Invention Grant
- Patent Title: Ferritic stainless steel sheet and method of producing same, and al or al alloy coated stainless steel sheet
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Application No.: US17275051Application Date: 2019-08-26
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Publication No.: US11767573B2Publication Date: 2023-09-26
- Inventor: Akito Mizutani , Rinta Sato , Mitsuyuki Fujisawa
- Applicant: JFE STEEL CORPORATION
- Applicant Address: JP Tokyo
- Assignee: JFE STEEL CORPORATION
- Current Assignee: JFE STEEL CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: KENJA IP LAW PC
- Priority: JP 18171805 2018.09.13
- International Application: PCT/JP2019/033353 2019.08.26
- International Announcement: WO2020/054384A 2020.03.19
- Date entered country: 2021-03-10
- Main IPC: C21D9/46
- IPC: C21D9/46 ; C21D6/00 ; C22C38/00 ; C22C38/02 ; C22C38/04 ; C22C38/06 ; C21D1/02 ; C23C2/12

Abstract:
A ferritic stainless steel sheet comprises a chemical composition containing, in mass %, C: 0.030% or less, Si: 3.0% or less, Mn: 1.0% or less, P: 0.040% or less, S: 0.010% or less, Cr: 11.0% to 30.0%, Al: 8.0% to 20.0%, Ni: 0.05% to 0.50%, N: 0.020% or less, and at least one selected from the group consisting of Zr: 0.01% to 0.20% and Hf: 0.01% to 0.20%, with a balance consisting of Fe and inevitable impurities.
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