XUPER 660 NH Welding Electrodes by Metals and Welding Specialities are specially developed for applications that require excellent strength in high-temperature and corrosive environments. These electrodes are suitable for welding alloys matching UNS N06600 and meet AWS A5.11 ENiCrFe-3 standards (equivalent to ASTM ERNiCr-3). https://www.mwspecialities.com/xuper-660nh-coated-welding-electrodes-manufacturer-exporter-supplier-stockist.html