Posco Co., Ltd

Min-Gwan Seong

Jai-Ik Kim

Jin-A Kim

The purpose of one aspect of the present disclosure is to provide: a cold rolled steel sheet for a flux-cored wire, having excellent low temperature toughness, welding workability and processability; and a manufacturing method thereof. One embodiment of the present disclosure provides: a cold rolled steel sheet for a flux-cored wire, comprising, by wt %, 0.005-0.10% of C, 0.05-0.25% of Mn, 0.05% or less of Si (excluding 0%), 0.0005-0.01% of P, 0.008% or less of S (excluding 0%), 0.005-0.06% of Al, 0.0005-0.003% of N, 0.8-1.7% of Ni, 0.1-0.5% of Cr, and a balance of Fe and inevitable impurities, and having 0.10-0.75 of WN defined by Relationship 1 below; and a manufacturing method therefor.WN=(31&#xd7;C+0.5&#xd7;Mn+20&#xd7;Al)&#xd7;(Ni)&#xd7;(0.6&#xd7;Cr).&#x2003;&#x2003;Relationship 1

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Pohang-si, South Korea

Min-Gwan Seong