公开(公告)号：US12116657B2

公开(公告)日：2024-10-15

申请号：US17630914

申请日：2020-06-04

申请人： JFE STEEL CORPORATION

发明人： Akito Mizutani ,  Mitsuyuki Fujisawa

IPC分类号： C22C38/58 ,  C21D8/02 ,  C21D9/46 ,  C22C38/00 ,  C22C38/02 ,  C22C38/42 ,  C22C38/44 ,  C22C38/54

CPC分类号： C22C38/58 ,  C21D8/0205 ,  C21D8/0226 ,  C21D9/46 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/42 ,  C22C38/44 ,  C22C38/54 ,  C21D2211/001 ,  C21D2211/005

摘要： A predetermined chemical composition is contained, and a predetermined relationship of the contents of Ag, B and REM is satisfied.

公开(公告)号：US20190390310A1

公开(公告)日：2019-12-26

申请号：US16479120

申请日：2018-01-18

申请人： JFE Steel Corporation

发明人： Akito Mizutani ,  Mitsuyuki Fujisawa

IPC分类号： C22C38/42 ,  C22C38/00 ,  C22C38/02 ,  C22C38/06 ,  C22C38/44 ,  C22C38/50 ,  C22C38/54 ,  C22C38/58 ,  C21C5/00 ,  C21D9/46

摘要： Provided is a ferritic-austenitic duplex stainless steel sheet in which no blowholes are formed during welding and which has excellent strength.A chemical composition includes, in mass %, C: 0.10% or less, Si: 1.0% or less, Mn: 2.0 to 7.0%, P: 0.07% or less, S: 0.030% or less, Cr: 18.0 to 24.0%, Ni: 0.1 to 3.0%, Mo: 0.01 to 1.0%, Cu: 0.1 to 3.0%, Al: 0.003 to 0.10%, Zr: 0.01 to 0.50%, and N: 0.15 to 0.30%, with the balance being Fe and incidental impurities, the chemical composition satisfying formula (1) below and formula (2) below. N—Zr/6.5≥0.15%  (1) N—Zr/6.5≤0.23%  (2) Here, in formula (1) and formula (2), N represents a content (mass %) of the corresponding chemical element N and Zr represents a content (mass %) of the corresponding chemical element Zr.

公开(公告)号：US20180171430A1

公开(公告)日：2018-06-21

申请号：US15737932

申请日：2015-07-02

申请人： JFE STEEL CORPORATION

发明人： Masataka Yoshino ,  Akito Mizutani ,  Mitsuyuki Fujisawa ,  Chikara Kami

IPC分类号： C21D9/46 ,  C21D8/02 ,  C21D6/00 ,  C22C38/54 ,  C22C38/52 ,  C22C38/50 ,  C22C38/48 ,  C22C38/46 ,  C22C38/44 ,  C22C38/42 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00

摘要： Provided are a ferritic stainless steel sheet and a method for manufacturing the steel sheet. The ferritic stainless steel sheet according to the present invention has a chemical composition containing, by mass %, C: 0.005% to 0.025%, Si: 0.02% to 0.50%, Mn: 0.55% to 1.00%, P: 0.04% or less, S: 0.01% or less, Al: 0.001% to 0.10%, Cr: 15.5% to 18.0%, Ni: 0.1% to 1.0%, N: 0.005% to 0.025%, and the balance being Fe and inevitable impurities, an elongation after fracture of 28% or more, an average r-value of 0.75 or more, and a minimum value of maximum logarithmic strain at the forming limit, which is, determined on the basis of a forming limit diagram (FLD), of 0.15 or more.

公开(公告)号：US09920409B2

公开(公告)日：2018-03-20

申请号：US14375044

申请日：2013-01-24

申请人： JFE STEEL CORPORATION

发明人： Akito Mizutani ,  Mitsuyuki Fujisawa ,  Hiroki Ota ,  Hiroyuki Ogata

IPC分类号： C22C38/42 ,  C22C38/44 ,  C22C38/48 ,  C22C38/50 ,  C22C38/06 ,  F01N3/28 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C21D6/00 ,  C22C38/26 ,  C21D8/02

CPC分类号： C22C38/50 ,  C21D6/002 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0268 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/26 ,  C22C38/42 ,  C22C38/44 ,  C22C38/48 ,  F01N3/281 ,  F01N2330/02 ,  F01N2530/04 ,  Y02A50/2322 ,  Y10T428/12431

摘要： Provided is stainless steel foil that is suitably used for forming a catalyst carrier for an exhaust gas purifying facility, the catalyst carrier being installed in a vehicle that discharges exhaust gas having a temperature lower than the temperature of exhaust gas of a gasoline-powered automobile. The ferritic stainless steel foil contains, by mass %, C: 0.05% or less, Si: 2.0% or less, Mn: 1.0% or less, S: 0.005% or less, P: 0.05% or less, Cr: 11.0% to 25.0%, Ni: 0.05% to 0.30%, Al: 0.01% to 1.5%, Cu: 0.01% to 2.0%, N: 0.10% or less, and the balance being Fe and inevitable impurities.

公开(公告)号：US20160369368A1

公开(公告)日：2016-12-22

申请号：US15112901

申请日：2015-01-20

申请人： JFE STEEL CORPORATION

发明人： Masataka Yoshino ,  Hiroki Ota ,  Ayako Ta ,  Yukihiro Matsubara ,  Akito Mizutani ,  Mitsuyuki Fujisawa

IPC分类号： C21D9/46 ,  C22C38/52 ,  C22C38/50 ,  C22C38/48 ,  C22C38/44 ,  C22C38/42 ,  C22C38/32 ,  C22C38/30 ,  C22C38/28 ,  C22C38/26 ,  C22C38/24 ,  C22C38/22 ,  C22C38/20 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C21D8/02 ,  C22C38/54

CPC分类号： C21D9/46 ,  C21D6/002 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0247 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/18 ,  C22C38/20 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/30 ,  C22C38/32 ,  C22C38/40 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/52 ,  C22C38/54

摘要： A material for stainless steel cold rolling suitable for producing a cold-rolled stainless steel sheet that has sufficient corrosion resistance and ridging resistance as well as excellent formability and surface properties is provided. The material for stainless steel cold rolling according to the present invention contains, in terms of % by mass, C: 0.007% to 0.05%, Si: 0.02% to 0.50%, Mn: 0.05% to 1.0%, P: 0.04% or less, S: 0.01% or less, Cr: 15.5% to 18.0%, Al: 0.001% to 0.10%, N: 0.01% to 0.06%, and the balance being Fe and unavoidable impurities, wherein the material has a microstructure that includes 10% to 60% of a martensite phase in terms of area fraction, with the remainder being a ferrite phase, and the martensite phase has a hardness of HV500 or less.

摘要翻译： 提供了适用于制造具有足够的耐腐蚀性和耐皱纹性以及优异的成形性和表面性能的冷轧不锈钢板的不锈钢冷轧材料。 根据本发明的不锈钢冷轧材料，以质量％计含有C：0.007〜0.05％，Si：0.02〜0.50％，Mn：0.05〜1.0％，P：0.04％或 S：0.01％以下，Cr：15.5〜18.0％，Al：0.001〜0.10％，N：0.01〜0.06％，余量为Fe和不可避免的杂质，其中， 10％〜60％的马氏体相的面积率，其余为铁素体相，马氏体相的硬度为HV500以下。

公开(公告)号：US20160333439A1

公开(公告)日：2016-11-17

申请号：US15109941

申请日：2015-01-07

申请人： JFE STEEL CORPORATION

发明人： Masataka Yoshino ,  Hiroki Ota ,  Ayako Ta ,  Yukihiro Matsubara ,  Akito Mizutani ,  Mitsuyuki Fujisawa

IPC分类号： C21D9/48 ,  C21D6/00 ,  C22C38/54 ,  C22C38/52 ,  C22C38/50 ,  C22C38/00 ,  C22C38/46 ,  C22C38/44 ,  C22C38/42 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C21D8/02 ,  C22C38/48

CPC分类号： C21D9/48 ,  C21D6/004 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0263 ,  C21D8/0273 ,  C21D2211/005 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/20 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/30 ,  C22C38/32 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/52 ,  C22C38/54

摘要： Provided are a ferritic stainless steel and a method for producing the ferritic stainless steel. A ferritic stainless steel of the present invention contains, in terms of % by mass, C: 0.005% to 0.05%, Si: 0.02% to 0.50%, Mn: 0.05% to 1.0%, P: 0.04% or less, S: 0.01% or less, Cr: 15.5% to 18.0%, Al: 0.001% to 0.10%, N: 0.01% to 0.06%, V: 0.01% to 0.25%, Ti: 0.001% to 0.020%, Nb: 0.001% to 0.030%, and the balance being Fe and unavoidable impurities, in which V/(Ti+Nb)≧2.0 is satisfied.

摘要翻译： 本发明提供一种铁素体系不锈钢及其制造方法。 本发明的铁素体系不锈钢以质量％计含有C：0.005〜0.05％，Si：0.02〜0.50％，Mn：0.05〜1.0％，P：0.04％以下，S： 0.01％以下，Cr：15.5〜18.0％，Al：0.001〜0.10％，N：0.01〜0.06％，V：0.01〜0.25％，Ti：0.001〜0.020％，Nb：0.001％ 0.030％，其余为Fe和不可避免的杂质，其中满足V /（Ti + Nb）≥2.0。

公开(公告)号：US20150010771A1

公开(公告)日：2015-01-08

申请号：US14375044

申请日：2013-01-24

申请人： JFE STEEL CORPORATION

发明人： Akito Mizutani ,  Mitsuyuki Fujisawa ,  Hiroki Ota ,  Hiroyuki Ogata

IPC分类号： C22C38/50 ,  C22C38/44 ,  C22C38/00 ,  C22C38/04 ,  C22C38/02 ,  C22C38/48 ,  C22C38/42

CPC分类号： C22C38/50 ,  C21D6/002 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0268 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/26 ,  C22C38/42 ,  C22C38/44 ,  C22C38/48 ,  F01N3/281 ,  F01N2330/02 ,  F01N2530/04 ,  Y02A50/2322 ,  Y10T428/12431

摘要： Provided is stainless steel foil that is suitably used for forming a catalyst carrier for an exhaust gas purifying facility, the catalyst carrier being installed in a vehicle that discharges exhaust gas having a temperature lower than the temperature of exhaust gas of a gasoline-powered automobile. The ferritic stainless steel foil contains, by mass %, C: 0.05% or less, Si: 2.0% or less, Mn: 1.0% or less, S: 0.005% or less, P: 0.05% or less, Cr: 11.0% to 25.0%, Ni: 0.05% to 0.30%, Al: 0.01% to 1.5%, Cu: 0.01% to 2.0%, N: 0.10% or less, and the balance being Fe and inevitable impurities.

摘要翻译： 提供适合用于形成用于排气净化设备的催化剂载体的不锈钢箔，催化剂载体安装在排出具有低于汽油动力汽车的排气温度的排气的车辆中。 铁素体系不锈钢箔以质量％计含有C：0.05％以下，Si：2.0％以下，Mn：1.0％以下，S：0.005％以下，P：0.05％以下，Cr：11.0％ 至25.0％，Ni：0.05〜0.30％，Al：0.01〜1.5％，Cu：0.01〜2.0％，N：0.10％以下，余量为Fe和不可避免的杂质。