公开(公告)号：EP3851550A1

公开(公告)日：2021-07-21

申请号：EP19859555.5

申请日：2019-08-26

申请人： JFE Steel Corporation

发明人： MIZUTANI Akito ,  SATO Rinta ,  FUJISAWA Mitsuyuki

IPC分类号： C22C38/00 ,  C21D9/46 ,  C22C38/50 ,  C22C38/54 ,  C23C2/12

摘要： 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.

公开(公告)号：EP3988680A1

公开(公告)日：2022-04-27

申请号：EP20826596.7

申请日：2020-04-24

申请人： JFE Steel Corporation

发明人： MIZUTANI Akito ,  FUJISAWA Mitsuyuki

IPC分类号： C22C38/00 ,  C21D9/46 ,  C22C38/44 ,  C22C38/54 ,  C23C2/12 ,  C23C2/28 ,  C23C2/40 ,  C22C21/00 ,  C22C21/02

摘要： Provided is an Al or Al alloy-coated stainless steel sheet having a coating substrate and a hot-dip Al or Al alloy coated layer provided on a surface of the coating substrate, the coating substrate having a predetermined chemical composition, the Mo content and W content of the chemical composition of the coating substrate, the thickness of the coating substrate, and the thickness of the hot-dip Al or Al alloy coated layer satisfying predetermined relations.

公开(公告)号：EP3527683A1

公开(公告)日：2019-08-21

申请号：EP17861347.7

申请日：2017-10-16

申请人： JFE Steel Corporation

发明人： MIZUTANI Akito ,  FUJISAWA Mitsuyuki

IPC分类号： C22C38/00 ,  C22C38/50 ,  C22C38/54 ,  C21D9/46

摘要： [Object] Provided is an Fe-Cr-Al-type stainless steel foil that is used in an environment at an exhaust gas temperature of about 900°C and that has improved manufacturability by achieving good toughness without deteriorating high-temperature oxidation resistance or shape stability during high-temperature use.
[Solution] A stainless steel foil contains, in mass%, C: 0.015% or less, Si: 0.50% or less, Mn: 0.50% or less, P: 0.040% or less, S: 0.010% or less, Cr: 10.0% or more and less than 16.0%, Al: 2.5 to 4.5%, N: 0.015% or less, Ni: 0.05 to 0.50%, Cu: 0.01 to 0.10%, Mo: 0.01 to 0.15%, and further contains at least one of Ti: 0.01 to 0.30%, Zr: 0.01 to 0.20%, Hf: 0.01 to 0.20%, and REM: 0.01 to 0.20% so as to satisfy Ti + Zr + Hf + 2REM ≥ 0.06 and 0.30 ≥ Ti + Zr + Hf.

公开(公告)号：EP4450659A1

公开(公告)日：2024-10-23

申请号：EP22927314.9

申请日：2022-12-01

申请人： JFE Steel Corporation

发明人： MIZUTANI Akito ,  TAKASHITA Takuya ,  NAKAMURA Tetsuyuki ,  GAO Fagang ,  HORIUCHI Jun

IPC分类号： C22C33/02 ,  C22C38/00 ,  C22C38/58 ,  C22C38/60 ,  B33Y80/00 ,  B33Y70/00 ,  B22F10/28 ,  B22F1/00

摘要： There is provided a stainless steel powder which can manufacture a stainless steel member having excellent high-temperature proof stress and excellent oxidation resistance.
The stainless steel powder has a chemical composition including, in % by mass: C: 0.20% or less; Si: 2.0% or less; Mn: 2.0% or less; P: 0.040% or less; S: 0.010% or less; Cr: 18.0 to 35.0%; Ni: 1.0% or less; Cu: 0.50 to 4.0%; Nb: 0.7 to 3.0%; Mo: 6.0% or less; W: 6.0% or less; N: 0.030% or less; and O: 0.10% or less, the balance being Fe and incidental impurities, and the composition satisfying the following inequality (1): Mo + W ≥ 2.0 where Mo and W represent the contents (% by mass) of Mo and W, respectively.

公开(公告)号：EP3467131A1

公开(公告)日：2019-04-10

申请号：EP17806231.1

申请日：2017-04-21

申请人： JFE Steel Corporation

发明人： MIZUTANI Akito ,  FUJISAWA Mitsuyuki

IPC分类号： C22C38/00 ,  C21D9/46 ,  C22C38/50 ,  C23C14/14

摘要： Disclosed is a ferritic stainless steel sheet including: a chemical composition containing, by mass%, C: 0.025 % or less, Si: 0.01 % to 2.0 %, Mn: 0.01 % to 1.0 %, P: 0.050 % or less, S: 0.010 % or less, Cr: 10.5 % to 20.0 %, Al: 0.01 % to 0.50 %, Ni: 0.01 % to 0.60 %, Ti: 0.10 % to 0.50 %, and N: 0.025 % or less, with the balance being Fe and inevitable impurities; and a coating layer including at least one coating layer selected from the group consisting of an Al coating layer, an Fe coating layer, and a Si coating layer on one or both sides thereof, in which the coating layer has a total thickness of 30 nm to 150 nm per side.

公开(公告)号：EP4265761A1

公开(公告)日：2023-10-25

申请号：EP21906566.1

申请日：2021-12-13

申请人： JFE Steel Corporation

发明人： YANO Takayoshi ,  MIZUTANI Akito ,  IKEDA Kazuhiko ,  FUJII Tomoko ,  MATSUNAGA Hiroshi

IPC分类号： C22C38/00 ,  C22C38/58 ,  H01M8/021 ,  H01M8/10

摘要： It is provided a stainless steel sheet for fuel cell separators with low contact resistance, which can be produced very advantageously in terms of safety as well as mass production. A parameter Sa specified in ISO 25178 is set to 0.15 µm or more and 0.50 µm or less, and a parameter Ssk specified in ISO 25178 is set to more than 0.

公开(公告)号：EP3929322A1

公开(公告)日：2021-12-29

申请号：EP20759064.7

申请日：2020-01-08

申请人： JFE Steel Corporation

发明人： MIZUTANI Akito ,  FUJISAWA Mitsuyuki

IPC分类号： C22C38/00 ,  C21D9/46 ,  C22C38/50 ,  C22C38/54

摘要： A ferritic stainless steel sheet comprises a chemical composition containing, in mass%, C: 0.030 % or less, Si: 1.0 % 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 %, Mo: 0.01 % to 6.0 %, 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.