WS — Properties & Data | MatWorld

WS

metal

· JVASP-36045· WS

WS is a dense metallic material, likely a tungsten-based alloy or composite given its high density and designation. Without complete compositional data, this appears to be either a tungsten-heavy alloy (possibly tungsten-nickel-iron or similar) commonly used in applications requiring exceptional density and radiation shielding, or potentially a research-phase material. Tungsten-base systems are valued in aerospace, defense, and medical imaging for their combination of high density, thermal stability, and radiation absorption properties, offering advantages over lead in shielding applications due to superior strength and lower toxicity concerns.

radiation shieldingaerospace counterweightsmedical imaging collimationkinetic energy penetratorshigh-temperature applicationsvibration damping

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	11.03	kg/m³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	DFT · OptB88vdW
↳	0.000	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	72.19	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	1.519	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.0000418	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000143	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-0.8800	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	12.58	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)	0.3658	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.5202	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.

WS

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control