WELDED JOINT

摘要

Provided is a welded joint having excellent metal dusting resistance. A welded joint welded using a welding material having a chemical composition containing, by mass, 15.0-30.0% of Cr and 40.0-70.0% of Ni, wherein the welded joint is provided with a parent material, and an initial layer welding metal having a chemical composition in which the Fe content is 10-40% by mass. The chemical composition of the parent material is, by mass: 0.03-0.075% of C, 0.6-2.0% of Si, 0.05-2.5% of Mn, 0.04% or less of P, 0.015% or less of S, over 16.0% and less than 23.0% of Cr, 20.0% to less than 30.0% of Ni, 0.5-10.0% of Cu, less than 1% of Mo, 0.15% or less of Al, 0.005-0.20% of N, 0.02% or less of O, 0-0.1% of Ca, 0-0.15% of REM, 0% to less than 0.5% of V, and 0-2% of Nb, the remainder comprising Fe and impurities.