| 摘要 |
PROBLEM TO BE SOLVED: To provide a steel sheet for can lid with high strength and high processability applicable to a can lid and especially suitable as a material for EOE.SOLUTION: A steel sheet for can lid having tensile strength of 500 MPa or more and breaking elongation of 10% or more is prepared by using a steel containing, by mass%, C: 0.070% or more and less than 0.080%, Si: 0.003% or more and 0.100% or less, Mn: 0.51% or more and 0.80% or less, P: 0.001% or more and 0.100% or less, S: 0.001% or more and 0.020% or less, Al: 0.005% or more and 0.100% or less, N: over 0.010% and 0.020% or less, and the balance Fe with inevitable impurities and adjusting an average crystal particle diameter in a rolling direction cross section to 5.0 μm or more, an elongation rate of a crystal particle to 2.0 or less and a difference between a Vickers hardness of a surface side and the Vickers hardness of an inner side in a specific range. |
