Ir4W

metal

· JVASP-106797· Ir4W

Ir4W is a high-density iridium-tungsten alloy combining two of the densest refractory metals, designed for extreme-environment applications requiring exceptional hardness, thermal stability, and resistance to corrosion. This alloy is typically used in specialized aerospace, nuclear, and precision engineering sectors where conventional superalloys reach their performance limits, and is valued for applications demanding both weight efficiency and material integrity at elevated temperatures or in chemically aggressive environments.

aerospace engine componentsnuclear reactor materialshigh-temperature cruciblesprecision tool insertsradiation shieldingresearch/specialized alloys

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.7644	lb/in³	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	—
Magnetic Moment(μB)	0.000	µB	—

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.2018	eV/atom	—
Formation Energy(ΔHf)	-0.08043	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.

Ir4W

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control