Nippon Steel Stainless Steel Corporation

Nippon Steel & Sumikin Stainless Steel Corporation

Nozomu Fukuda

Jun Araki

Junichi Hamada

Toshio Tanoue

Kou Nishimura

A ferritic stainless steel sheet and a steel pipe as a material suitable for a heat-resistant component that is required to have especially excellent formability are provided. The ferritic stainless steel sheet contains 10 to 20 mass % of Cr and a predetermined amount of C, Si, Mn, P, S, Al and one or both of Ti and Nb, a {111}-orientation intensity being 5 or more and {411}-orientation intensity being less than 3 at a portion in the vicinity of a sheet-thickness central portion of the ferritic stainless steel sheet. Further, with similar composition and by setting {111}&#x3c;110&#x3e;-orientation intensity at 4.0 or more and {311}&#x3c;136&#x3e;-orientation intensity at less than 3.0, a relationship r&#x2265;&#x2212;1.0t+3.0 (t(mm): sheet thickness, r: average r-value) is satisfied, thereby providing a ferritic stainless steel sheet and a steel pipe with excellent formability.

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Tokyo, Japan

Nozomu Fukuda