CuMn

metal

· CuMn

CuMn is a copper-manganese alloy combining copper's excellent electrical and thermal conductivity with manganese's strengthening and corrosion-resistance contributions. It is widely used in electrical contacts, resistance welding electrodes, and bus bars where high conductivity must be maintained alongside moderate strength and wear resistance. This alloy is favored over pure copper in applications requiring enhanced hardness and fatigue resistance without sacrificing electrical performance, making it particularly valuable in high-current switching systems and industrial electrical distribution.

electrical contacts and switcheswelding electrodesbus bars and conductorshigh-current distributionresistance weldingwear-resistant electrical components

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.03830	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.

CuMn

Other Properties

Regulatory Screening

Environmental

Export Control