WN2 — Properties & Data | MatWorld

WN2

metal

· WN2

WN2 is a tungsten-based refractory metal alloy, likely a tungsten-nickel or tungsten-nickel-iron composite designed for high-temperature and high-strength applications. This material is valued in aerospace, defense, and industrial heating applications where exceptional hardness, thermal stability, and resistance to wear are required at elevated temperatures.

aerospace engine componentshigh-temperature toolingradiation shieldingwear-resistant dies and punchesdefense ordnance applicationsindustrial heating elements

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	368.5	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2400	-	DFT · OptB88vdW
Shear Modulus(G)	230.0	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	12.07	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	1.758	eV	DFT · OptB88vdW
↳	1.791	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)2 entries	15.00	-	DFT · OptB88vdW
↳	13.44 range 13.42–13.46median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	13.92	-	DFT · OptB88vdW
↳	13.23	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.5633	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.5067	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	0.6880	C/m²	DFT · OptB88vdW
↳	0.1078	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
Thermoelectric Power Factor(PF)2 entries	0.00428	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00156	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-295.8	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	171.2	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	27.51	%	DFT · TBmBJ

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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.2478	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.4076	eV/atom	DFT · OptB88vdW

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

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

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.

WN2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

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