High-strength cold-rolled steel sheet having excellent bendability

A high strength cold-rolled steel sheet, having a component composition comprising, by mass %:

• C:
• 0.15 to 0.30%;
• Si:
• 1.0 to 3.0%;
• Mn:
• 0.1 to 5.0%;
• P:
• more than 0% and 0.1% or less;
• S:
• more than 0% and 0.010% or less;
• N:
• more than 0% and 0.01% or less;
• Al:
• 0.001 to 0.10%;
• and
• iron,
• wherein
• the component composition of the high strength cold-rolled steel sheet is free from V,
• the high strength cold-rolled steel sheet contains, in terms of area ratio, 95% or more of martensite, and 5% or less of a total of residual austenite and ferrite,
• an average size of a carbide is 60 nm or less in terms of an equivalent circle diameter, and a number density of the carbide having an equivalent circle diameter of 25 nm or more is 5.0×105 pieces or less per mm2, and
• the high strength cold-rolled steel sheet has a yield strength of 1,180 MPa or more and a tensile strength of 1,470 MPa or more.