Shielded metal arc welding rod and method of manufacturing welded joint

A shielded metal arc welding rod comprising:

• a core wire made of steel;
• and
• a flux coating the core wire,
• wherein a chemical component of the core wire consists of, by mass % with respect to a total mass of the core wire:
• C:
• from 0% to 0.650%,
• Si:
• from 0.03% to 0.50%,
• Mn:
• from 2.1% to 30.0%,
• P:
• from 0% to 0.050%,
• S:
• from 0% to 0.050%,
• Cu:
• from 0% to 5.0%,
• Ni:
• from 1.0% to 30.0%,
• Cr:
• from 0% to 10.0%,
• Mo:
• from 0% to 10.0%,
• Nb:
• from 0% to 1.00%,
• V:
• from 0% to 1.00%,
• Co:
• from 0% to 1.00%,
• Pb:
• from 0% to 1.00%,
• Sn:
• from 0% to 1.00%,
• Al:
• from 0% to 0.10%,
• Ti:
• from 0% to 0.10%,
• B:
• from 0% to 0.1000%,
• N:
• from 0% to 0.5000%,
• O:
• from 0% to 0% to 0.0050%, and
• balance:
• Fe and impurities,
• wherein:
• a total (Mn+Ni) of a content of the Mn and a content of the Ni is 5.0% or more,
• a total (Mn+Ni+Cr) of the content of the Mn, the content of the Ni, and a content of the Cr is 15.0% or more, and
• a fraction of fcc in the core wire as determined by a magnetic induction method is 70% or more.