The present invention provides a flux-cored arc welded metal portion having excellent low-temperature fracture toughness at low temperatures. According to an embodiment of the present invention, the flux-cored arc welding metal part, by weight%, carbon (C): 0.01 to 0.10%, silicon (Si): 0.1 to 0.5%, manganese (Mn): 1.0 to 2.5 %, Nickel (Ni): 2.0 ~ 3.0%, Titanium (Ti): 0.01 ~ 0.1%, Boron (B): 0.001 ~ 0.01%, Oxygen (O): 0.03 ~ 0.07%, Phosphorus (P): More than 0 ~ 0.03% or less, sulfur (S): greater than 0 to 0.03% or less, and the balance contains iron (Fe) and other inevitable impurities, and 4Ni[% by weight]+3Ti[% by weight]+2.5B[% by weight] It is controlled from more than 10.0 to less than 10.5.
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