CuNiMnSn

metal

· CuNiMnSn

CuNiMnSn is a quaternary copper-based alloy combining nickel, manganese, and tin as primary alloying elements, typically developed for applications requiring a balance of corrosion resistance, strength, and electrical or thermal conductivity. This alloy family is used primarily in marine hardware, electrical connectors, and corrosion-resistant fasteners where copper's conductivity and workability must be combined with enhanced durability in aggressive environments. Its manganese and tin additions provide solid-solution strengthening and oxidation resistance, making it an alternative to pure copper or simple brasses in applications where standard Cu-Zn alloys prove insufficient.

marine hardware and fastenerselectrical connectors and terminalscorrosion-resistant springsnaval and offshore equipmenthigh-conductivity corrosion barriers

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.2633	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.

CuNiMnSn

Other Properties

Regulatory Screening

Environmental

Export Control