Cu0.4Ni0.35Sn0.25

metal

· Cu0.4Ni0.35Sn0.25

Cu0.4Ni0.35Sn0.25 is a ternary copper-nickel-tin alloy combining the corrosion resistance of cupronickel with tin's strengthening and wear-resistance contributions. This composition sits within the copper-nickel-tin family used in marine hardware, electrical contacts, and bearing applications where corrosion resistance, moderate strength, and fatigue durability are balanced requirements. The addition of tin to cupronickel improves hardness and reduces dezincification tendencies compared to binary brasses, making it suitable for seawater service and high-stress sliding applications.

Marine hardware and fastenersSeawater corrosion resistanceElectrical connectors and contactsBearing and wear surfacesPump impellersNaval and offshore equipment

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.1679	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.

Cu0.4Ni0.35Sn0.25

Other Properties

Regulatory Screening

Environmental

Export Control