Patent ID: 8294065

Claim:
Stainless steel wire having a flux core for welding zinc-based alloy coated steel sheet comprising: an outer metal sheath made of stainless steel coating the flux core; wherein the outer metal sheath and the flux core in total comprising in mass (%) as a percentage of the total mass of the wire: C: 0.01-0.05%, Si: 0.1-1.5%, Mn: 0.5-3.0%, Ni: 7.0-10.0%, and Cr: 26.0-30.0% wherein F value defined as expression (1) below ranges from 30 to 50, F value=3×[Cr %]+4.5×[Si %]−2.8×[Ni %]−84×[C %]−1.4×[Mn %]−19.8 (1) the flux core further comprising a slag formation agent in mass (%) as a percentage of the total mass of the wire: TiO 2 : 0.6-2.6%, SiO 2 : 1.8-3.8%, ZrO 2 : 1.0-3.5%, and Al 2 O 3 : 0.1-1.0%, wherein said slag formation agent is 10% or less of the total mass of the wire, and wherein a balance of the wire is composed of Fe and residual impurities.