Fe4 B4 W4

semiconductor

· Fe4 B4 W4

Fe4B4W4 is an iron-boron-tungsten intermetallic compound that belongs to the class of hard, refractory materials combining ferromagnetic iron with boron and tungsten strengthening elements. This material is primarily of research and development interest for high-temperature and wear-resistant applications, where the combined contributions of tungsten (hardness, density) and boron (solid-solution strengthening) to an iron matrix create potential for demanding industrial environments; however, it remains largely experimental with limited commercial deployment compared to established tool steels, tungsten carbides, or nickel-based superalloys.

wear-resistant coatingshigh-temperature applicationstool materials (experimental)refractory alloys (research)cutting/abrading surfacesmagnetic applications (potential)

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00540	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.5260	eV/atom	—

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

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.

Fe4 B4 W4

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control