Hot rolled steel sheet high in young's modulus in width direction and its manufacture

PURPOSE: To provide a hot rolled steel sheet high in a Young's modulus in the width direction and to provide its manufacturing method. CONSTITUTION: (1) This hot rolled steel sheet high in a Young's modulus contains, by weight, ≤0.8% C, ≤3% Si, 0.1 to 3.0% Mn and 0.01 to 3% sol.Al, and the balance Fe with inevitable impurities, and in which the reflection strength on the {311} plane parallel to the sheet face shows ≥ five times as much by random ratio. (2) This is a method for manufacturing the steel sheet high in a Young's modulus (1) characterized by heating steel stock having the said chemical compsn. in the range of 920 to 1250°C, thereafter executing hot rolling in such a manner that the total draft in the α+γ two phase region is regulated to ≥50% and the finishing temp. of the hot rolling is regulated to the Ar 1 to (the Ar 1 -70°C) and coiling it at the Ar 1 to (the Ar 1 -250°C) or executing annealing at the Ar 1 to (the Ar 1 -250°C) after the coiling at the Ar 1 point or below. This steel in the (1) and steel stock in the (2) may be incorporated with ≤2.5% Ni and/or one or more kinds among ≤0.1% Nb, ≤0.2% V and ≤0.1% Ti. COPYRIGHT: (C)1993,JPO&Japio