CuSn7

metal

· JVASP-122558· CuSn7

CuSn7 is a copper-tin bronze alloy containing approximately 7% tin, a traditional wrought or cast copper-based alloy known for good corrosion resistance and moderate strength. Widely used in marine hardware, pump components, and architectural applications where its combination of workability, durability in seawater environments, and attractive golden appearance make it a practical choice over higher-strength but less corrosion-resistant alternatives.

marine fasteners and hardwarepump and valve bodiesarchitectural trim and fittingsbearing and bushing alloysseawater piping systemsdecorative bronze castings

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	5.544	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)	0.1270	eV/atom	—
Formation Energy(ΔHf)	0.1214	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.

CuSn7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control