Cold Rolled Steel Sheet With Excellent Weldability And Method For Manufacturing Same

Abstract: The present invention relates to a cold-rolled steel sheet and a method for manufacturing same. A cold-rolled steel sheet according to one embodiment comprises, in weight%, 0.01-0.05 % of carbon (C), 0.6-1.2 % of manganese (Mn), 0.05 % or less (excluding 0 %) of silicon (Si), 0.0005-0.01 % of phosphorus (P), 0.008 % or less (excluding 0 %) of sulfur (S), 0.0005-0.015 % of aluminum (Al), 0.0005-0.003 % of nitrogen (N), 0.1-0.4 % of tungsten (W), 1.0-2.0 % of chromium (Cr), 0.05-0.15 % of zirconium (Zr), and the remainder of Fe and inevitable impurities, wherein the yield strength of a welded member may be 500 MPa or more.

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