Basic electrode for joining and surfacing of nickel-copper alloys and of nickel-copper-clad steels.
It is also used for joining different materials, such as steel to copper and copper alloys, steel to nickel-copper alloys. Excellent corrosion resistance to chloride induced stress corrosion cracking and a wide range of marine and chemical requirements. These materials are employed in high grade apparatus construction, primarily for the chemical and petrochemical industries.
A special application field is the fabrication of seawater evaporation plants and marine equipment.
It can be used for welding alloy 400 and similar parent materials to itself and to others in the NiCu alloy system, such as pure nickel and cupro-nickel.For dissimilar joints between alloy 400 and other alloys or steel, sensitivity to dilution by Fe (20-30%) or Cr (3-6%) can lead to low ductility(or bend test fissuring) in weld metal close to the fusion boundry.
If moist re-dry at 200°C for 2 hours