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1. 发明公开

EP3029170A1 FERRITE-MARTENSITE TWO-PHASE STAINLESS STEEL, AND METHOD FOR PRODUCING SAME 有权
标题翻译：铁素体 - 马氏体双相不锈钢及其制造方法
公开(公告)号：EP3029170A1
公开(公告)日：2016-06-08
申请号：EP14859015.1
申请日：2014-10-27
申请人： JFE Steel Corporation
发明人： ISHII, Tomohiro , OTA, Hiroki , KAMI, Chikara , MURATA, Saiichi , FUJISAWA, Mitsuyuki , ISHIBASHI, Genichi
IPC分类号： C22C38/00 , C21D8/02 , C21D9/46 , C22C38/58
CPC分类号： C21D9/46 , C21D6/004 , C21D6/005 , C21D6/008 , C21D8/0226 , C21D8/0263 , C21D2211/004 , C21D2211/005 , C21D2211/008 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/004 , C22C38/005 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/52 , C22C38/54 , C22C38/58
摘要： Provided are ferrite-martensite dual-phase stainless steel having satisfactory corrosion resistance and workability, which are required for a material for the body of a freight car, and having excellent low-temperature toughness and a method for manufacturing the stainless steel.
The ferrite-martensite dual-phase stainless steel has a specified chemical composition, in which inequalities (I) and (II) below are satisfied, and a steel microstructure including a dual phase of a ferrite phase and a martensite phase, in which the content of the martensite phase is 5% or more and 95% or less in terms of vol.%: 10.5 ≤ Cr + 1.5 × Si ≤ 13.5 1.5 ≤ 30 × C + N + Ni + 0.5 × Mn ≤ 6.0 where Cr and Si in inequality (I) above and C, N, Ni, and Mn in inequality (II) above respectively represent the contents (mass%) of the corresponding chemical elements.
摘要翻译：本发明提供一种具有令人满意的耐腐蚀性和加工性的铁素体 - 马氏体双相不锈钢，其是用于货车车体的材料所需的并且具有优异的低温韧性以及用于制造该不锈钢的方法。铁素体 - 马氏体双相不锈钢具有满足以下不等式（I）和（II）的特定化学组成和包含铁素体相和马氏体相的双相的钢组织，其中含量马氏体相的含量以体积％计为5％以上且95％以下：10.5≤Cr+ 1.5×Si≤13.51.5≤30×C + N + Ni + 0.5×Mn≤6.0其中Cr和Si 上述不等式（I）和上述不等式（II）中的C，N，Ni和Mn分别表示相应化学元素的含量（质量％）。

2. 发明公开

EP2799577A1 FERRITIC STAINLESS STEEL 有权
标题翻译：铁素体不锈钢
公开(公告)号：EP2799577A1
公开(公告)日：2014-11-05
申请号：EP12863746.9
申请日：2012-12-13
申请人： JFE Steel Corporation
发明人： ISHII, Tomohiro , ISHIKAWA, Shin , OGATA, Hiroyuki
IPC分类号： C22C38/00 , C21D9/46 , C22C38/50 , C22C38/54
CPC分类号： C22C38/54 , C21D6/002 , C21D9/46 , C21D9/50 , C21D2211/005 , C21D2251/04 , C22C38/00 , C22C38/001 , C22C38/004 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/40 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/52
摘要： Provided is ferritic stainless steel that realizes high corrosion resistance of a welded zone and that has high resistance to weld cracking. The ferritic stainless steel contains, by mass%, C: 0.001% to 0.030%, Si: 0.03% to 0.80%, Mn: 0.05% to 0.50%, P: 0.03% or less, S: 0.01% or less, Cr: 19.0% to 28.0%, Ni: 0.01% to less than 0.30%, Mo: 0.2% to 3.0%, Al: more than 0.15% to 1.2%, V: 0.02% to 0.50%, Cu: less than 0.1%, Ti: 0.05% to 0.50%, N: 0.001% to 0.030%, and Nb: less than 0.05%. Expression (1) is satisfied and the balance is Fe and inevitable impurities. Nb × P ≤ 0.0005
In Expression (1), each element symbol represents the content (by mass%) of the element.
摘要翻译：本发明提供实现焊接区域的高耐腐蚀性且耐焊接裂纹性高的铁素体系不锈钢。该铁素体系不锈钢以质量％计含有C：0.001〜0.030％，Si：0.03〜0.80％，Mn：0.05〜0.50％，P：0.03％以下，S：0.01％以下，Cr： 19.0％〜28.0％，Ni：0.01％〜小于0.30％，Mo：0.2％〜3.0％，Al：大于0.15％〜1.2％，V：0.02％〜0.50％，Cu：小于0.1％，Ti ：0.05〜0.50％，N：0.001〜0.030％，Nb：小于0.05％。满足表达式（1），余量为Fe和不可避免的杂质。 Nb×P≤0.0005在式（1）中，各元素符号表示元素的含量（以质量％计）。

3. 发明公开

EP2626440A1 FERRITIC STAINLESS STEEL HAVING EXCELLENT CORROSION RESISTANCE AND ELECTRICAL CONDUCTIVITY, METHOD FOR PRODUCING SAME, SOLID POLYMER FUEL CELL SEPARATOR, AND SOLID POLYMER FUEL CELL 有权
标题翻译：具有优良的耐腐蚀性和导电性，用于生产IT，以及固体高分子型燃料电池FESTPOLYMERBRENNSTOFFZELLENSEPARATOR铁素体不锈钢
公开(公告)号：EP2626440A1
公开(公告)日：2013-08-14
申请号：EP11830806.3
申请日：2011-10-06
申请人： JFE Steel Corporation
发明人： ISHII, Tomohiro , ISHIKAWA, Shin , UJIRO, Takumi
IPC分类号： C22C38/00 , C22C38/22 , C22C38/54 , C23C22/34 , H01M8/02 , H01M8/10
CPC分类号： C22C38/22 , B21B1/28 , C22C38/001 , C22C38/002 , C22C38/004 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/18 , C22C38/20 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/44 , C23G1/086 , H01M8/021 , H01M2008/1095 , Y02E60/50 , Y02P70/56
摘要： An object is to provide ferritic stainless steel excellent in corrosion resistance and conductivity that can be ideally used for a separator of a proton-exchange membrane fuel cell, which has low contact resistance and is possible to ensure corrosion resistance in a potential range in which Cr exhibits transpassive dissolution. Specifically, a ferritic stainless steel excellent in corrosion resistance and conductivity and a method for manufacturing the same, the stainless steel having a chemical composition containing, by mass%, C: 0.001% or more and 0.05% or less, Si: 0.001% or more and 0.5% or less, Mn: 0.001% or more and 1.0% or less, Al: 0.001% or more and 0.5% or less, N: 0.001% or more and 0.05% or less, Cr; 17% or more and 23% or less, Mo: 0.1% or less and the balance being Fe and inevitable impurities and a passivation film on the surface of the stainless steel which is obtained by immersing the stainless steel in a solution for an immersion treatment, said solution mainly contains hydrofluoric acid or a liquid mixture of hydrofluoric acid and nitric acid, and in said solution the relationship [HF]≥[HNO 3 ] is satisfied, where [HF] denotes the concentration of hydrofluoric acid (mass%) and [HNO 3 ] denotes the concentration of nitric acid (mass%).
摘要翻译：一个目的是提供优良的铁素体不锈钢的耐腐蚀性和导电性也可理想地被用于质子交换膜燃料电池的分离器，其具有低的接触电阻，并且能够确保耐腐蚀性在其中的Cr的电位范围展品反式被动溶解。具体而言，铁素体不锈钢具有优异的耐腐蚀性和导电性和用于制造其的方法，具有如下化学成分，以质量％计含有C的不锈钢：0.001％以上且0.05％以下，Si：0.001％或以上且0.5％以下，Mn：0.001％以上且1.0％以下，Al：0.001％以上且0.5％以下，N：0.001％以上且0.05％以下，Cr; 17％或更多和23％或以下，Mo：0.1％以下，余量由Fe和不可避免的杂质和钝化膜，在不锈钢的表面全部是由浸渍在不锈钢中的溶液用于向浸渍处理而得到的，所说的溶液主要含有氢氟酸或氢氟酸和硝酸的液体混合物，并在所述溶液中的关系[HF]‰¥[HNO 3]的关系，其中[HF]表示氢氟酸的浓度（质量％）和[HNO 3]表示的硝酸（质量％）的浓度。

4. 发明授权

EP2163658B9 FERRITIC STAINLESS STEEL SHEET HAVING EXCELLENT CORROSION RESISTANCE AGAINST SULFURIC ACID, AND METHOD FOR PRODUCTION THEREOF 有权
公开(公告)号：EP2163658B9
公开(公告)日：2020-10-28
申请号：EP08765822.5
申请日：2008-06-18
申请人： JFE Steel Corporation
发明人： ISHII, Tomohiro , FUNAKAWA, Yoshimasa , UJIRO, Takumi , OHTA, Masayuki
IPC分类号： C22C38/02 , C22C38/04 , C22C38/42 , C22C38/48 , C22C38/44 , C22C38/50 , C21D8/02 , C21D9/46 , C22C38/00

5. 发明授权

EP2458038B1 STAINLESS STEEL FOR FUEL CELL HAVING EXCELLENT CORROSION RESISTANCE AND METHOD FOR PRODUCING SAME 有权
公开(公告)号：EP2458038B1
公开(公告)日：2019-06-12
申请号：EP10802366.4
申请日：2010-07-22
申请人： JFE Steel Corporation
发明人： IDE, Shinsuke , ISHII, Tomohiro , NISHIYAMA, Naoki , ISHIKAWA, Shin , UJIRO, Takumi , MAKIISHI, Noriko
IPC分类号： C25D11/34 , C22C38/00 , C22C38/28 , H01M8/02 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/26 , C22C38/44

6. 发明授权

EP2910659B1 FERRITE STAINLESS STEEL AND MANUFACTURING METHOD THEREFOR 有权
标题翻译：铁氧体不锈钢及其制造方法
公开(公告)号：EP2910659B1
公开(公告)日：2017-12-27
申请号：EP13849239.2
申请日：2013-10-22
申请人： JFE Steel Corporation
发明人： ISHII, Tomohiro , ISHIKAWA, Shin , OGATA, Hiroyuki , OTA, Hiroki
IPC分类号： C22C38/00 , C21D9/46 , C23G1/08 , B21B1/22 , C21D1/26 , C25F1/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/44 , C22C38/46 , C22C38/50 , C22C38/48 , C22C38/42 , C22C38/54 , C22C38/58 , C21D8/00 , C21D6/00
CPC分类号： C22C38/58 , B21B1/22 , C21D1/26 , C21D6/004 , C21D6/005 , C21D6/008 , C21D8/005 , C21D9/46 , C21D2211/004 , C21D2211/005 , C22C38/001 , C22C38/004 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/54 , C25F1/00
摘要： Provided are a ferritic stainless steel having a corrosion resistance at a certain level or more and a temper-color removal performance at a certain level or more and a method for manufacturing the ferritic stainless steel. A used ferritic stainless steel has a composition containing, by mass%, C: 0.001% to 0.030%, Si: 0.03% to 0.30%, P: 0.05% or less, S: 0.01% or less, Cr: more than 22.0% to 28.0%, Mo: 0.2% to 3.0%, Al: 0.01% to 0.15%, Ti: more than 0.30% to 0.80%, V: 0.001% to 0.080%, and N: 0.001% to 0.050%; Mn: 0.05% to 0.30% and Ni: 0.01% to 5.00%, or Mn: 0.05% to 2.00% and Ni: 0.01% to 0.30%; Nb: 0.05% or less as an optional component; and the balance being Fe and inevitable impurities, and the steel has a surface where TiN having a grain diameter of 1 µm or more is distributed at a density of 30 particles/mm 2 or more.

7. 发明授权

EP2182085B1 FERRITIC STAINLESS STEEL PLATE EXCELLENT IN PUNCHABILITY AND PROCESS FOR PRODUCTION OF THE SAME 有权
标题翻译：铁素体不锈钢板的冲压性和生产工艺相同
公开(公告)号：EP2182085B1
公开(公告)日：2017-10-11
申请号：EP08777563.1
申请日：2008-06-18
申请人： JFE Steel Corporation
发明人： ISHII, Tomohiro , FUNAKAWA, Yoshimasa , OKADA, Shuji , OHTA, Masayuki
IPC分类号： C22C38/00 , B21B1/26 , B21B3/02 , C21D9/46 , C22C38/50 , C22C38/54 , C21D6/00 , C21D8/04 , C21D1/32 , C21D1/673 , C22C38/02 , C22C38/04 , C22C38/42 , C22C38/48
CPC分类号： C22C38/02 , B21B3/02 , C21D1/32 , C21D1/673 , C21D6/002 , C21D8/0436 , C21D8/0473 , C21D2211/004 , C21D2211/005 , C22C38/04 , C22C38/42 , C22C38/48 , C22C38/50

8. 发明公开

EP2738279A1 STAINLESS STEEL FOR FUEL CELL SEPARATOR 审中-公开
标题翻译： ROSTFREIER STAHLFÜRBRENNSTOFFZELLENSEPARATOR
公开(公告)号：EP2738279A1
公开(公告)日：2014-06-04
申请号：EP12820243.9
申请日：2012-07-25
申请人： JFE Steel Corporation
发明人： MAKIISHI, Noriko , NORO, Hisato , ISHIKAWA, Shin , IDE, Shinsuke , ISHII, Tomohiro , NAGOSHI, Masayasu
IPC分类号： C22C38/00 , C22C38/44 , C22C38/50 , C23F1/00 , C23F17/00 , C23G1/08 , C25F1/06 , H01M8/02 , C23C22/34 , H01M8/10
CPC分类号： H01M8/021 , C21D6/004 , C21D9/46 , C22C38/001 , C22C38/004 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/22 , C22C38/26 , C22C38/28 , C22C38/40 , C23G1/086 , C25F1/00 , Y02P70/56 , Y10T428/12993
摘要： Stainless steel for fuel cell separators are provided which exhibit stable contact resistance characteristics and excellent practical utility.
The stainless steel contains not less than 16 mass% of Cr. When the surface configuration of the stainless steel is analyzed with a scanning electron microscope at a spatial resolution of not more than 0.1 µm, the surface modulus is not less than 1.02. Preferably, the chemical composition further includes C: not more than 0.03%, Si: not more than 1.0%, Mn: not more than 1.0%, S: not more than 0.01%, P: not more than 0.05%, Al: not more than 0.20%, N: not more than 0.03%, Cr: 16 to 40%, and one or more of Ni: not more than 20%, Cu: not more than 0.6% and Mo: not more than 2.5%, the balance being Fe and inevitable impurities.
摘要翻译：提供用于燃料电池分离器的不锈钢，其具有稳定的接触电阻特性和优异的实用性。不锈钢含有不少于16质量％的Cr。当扫描电子显微镜以不大于0.1μm的空间分辨率分析不锈钢的表面形状时，表面模量不小于1.02。优选地，化学组成还包括C：不大于0.03％，Si：不大于1.0％，Mn：不大于1.0％，S：不大于0.01％，P：不大于0.05％，Al：不大于0.20％，N：0.03％以下，Cr：16〜40％，Ni：不大于20％，Cu：不大于0.6％，Mo：不大于2.5％余量为Fe和不可避免的杂质。

9. 发明公开

EP2738277A1 STAINLESS STEEL FOR FUEL CELL SEPARATOR 审中-公开
标题翻译： ROSTFREIER STAHLFÜREINEN BRENNSTOFFZELLENSEPARATOR
公开(公告)号：EP2738277A1
公开(公告)日：2014-06-04
申请号：EP12819761.3
申请日：2012-07-25
申请人： JFE Steel Corporation
发明人： MAKIISHI, Noriko , NORO, Hisato , ISHIKAWA, Shin , IDE, Shinsuke , ISHII, Tomohiro , NAGOSHI, Masayasu
IPC分类号： C22C38/00 , C22C38/44 , C22C38/50 , C23C22/34 , C23F17/00 , C23G1/08 , C25F1/06 , H01M8/02 , C23F1/00 , H01M8/10
CPC分类号： H01M8/021 , C21D6/004 , C21D9/00 , C21D9/46 , C22C38/001 , C22C38/004 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/26 , C22C38/28 , C22C38/40 , C23G1/086 , C25F1/00
摘要： Stainless steel for fuel cell separators are provided which exhibit excellent contact resistance characteristics and practical utility. The stainless steel contains C: not more than 0.03%, Si: not more than 1.0%, Mn: not more than 1.0%, S: not more than 0.01%, P: not more than 0.05%, Al: not more than 0.20%, N: not more than 0.03%, Cr: 16 to 40%, and one or more of Ni: not more than 20%, Cu: not more than 0.6% and Mo: not more than 2.5%, the balance being Fe and inevitable impurities. According to X-ray photoelectron spectroscopy, the surface of the stainless steel contains fluorine and provides a 3.0 or higher ratio of the total of atomic concentrations of Cr and Fe in other than the metallic forms calculated from data resulting from the separation of peaks of Cr and Fe into metallic peaks and peaks other than the metallic peaks to the total of atomic concentrations of Cr and Fe in the metallic forms calculated from data resulting from the separation of peaks of Cr and Fe into metallic peaks and peaks other than the metallic peaks.
摘要翻译：提供用于燃料电池隔板的不锈钢，其具有优异的接触电阻特性和实用性。不锈钢含有C：0.03％以下，Si：1.0％以下，Mn：1.0％以下，S：0.01％以下，P：0.05％以下，Al：0.20以下％，N：0.03％以下，Cr：16〜40％，Ni：不大于20％，Cu：不大于0.6％，Mo：不大于2.5％，余量为Fe 和不可避免的杂质。根据X射线光电子能谱，不锈钢的表面含有氟，并且除了从分离Cr的数据得到的数据计算出的Cr和Fe的原子浓度的总和之外，还提供3.0以上的比例 Fe除金属峰以外的金属峰和峰以金属形式计算的Cr和Fe的原子浓度总和由金属峰和除了金属峰以外的峰分离而得到的数据计算得到。

10. 发明授权

EP2100983B1 FERRITIC STAINLESS STEEL SHEET FOR WATER HEATER EXCELLENT IN CORROSION RESISTANCE AT WELDED PART AND STEEL SHEET TOUGHNESS 有权
标题翻译：铁素体不锈钢的TIN WITH优异的强度和焊接区域的优良的耐蚀性能的用于水加热器
公开(公告)号：EP2100983B1
公开(公告)日：2012-10-31
申请号：EP08703088.8
申请日：2008-01-07
申请人： JFE Steel Corporation
发明人： FUKUDA, Kunio , FUNAKAWA, Yoshimasa , OKADA, Shuji , KASAMO, Toshihiro , KOBORI, Katsuhiro , UJIRO, Takumi , ISHII, Tomohiro
IPC分类号： C21D6/00 , C21D8/02 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/22 , C22C38/26 , C22C38/44 , C22C38/46 , C22C38/48 , C21D9/46 , C22C38/00 , C22C38/50
CPC分类号： C22C38/02 , C21D6/002 , C21D8/0226 , C21D8/0236 , C21D8/0273 , C21D9/46 , C21D2211/001 , C22C38/001 , C22C38/04 , C22C38/06 , C22C38/22 , C22C38/26 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50

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