Ni Fe Cr Alloy Welded Joint

Abstract: The present invention provides an Ni-Fe-Cr alloy welded joint which has excellent intergranular corrosion resistance. An Ni-Fe-Cr alloy welded joint according to the present disclosure comprises a pair of base materials and a welding metal that is formed between the pair of base materials; the base materials have a chemical composition that contains, in mass%, 0.005% to 0.015% of C, 0.05% to 0.50% of Si, 0.05% to 1.50% of Mn, 0.030% or less of P, 0.020% or less of S, 1.00% to 5.00% of Cu, 30.00% to 45.00% of Ni, 18.00% to 30.00% of Cr, 2.00% to 4.50% of Mo, 0.50% to 2.00% of Ti and 0.0010% to 0.0150% of N, with the balance being made up of Fe and impurities; and the Cr carbide occupancy in the welding heat-affected zones of the base materials is 0.150% or less.

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