B

Name: B
Brand: MatWorld

metal

· B

Material B is a metal with a low density relative to its stiffness characteristics, suggesting it may be a lightweight structural metal or intermetallic compound. Without specified composition details, it likely belongs to a family such as aluminum alloys, magnesium alloys, or titanium-based systems commonly engineered for high strength-to-weight performance. Applications span aerospace structures, automotive components, and defense systems where reducing mass while maintaining rigidity is critical; engineers select this class of material when weight reduction directly improves fuel efficiency, payload capacity, or dynamic performance.

aerospace structuresautomotive chassis componentslightweight defense applicationsstructural framesprecision machinery partsvibration-critical assemblies

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	32,233.2	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.1100	-	DFT · OptB88vdW
Shear Modulus(G)	33,629.9	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.09231	lb/in³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	1.687	eV	DFT · OptB88vdW
↳	1.786	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	9.620 range 9.558–9.683median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	9.267	-	DFT · OptB88vdW
↳	8.910	-	DFT · TBmBJ
Electron Effective Mass(m*e)	1.107	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.6667	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00362	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00127	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-347.2	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	118.4	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	27.61	%	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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	0.02302	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.

B — Properties & Data | MatWorld

B

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control