Boron carbide (B₄c), ordo tertiam in duritia post Diamond et cubica boron nitride, transfigurat gravibus industria tooling per suam unique compositum de physica proprietatibus. Hoc ultra-durum Ceramic (28-35 GPA Vickers Duration) Nunc domatet XXIII% of provectus abrasives foro, praecipue in extremis metalla environments.