vapor deposition (pvd) processes including thermal and electron beam (e-beam) evaporation, low temperature ... What is hexagonal boron nitride powder? this product has structure and properties similar to graphite. hexagonal boron nitride powder is one of the most popular dry lubricants available today, due mostly to its lubricant properties and its inertness to molten metals and salts. it is therefore often used as a mold release agent. Boron carbide powder, −200 mesh, 98% synonym: carbon tetraboride cas number 12069-32-8. linear formula cb 4. molecular weight 55.25 . ec number 235-111-5. mdl number mfcd00011520. pubchem substance id 24863542. nacres na.23 Alibaba offers 1,872 boron carbide powder products. about 50% of these are other metals & metal products, 24% are abrasives, and 1% are tool parts. a wide variety of boron carbide powder options are available to you, such as free samples, paid samples.