Monel R405 Wires Monel R405 Wires are the smart choice for precise tasks. They’ve got a tiny amount of sulfur, making them easier to work into detailed parts. These are the go-to wires when accuracy is key, and you still need all the anti-rust and toughness of Monel 400. Technical Specification TableFeatureInfoMaterialMonel R405Wire Diameter RangeCustomizableMachinabilitySuperior for detailed workApplicationsElectronic components, fastenersFeaturesGreat corrosion resistance with enhanced machinability