CuSnAs

metal

· JVASP-75809· CuSnAs

CuSnAs is a copper-tin-arsenic alloy belonging to the family of copper-based metallic systems. This material combines the inherent properties of copper and tin (which form the basis of classical bronzes) with arsenic as an alloying addition, though CuSnAs is relatively uncommon in mainstream industrial practice and appears primarily in specialized or legacy applications rather than as a widely adopted engineering alloy. The arsenic addition typically enhances strength or wear resistance compared to conventional copper-tin bronzes, but its use is limited by toxicity concerns and the availability of more modern alternatives.

specialty bearing alloyshistorical bronze applicationswear-resistant bushingsresearch/limited productionarsenic-modified copper systemslegacy metallurgical compositions

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	6.817	kg/m³	—

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)	0.1226	eV/atom	—
Formation Energy(ΔHf)	0.07554	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.

CuSnAs

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control