Nb3B4

metal
· Nb3B4

Nb₃B₄ is a niobium boride intermetallic compound belonging to the refractory metal boride family, valued for its combination of high hardness and structural rigidity at elevated temperatures. This material is primarily investigated in research and advanced manufacturing contexts for applications requiring exceptional wear resistance and thermal stability, where traditional steel or nickel-based superalloys reach their performance limits. Engineers consider niobium borides as candidates for extreme-environment components because the niobium-boron system offers superior hardness compared to many conventional tool materials and maintains mechanical integrity in harsh conditions, though commercial adoption remains limited compared to more established ceramics and composites.

cutting tools and wear surfaceshigh-temperature structural componentsrefractory applicationsresearch and development materialsextreme environment engineering

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
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Bulk Modulus(K)2 entries
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Poisson's Ratio(ν)
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Shear Modulus(G)2 entries
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N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
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Density(ρ)
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Band Gap(Eg)
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Magnetic Moment(μB)
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Energy Above Hull(ΔEhull)
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Formation Energy(ΔHf)
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Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.