Flux-cored wire and gas-shielded arc welding method using the same

A flux-cored wire containing flux within a stainless steel or mild steel outer cover for use in stainless steel welding and gas-shielded arc welding using a shielding gas,

• the flux-cored wire comprising:
• based on the total mass of the flux-cored wire,
• C:
• 0.10% by mass or less,
• Si:
• 1.50% by mass or less,
• Mn:
• 2.00% by mass or less,
• P:
• 0.050% by mass or less,
• S:
• 0.050% by mass or less,
• Cr:
• 15.0% to 25.0% by mass,
• Ti:
• 0.16% to 1.00% by mass, and
• O:
• 0.300% by mass or less,
• the remainder being Fe and incidental impurities,
• wherein the shielding gas is pure Ar gas.