Patent ID: 8057913
Filing Date: 2011-11-15
Classification: C21D,C22C,C23C,Y10T

Abstract:
1. A steel sheet having high Young's modulus, comprising, in terms of mass %, C: 0.0005 to 0.30%, Si: 2.5% or less, Mn: 3.01 to 4.34%, P: 0.15% or less, S: 0.015% or less, Mo: 0.15 to 1.5%, B: 0.0006 to 0.01%, and Al: 0.15% or less, with the remainder being Fe and unavoidable impurities, wherein one or both of {110}<223> pole density and {110}<111> pole density in the ⅛ sheet thickness layer is 10 or more, and a Young's modulus in a rolling direction is more than 230 GPa.