| 摘要 |
Cold rolled steel sheets having improved bake hardenability is provided. Specifically, the present invention relates to a cold rolled steel sheet, with improved bake hardenability, comprising an ultra low carbon steel containing titanium and/or niobium, wherein the relationship between the contents of carbon and molybdenum in solid solution being regulated in a specified range, and a cold rolled steel sheet, with improved bake hardenability, which further contains a specified amount of boron in addition to the above constituents.
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