Welded Joint

Abstract: The present invention addresses the problem of providing a welded joint inhibited from having undergone LME cracking during the production. This welded joint is characterized in that: the welded joint is configured of plated steel plates having given chemical components; in the non-heat-affected portion of each plated steel plate, the depths at which the concentration of C as determined by GDS is 0.05% or less are 5 µm or greater from the interface as a starting point between the plating layer and the base steel plate along the base depth direction; in a cross-section of the non-heat-affected portion of the steel plate, the interface between the plating layer and the base steel plate has a roughness of 3.0 µm or less in terms of Ra; and in the range of 0-100 µm from each edge of the bead of the weld in the direction opposite from the weld, the concentration of C in the base steel plate at a depth of 5 µm from the interface as a starting point between the plating layer and the base steel plate is 0.05% or less.

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