Patent ID: 7767314

Claim:
A weld joint comprising: a first zinc-based alloy coated steel sheet; a second zinc-based alloy coated steel sheet; and a weld portion joining said first zinc-based alloy coated steel sheet and said second zinc-based alloy coated steel sheet, wherein said weld portion contains in mass percent (%): C: 0.01-0.1; Si: 0.1-1; Mn: 0.5-2.5; Ni: 5-11; and Cr: 17-25, and the balance being iron and residual impurities, wherein the following expressions (1), (2) and (3) are met; −0.81×Cr equivalent+23.2≦Ni equivalent≦0.95×Cr equivalent−8.1 (1) Ni equivalent=Ni+30×C+0.5×Mn+30×N (2) Cr equivalent=Cr+Mo+1.5×Si (3) wherein each of Ni, C, Mn, N, Cr, Mo and Si represents content (mass %) of each component element contained in the stainless steel-based weld metal.