Invention Grant
- Patent Title: Ferrite-based stainless steel sheet having low specific gravity and production method therefor
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Application No.: US16498220Application Date: 2018-03-27
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Publication No.: US11242578B2Publication Date: 2022-02-08
- Inventor: Junichi Hamada , Masatoshi Abe , Atsutaka Hayashi
- Applicant: NIPPON STEEL Stainless Steel Corporation
- Applicant Address: JP Tokyo
- Assignee: NIPPON STEEL Stainless Steel Corporation
- Current Assignee: NIPPON STEEL Stainless Steel Corporation
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JPJP2017-069142 20170330
- International Application: PCT/JP2018/012311 WO 20180327
- International Announcement: WO2018/181257 WO 20181004
- Main IPC: C22C38/54
- IPC: C22C38/54 ; C22C38/48 ; C22C38/06 ; C22C38/04 ; C22C38/42 ; C22C38/00 ; C22C38/52 ; C22C38/46 ; C22C38/44 ; C22C38/50 ; C22C38/02 ; C21D9/46 ; C21D8/02 ; C21D6/00 ; C23G1/08 ; C22C38/20 ; C22C38/22 ; C22C38/24 ; C22C38/26 ; C22C38/28 ; C22C38/30 ; C22C38/32
Abstract:
This ferritic stainless steel sheet contains, by mass %: C: 0.001% to 0.020%; Si: 0.01% to 4.00%; Mn: 0.01% to 3.00%; P: 0.010% to 0.040%; S: 0.0001% to 0.0100%; Cr: 10.0% to 15.0%; N: 0.001% to 0.020%; Al: 0.50% to 10.0%; and either one or both of Ti: 0.05% to 0.40% and Nb: 0.05% to 0.40%, with the balance being Fe and unavoidable impurities, in which Cr/(Si+Al) is 10.0 or less, and a specific gravity is 7.6 g/cm3 or less.
Public/Granted literature
- US20200024682A1 FERRITE-BASED STAINLESS STEEL SHEET HAVING LOW SPECIFIC GRAVITY AND PRODUCTION METHOD THEREFOR Public/Granted day:2020-01-23
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