Hexagonal Boron Nitride (h-BN)
Hot-pressed hexagonal boron nitride — "white graphite". Unique among ceramics: soft (Mohs 2), easily machinable with conventional tools, self-lubricating. Excellent thermal shock resistance, high-temperature stability (2800°C in inert atmosphere). Good thermal conductivity (30–60 W/m·K) combined with outstanding electrical insulation. Anisotropic properties. Not wetted by most molten metals. Applications: BN crucibles for metal melting, break rings for continuous casting, high-temp insulators, evaporation boats, plasma-resistant parts, solid lubricant.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇬🇧 | Precision Ceramics | United Kingdom | PCBN1000/3000/4000/5000 | — | % |
| 🇫🇷 | Saint-Gobain | France | Combat HP | — | % |
| 🇺🇸 | Momentive | USA | HBN | — | % |
| 🇩🇪 | Henze | Germany | HeBoSint | — | % |
Sources: precision-ceramics.com, saint-gobain.com, momentive.com, henze-bnp.de
Mechanical properties
Compatibility verdict
Hexagonal Boron Nitride (h-BN) and PCBN1000/3000/4000/5000: null% composition match
Related materials
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All data is for reference only. Equivalents indicate similarity, not identity. Always verify against the applicable specification for safety-critical applications. materialref.com accepts no liability for decisions based on this data.