Filler metal ALLOY 52 is used for submerged arc welding of INCONEL® alloy 690. This NiCrFe welding product was developed to meet the changing needs of the nuclear industry, the higher chromium level providing greater resistance to stress-corrosion cracking in the nuclear, pure water environment. Filler Metal 52 produces corrosion-resistant overlays on most low-alloy and stainless steels. It can also be used in applications requiring resistance to oxidizing acids. It is useful for dissimilar joints involving INCONEL® and INCOLOY® alloys, and carbon, low-alloy and stainless steels and for strip overlaying on C steel and low alloyed steel.