FERRITIC STAINLESS STEEL SHEET EXCELLENT IN PRESS FORMABILITY AND WORKABILITY AND METHOD FOR PRODUCTION THEREOF

摘要

A ferritic stainless steel sheet excellent in press formability and workability, characterized in that it contains C, N, Cr, Si, Mn, P, S, Al, Ti and V in respective suitable amounts and Fe and inevitable impurities account for the balanced amount, it has a solid lubricating film on one or both surfaces thereof, Z represented by Z = Z1/Z2 has a value of less than 0.5, it has a tensile strength of 450 MPa or less, and it exhibits an average r value of 1.7 or more, wherein Z1 represents the friction coefficient of the surface of the ferritic stainless steel sheet having the solid lubricating film thereon, Z2 represents the friction coefficient of the surface of a specific standard material having no coating or no lubricating agent thereon; and an alternative steel sheet having suitable contents of Sol-Ti and Insol-V, without or with limitation with respect to a tensile strength and a r value, wherein Sol-Ti represents Ti being present in a solid solution state in the steel and Insol-V represents V being present in a precipitated state in the steel.