Invention Grant
- Patent Title: Ferritic stainless steel sheet
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Application No.: US14384121Application Date: 2013-03-08
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Publication No.: US09885099B2Publication Date: 2018-02-06
- Inventor: Norihiro Kanno , Junichi Hamada , Yoshiharu Inoue
- Applicant: NIPPON STEEL & SUMIKIN STAINLESS STEEL CORPORATION
- Applicant Address: JP Tokyo
- Assignee: NIPPON STEEL & SUMIKIN STAINLESS STEEL CORPORATION
- Current Assignee: NIPPON STEEL & SUMIKIN STAINLESS STEEL CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2012-053262 20120309; JP2013-023416 20130208
- International Application: PCT/JP2013/056531 WO 20130308
- International Announcement: WO2013/133429 WO 20130912
- Main IPC: C22C38/04
- IPC: C22C38/04 ; C22C38/00 ; C22C38/32 ; C22C38/54 ; C22C38/02 ; C22C38/20 ; C22C38/22 ; C22C38/26 ; C21D6/00 ; C21D6/02 ; C21D8/04 ; C22C38/06 ; C22C38/24 ; C22C38/28 ; C22C38/30 ; C22C38/42 ; C22C38/44 ; C22C38/48 ; C21D9/46

Abstract:
To provide a ferritic stainless steel sheet which has high scale spalling even at a high temperature around 1000° C. Provided is a ferritic stainless steel sheet having excellent Mn-containing oxide film-forming ability and scale spalling ability, containing, in terms of mass %: C: 0.001 to 0.020%, N: 0.001 to 0.020%, Si: 0.10 to 0.40%, Mn: 0.20 to 1.00%, Cr: 16.0 to 20.0%, Nb: 0.30 to 0.80%, Mo: 1.80 to 2.40%, W: 0.05 to 1.40%, Cu: 1.00 to 2.50%, and B: 0.0003 to 0.0030%, in which the above-mentioned components are contained satisfying the formula (1) below, and the balance is composed of Fe and inevitable impurities. At least one of N, Al, V, Mg, Sn, Co, Zr, Hf, and Ta may be added in a predetermined content range. 3≦(5×Mo)/(3×Mn)≦20 (1)
Public/Granted literature
- US20150044085A1 FERRITIC STAINLESS STEEL SHEET Public/Granted day:2015-02-12
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