K3W — Properties & Data | MatWorld

K3W

metal

· JVASP-39243· K3W

K3W is a tungsten-based metal alloy in the refractory metal family, engineered for extreme-temperature and high-wear applications where conventional steels cannot perform. Its tungsten content provides exceptional hardness and melting point stability, making it valuable in aerospace, tooling, and industrial heating applications where thermal cycling and abrasive contact are routine. Engineers select K3W when superior wear resistance and thermal performance justify the material cost and density compared to standard tool steels or nickel-based superalloys.

high-temperature bearingsmachining tools and diesaerospace engine componentswear-resistant insertsfurnace liningsimpact-resistant applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	1,156	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3500	-	DFT · OptB88vdW
Shear Modulus(G)	641.1	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1049	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	0.000	eV	DFT · OptB88vdW
↳	0.000	eV	DFT · TBmBJ
Magnetic Moment(μB)	5.095	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000476	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000533	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-19.66	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-21.02	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)	1.458	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	1.312	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.

K3W

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control