Nihonweld NC-50 description: An iron-nickel alloy Shielded Metal Arc Welding electrode for high strength joints on cast iron. Also for the fabrication and repair of a wide range of cast iron components and for the joining of cast iron to steel. It is used primarily for welding nodular graphite or shperoidal graphite (SG) cast irons and is also suitable for welding the austenitic Ni-Resist irons and alloy cast irons. NC-50 weld deposits provide good levels of strength, are very resistant to cracking and the weld metal is fully machinable. NC-50 is specially manufactured to avoid electrode overheating. NC-50 is a very easy electrode to control due to the soft smooth arc characteristics which produce even weld beads of good contour. Suitable for use with both AC (minimum OCV of 50V) and DC+.