WF4

metal

· JVASP-30618· WF4

WF4 is a tungsten-based metal or alloy, likely part of the tungsten-fluorine or tungsten-containing compound family. Without specified composition details, it appears to be a specialized tungsten material engineered for high-performance applications where tungsten's exceptional density, thermal properties, and hardness are critical. This material is typically found in aerospace, defense, and industrial applications requiring materials with superior strength-to-weight ratios and extreme environmental stability, offering advantages over conventional steels and aluminum alloys in demanding service conditions.

aerospace structural componentshigh-temperature applicationsradiation shieldingindustrial toolingdefense systemswear-resistant surfaces

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2254	lb/in³	DFT · OptB88vdW

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

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.1300	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	27.53	-	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00311	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00314	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	148.7	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	145	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

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)	0.2031	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.319	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.

WF4 — Properties & Data | MatWorld

WF4

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control