ENI 425

AWS/ASME SFA - 5.11	ENiCrMo-3
EN ISO 14172	E Ni 6625 (NiCr22Mo9Nb)

ENI 425 is a Ni-Cr-Mo alloyed covered electrode that deposits weld metal with a composition of Ni-22Cr-9Mo-3.5Nb. It is specifically designed for welding highly corrosion-resistant Ni-Cr-Mo alloys such as Alloy 625, 825, and similar materials.This electrode demonstrates excellent toughness at cryogenic temperatures as low as -196°C, making it suitable for welding cryogenic nickel alloys, such as X1NiCrMoCuN25-20-7.The weld metal is resistant to oxidation up to 1200°C in sulfur-free atmospheres and can be used at service temperatures up to 500°C in sulfur-containing environments. It offers high resistance to stress corrosion cracking, pitting, and crevice corrosion in environments containing phosphoric acid, organic acids, seawater, and highly polluted conditions.The weld metal is insensitive to cracking and exhibits excellent resistance to thermal shocks. ENI 425 is used for joining dissimilar nickel alloys, welding dissimilar stainless steels, joining low-alloy steels to stainless steels or nickel alloys, and for buffering and cladding applications. It is also ideal for repair welding of these materials.