Hexagonal Boron Nitride 1.Purity: 99.5%; 2.Size:0.5-1.5um; 3.Reasonable price; 4.High Quality. Hexagonal Boron Nitride powderApplicationsApplications of HBN are variety. It can be used in making TiB2/BN composited ceramics; advanced refractorys, supperhard materials, the separation ring of splitting rolling technology on horizontal continuous steel, high temperature resistance lubricants, high ...