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1. (WO2018198835) MATERIAL FOR COLD-ROLLED STAINLESS STEEL SHEET, AND PRODUCTION METHOD THEREFOR

Pub. No.:    WO/2018/198835    International Application No.:    PCT/JP2018/015579
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Sat Apr 14 01:59:59 CEST 2018
IPC: C22C 38/00
C21D 9/46
C22C 38/40
C22C 38/60
Applicants: JFE STEEL CORPORATION
JFEスチール株式会社
Inventors: NISHIDA Shuji
西田 修司
ISHII Tomohiro
石井 知洋
YOSHINO Masataka
吉野 正崇
FUJISAWA Mitsuyuki
藤澤 光幸
Title: MATERIAL FOR COLD-ROLLED STAINLESS STEEL SHEET, AND PRODUCTION METHOD THEREFOR
Abstract:
Provided are: a material for a cold-rolled stainless steel sheet, said material being suitable for producing a cold-rolled ferritic stainless steel sheet exhibiting excellent corrosion resistance and excellent mouldability and ridging resistance; and a production method therefor. This material for a cold-rolled stainless steel sheet is provided with a component composition which includes, in mass%, 0.005-0.030% of C, 0.05-1.00% of Si, 0.05-1.00% of Mn, 0.040% or less of P, 0.030% or less of S, 0.001-0.150% of Al, 10.8-14.4% of Cr, 0.01-2.50% of Ni, and 0.005-0.060% of N, the remainder comprising Fe and unavoidable impurities. The material for the cold-rolled stainless steel sheet is provided with a structure which includes, in area ratio, 10-90% of martensite phase, the remainder comprising ferrite phase.