abstract |
The present invention pertains to a high-strength cold-rolled steel sheet having a prescribed chemical composition, wherein: the metallic structure of the steel sheet includes, by area ratio, 10-50% of ferrite and a granular bainite in total, 10-50% of one or both of upper bainite and lower bainite in total, more than 0% but not more than 30% of a tempered martensite, at least 5% of residual austenite, and 0-10% of one or more of perlite, cementite, and martensite in total; the area ratio of ferrite is not more than 25% with respect to the total area ratio of ferrite and the granular bainite; and the steel sheet has a tensile strength of at least 980 MPa. |