FERRITIC STAINLESS STEEL SHEET, METHOD FOR PRODUCING SAME AND FERRITIC STAINLESS STEEL MEMBER

• Main Authors: NISHIMURA, Kou, INOUE, Yoshiharu
• Format: Patent
• Language: English; French; German
• Published: 17.08.2022
• Subjects: ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

A ferritic stainless steel sheet is provided that has a predetermined chemical composition, wherein: a grain size number is 6 or more; the ferritic stainless steel sheet satisfies the formulas [A+B ≥ 9.0] and [X+Y ≥ 9.0] with respect to crystal orientation intensities of a ferrite phase obtained by X-ray diffraction; and the sheet thickness is 1.0 mm or more. Where, in the aforementioned formulas(ii) and (iii), A represents a {111} crystal orientation intensity at a center portion of sheet thickness, B represents a {111} crystal orientation intensity at a 1/8 portion of the sheet thickness, X represents a {322} crystal orientation intensity at a center portion of sheet thickness, and Y represents a {322} crystal orientation intensity at a 1/8 portion of the sheet thickness.