Cu20Ni39Sn41

metal
· Cu20Ni39Sn41

Cu20Ni39Sn41 is a copper-nickel-tin ternary alloy that belongs to the bronze/cupronickel family, combining copper as the base element with substantial nickel and tin additions to enhance strength, corrosion resistance, and workability. This composition is typically used in marine hardware, electrical connectors, and precision-cast components where a balance of corrosion resistance, moderate strength, and good machinability is required. The nickel content provides enhanced seawater resistance compared to binary bronzes, while the tin addition improves wear resistance and castability, making this alloy a practical choice for applications where cost-effectiveness and reliable performance in corrosive environments matter more than maximum strength.

Marine fasteners and hardwareSeawater valve bodiesElectrical connectors and contactsPrecision casting componentsPump impellersBearing bushings

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Formation Energy(ΔHf)
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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.