COLD-ROLLED STEEL SHEET HAVING EXCELLENT HIGH-TEMPERATURE PROPERTIES AND ROOM-TEMPERATURE WORKABILITY, AND METHOD FOR MANUFACTURING SAME

The present invention relates to a cold-rolled steel sheet having excellent high-temperature properties and room-temperature workability, and a method for manufacturing same. Provided are a cold-rolled steel sheet having excellent high-temperature properties and room-temperature workability, and a method for manufacturing same. One embodiment of the present invention comprises, in wt%, 0.0005-0.003% carbon (C), 0.20-0.50% manganese (Mn), 0.01-0.10% aluminum (Al), 0.003-0.020% phosphorus (P), 0.0005-0.004% nitrogen (N), 0.015% or lower sulfur (S), 0.005-0.040% niobium (Nb), 0.10-0.50% chrome (Cr), 0.02-0.07% tungsten (W), and the remainder in Fe and other unavoidable impurities, wherein C, Nb and W satisfy interaction formula 1, the micro-structure comprises, in surface%, 95% or higher polygonal ferrite and 5% or lower acicular ferrite, and the cold-rolled steel sheet comprises (Nb,W)C-type precipitate having an average size of 0.005-0.10µm. [interaction formula 1]0.00025 # (2×Nb/93)×(W/184)/(C/12) # 0.0015 (C, Nb and W in wt%)