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|1. (WO2018079131) WELDED MEMBER AND METHOD FOR MANUFACTURING SAME|
|Applicants:||NISSHIN STEEL CO., LTD.
|Title:||WELDED MEMBER AND METHOD FOR MANUFACTURING SAME|
Provided are a welded member and a method for manufacturing the same, the welded member having excellent corrosion resistance with a hot-dip-galvanized steel plate as the base metal thereof, and excellent shear strength of a weld bead. A welded member (10) in which a bottom plate (3) and a top plate (1) which are hot-dip-galvanized steel plates are superposed on each other and arc-welded, a weld bead (2) being formed so that the cross-sectional width W thereof satisfies formula (1) and the blowhole occupancy ratio Br thereof indicated by formula (2) is 50% or less. (1): 2T ≤ W ≤ 6T. (2): Br = (Σdi/L) × 100. (In the formulas, T is the thickness of the hot-dip-galvanized steel plates, di is the length of the ith blowhole observed by X-ray inspection, and L is the length of the weld bead.)