NbW

metal
· JVASP-107537· NbW

NbW is a niobium-tungsten alloy combining two refractory metals known for exceptional high-temperature stability and strength. This material is employed in extreme-environment applications where conventional superalloys reach their limits, particularly in aerospace propulsion systems, nuclear reactor components, and high-temperature structural applications where resistance to thermal cycling and oxidation is critical. Engineers select NbW-based compositions when operating temperatures exceed the capability of nickel-based superalloys and when weight efficiency combined with creep resistance becomes essential, though such alloys typically require specialized processing and protective coatings due to oxidation susceptibility at elevated temperatures.

hypersonic vehicle structuresrocket nozzles and throat insertsnuclear thermal propulsionextreme high-temperature fastenersaerospace thermal protection systemsrefractory structural applications

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Density(ρ)
13.49
kg/m³—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
0.000
eV—
Magnetic Moment(μB)
0.000
µB—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
0.2203
eV/atom—
Formation Energy(ΔHf)
-0.05814
eV/atom—
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.