Nihonweld N-Cu description: N-Cu is the covered arc welding electrode which is used with DCRP (electrode positive) for pure copper. It is designed for use without preheating and shows deep penetration. Therefore, plate thickness up to 16mm can be welded without edge preparation, then you can obtain the maximum efficiency. However, preheating at 100~200C still offer a high quality welding and good penetration at arc starting. N-Cu produces high purity copper weld deposits. Corrosion resistance and electrical conductivity is excellent. Perfect color match to copper. Welding of pure copper suitable for repairing welding of the parts which require N-Cu used to surface, build-up, and fabricate electrolytic tough pitch and oxygen-free copper. Excellent for applications that require high corrosion resistance. Commonly used to overlay steel or to join heavier sections of copper to steel.