The chemical composition of UNS N04405（Monel R-405）
Tech Center 2025-08-04 83
Monel nickel-copper alloy R-405(UNS N04405) is the free-working grade of alloy 400. Its relatively high sulfur content enhances processability. It basically has the same corrosion resistance and physical properties as alloy 400, but the range of mechanical properties is slightly different. Alloy R-405 is mainly used in automatic screw machines and is not recommended for other applications.
The density of this alloy is ρ=8.80g/cm³.
