PURPOSE: To obtain a hot rolled steel sheet excellent in deep drawability without requiring lubricating and annealing equipments by subjecting the slab of a steel having a specified compsn. In which C, N and Mn are prescribed and mixed with Ti and Nb to the precipitation treatment of carbon nitrides and thereafter executing primary and secondary rolling under specified conditions to generate recrystallization.

CONSTITUTION: A steel contg., by weight, ≤0.01% C, ≤0.4% Mn and ≤0.01% N and in which the content of C and N and that of Ti and/or Nb lines in the relationship of (C/12+N/14)≤1.2 (Ti/48+Nb/93)≤0.1 is used. The slab obtd. by the above steel is held at 1000 to 1100°C for ≥30min before its temp. reaches less than the Ar3 transformation point and is thereafter subjected to primary rolling at ≥920°C rolling finishing temp. as well as ≥50% total draft at 1000 to 920°C. Successively, temp. raising rolling is started at 650 to 830°C. and ≥40% draft per pass and is finished at 750$0C to less than the Ar3 transformation point, and the rolled stock is coiled and is recrystallized.