Cu0.55Ni0.20Sn0.25

metal

· Cu0.55Ni0.20Sn0.25

Cu0.55Ni0.20Sn0.25 is a copper-nickel-tin ternary alloy that combines the corrosion resistance of cupronickel with tin strengthening, placing it in the family of specialized bronze and cupronickel alloys. This composition is primarily used in marine hardware, electrical contacts, and decorative applications where a balance of corrosion resistance, electrical conductivity, and mechanical strength is required. The nickel and tin additions improve wear resistance and tarnish resistance compared to pure copper or binary copper-nickel alloys, making it suitable for environments with salt water exposure and sliding contact applications.

marine hardware and fittingselectrical contacts and switchescorrosion-resistant fastenersdecorative architectural elementsbearing and bushing applicationsseawater-resistant components

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.1762	eV/atom	—

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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.

Cu0.55Ni0.20Sn0.25

Other Properties

Regulatory Screening

Environmental

Export Control