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Boron Nitride

Boron Nitride Product Classification Introduction

Boron nitride (BN) is a premium functional boron-based material with an extremely versatile set of properties. BoronHub offers two core product lines: hexagonal boron nitride (h-BN) and cubic boron nitride (CBN), serving multiple high-end industries such as lubrication, thermal management and superhard precision machining.

Hexagonal Boron Nitride (h-BN)

Nicknamed "white graphite", h-BN is pure white powder that integrates excellent high-temperature lubricity, high thermal conductivity, superior electrical insulation, chemical inertness and strong neutron absorption capacity. BoronHub supplies customized flaky h-BN powder with high purity and high crystallinity, with particle sizes reducible to less than 1 μm. Its typical application scenarios include high-temperature release agents, chip thermal interface materials, aerospace wave-transparent composites, neutron shielding materials for nuclear power, and functional fillers for luxury cosmetics.

Cubic Boron Nitride (CBN)

CBN is a superhard material whose hardness is second only to diamond. Its wear resistance exceeds that of conventional abrasives by over four times, paired with outstanding thermal stability and chemical inertness, making it perfectly suited for high-precision grinding of ferrous metals and their alloys. BoronHub provides single-crystal CBN (HBCBN series, Ti hardness index: 63–76) and CBN micropowder (12 grades with D50 ranging from 1.25 μm to 32 μm) compatible with all types of binder systems. It is widely used in CBN grinding wheels, PCBN cutting tools, automotive component precision machining and heat dissipation for electronic packaging.

Supported by high purity, exceptional thermal stability, a full spectrum of particle sizes and flexible customization services, BoronHub delivers comprehensive boron nitride material solutions for global clients.

Hexagonal Boron Nitride (h-BN) Powder With 99.5% Purity Cas No.10043-11-5
Hexagonal Boron nitride (h-BN), also referred to as "white graphite", possesses a hexagonal layered crystal structure analogous to graphite. It appears as fluffy, lightweight pure white powder with a Mohs hardness of 2 and soft texture. It delivers a comprehensive set of outstanding properties: excellent high-temperature lubricity, thermal conductivity roughly 10 times that of quartz, low thermal expansion coefficient, superior thermal shock resistance, reliable electrical insulation and low dielectric loss. It can withstand temperatures up to 2800 °C under nitrogen atmosphere. Chemically stable, h-BN is inert to molten metals and resistant to acid and alkali corrosion, while featuring strong neutron absorption capacity. BoronHub offers custom h-BN powder with high purity, high crystallinity and flaky morphology, with particle sizes processable down to less than 1 μm. Widely applied in high-temperature solid lubricants, release agents for metal forming, chip thermal management, thermally conductive polymer fillers, high-temperature refractories, aerospace wave-transparent materials, nuclear neutron shielding and premium cosmetic fillers, it is an indispensable multi-functional material for high-end manufacturing.
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Cubic Boron Nitride (CBN) Monocrystal And Micropowder Cas No.10043-11-5
Cubic Boron nitride (CBN) is a superabrasive featuring ultra-high strength and exceptional wear resistance. As a core superhard material, it stands as the preferred choice for advanced grinding systems and is widely adopted for grinding ferrous metals and alloy steels. Serving as the key raw material for high-performance grinding wheels, it delivers remarkable improvements in machining efficiency, workpiece surface quality and overall cost reduction. Compared with conventional abrasives such as alumina and silicon carbide, CBN boasts outstanding superiority in hardness, wear resistance and thermal conductivity. Its hardness and wear resistance are over four times higher than traditional abrasives. Particularly ideal for ferrous metal machining, it addresses common drawbacks of conventional abrasives including rapid wear, low processing efficiency and poor workpiece finish, driving technological upgrading across the grinding industry.
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