NbCrW

metal

· NbCrW

NbCrW is a refractory metal alloy combining niobium, chromium, and tungsten, designed for extreme-temperature and high-stress applications where conventional superalloys reach their limits. This material family is primarily used in aerospace propulsion systems, ultra-high-temperature structural components, and specialized welding applications where resistance to oxidation, thermal fatigue, and mechanical degradation at elevated temperatures is critical. Engineers select NbCrW-type alloys when weight savings, thermal efficiency, and extended service life at temperatures beyond nickel-based superalloys justify the material's cost and processing complexity.

hypersonic aircraft structuresrocket engine componentsrefractory liningshigh-temperature fastenerswelding electrodes for extreme environmentsthermal barrier applications

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	23,999.4	ksi	—
Shear Modulus(G)	-438	ksi	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Density(ρ)	0.3578	lb/in³	—

Verified Unverified Low confidence (<80%) Link to source

Property	Unit	Conditions
Band Gap(Eg)2 entries	eV	—
↳	eV	—
Magnetic Moment(μB)	µB	—

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, or test environment.

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.9811	eV/atom	—
Formation Energy(ΔHf)	0.7789	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.

NbCrW

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control