STEEL SHEET FOR CAN AND METHOD FOR MANUFACTURING THE SAME

摘要

A steel sheet exhibiting good drawability and excellent buckling strength of a can body portion against an external pressure, and a method for manufacturing the same. The steel sheet includes C: 0.0030% or more and 0.0100% or less, Si: 0.05% or less, Mn: 0.10% or more and 1.0% or less, P: 0.030% or less, S: 0.020% or less, Al: 0.010% or more and 0.100% or less, N: 0.0050% or less, Nb: 0.010% or more and 0.050% or less, and incidental impurities. Contents of C and Nb satisfy 0.10 ([Nb]/92.9)/([C]/12)<0.60, the HR30T hardness of the steel sheet is 56 or more, and the average Young's modulus of the steel sheet is 210 GPa or more.

主权项

1. A steel sheet for a can, the steel sheet comprising:
C: 0.0030% or more and 0.0100% or less, by mass %; Si: 0.05% or less, by mass %: Mn: 0.10% or more and 1.0% or less, by mass %; P: 0.030% or less, by mass %; S: 0.020% or less, by mass % Al: 0.010% or more and 0.100% or less, by mass %; N: 0.0050% or less, by mass %; Nb: 0.010% or more and 0.050% or less, by mass %; and Fe and incidental impurities, wherein:
the contents of C and Nb satisfy Formula (1):
10≦([Nb]/92.9)/([C]/12)<0.60   Formula (1), [Nb] and [C] represent the contents (mass %) of Nb and C, respectively,
the steel sheet has a HR30T hardness of 56 or more, andthe steel sheet has an average Young's modulus of 210 GPa or more.