CuNi
metal· JVASP-100409· CuNi
Copper-nickel (CuNi) is a binary alloy combining copper's excellent electrical and thermal conductivity with nickel's corrosion resistance and strength, creating a material well-suited to marine and corrosive environments. It is widely used in seawater cooling systems, naval applications, and desalination plants where resistance to corrosion, biofouling, and erosion-corrosion is critical. Engineers favor CuNi over pure copper in these settings because the nickel addition dramatically improves durability in aggressive aqueous environments while maintaining good workability and moderate cost compared to more exotic corrosion-resistant alloys.
seawater cooling systemsnaval marine applicationsheat exchanger tubesdesalination plantssaltwater pipingcorrosion-resistant fasteners
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.3256 | lb/in³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.01160 | eV/atom | — | ||
Formation Energy(ΔHf) | 0.00699 | 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.