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1. 发明授权

US08163233B2 Martensitic stainless steel for welded structures 有权
标题翻译：用于焊接结构的马氏体不锈钢
公开(公告)号：US08163233B2
公开(公告)日：2012-04-24
申请号：US12379724
申请日：2009-02-27
申请人： Hisashi Amaya , Kazuhiro Ogawa , Akira Taniyama , Masakatsu Ueda , Hideki Takabe
发明人： Hisashi Amaya , Kazuhiro Ogawa , Akira Taniyama , Masakatsu Ueda , Hideki Takabe
IPC分类号： C22C38/44 , C22C38/42
CPC分类号： C22C38/02 , C22C38/005 , C22C38/04 , C22C38/06 , C22C38/40
摘要： A martensitic stainless steel for welded structures including by mass %, C: 0.001 to 0.05%, Si: 0.05 to 1%, Mn: 0.05 to 2%, P: 0.03% or less, REM: 0.0005 to 0.1%, Cr: 8 to 16%, Ni: 0.1 to 9% and sol. Al: 0.001 to 0.1%; and further including one or more elements selected from among Ti: 0.005 to 0.5%, Zr: 0.005 to 0.5%, Hf: 0.005 to 0.5%, V: 0.005 to 0.5% and Nb: 0.005 to 0.5%; and O: 0.005% or less, N: 0.1% or less, with the balance being Fe and impurities; and the P and REM content satisfies: P≦0.6×REM. This steel possesses excellent SCC (stress corrosion cracking) resistance in welded sections in Sweet environments.
摘要翻译：焊接结构的马氏体系不锈钢，以质量％计，C：0.001〜0.05％，Si：0.05〜1％，Mn：0.05〜2％，P：0.03％以下，REM：0.0005〜0.1％，Cr：8 至16％，Ni：0.1〜9％，溶胶。 Al：0.001〜0.1％进一步包括选自Ti：0.005〜0.5％，Zr：0.005〜0.5％，Hf：0.005〜0.5％，V：0.005〜0.5％，Nb：0.005〜0.5％的一种或多种元素; O：0.005％以下，N：0.1％以下，余量为Fe和杂质; P和REM含量满足：P＆nlE; 0.6×REM。这种钢在甜蜜环境中的焊接部分具有优异的SCC（应力腐蚀开裂）性。

2. 发明申请

US20090232694A1 Martensitic stainless steel for welded structures 有权
标题翻译：用于焊接结构的马氏体不锈钢
公开(公告)号：US20090232694A1
公开(公告)日：2009-09-17
申请号：US12379724
申请日：2009-02-27
申请人： Hisashi Amaya , Kazuhiro Ogawa , Akira Taniyama , Masakatsu Ueda , Hideki Takabe
发明人： Hisashi Amaya , Kazuhiro Ogawa , Akira Taniyama , Masakatsu Ueda , Hideki Takabe
IPC分类号： C22C38/40 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/50
CPC分类号： C22C38/02 , C22C38/005 , C22C38/04 , C22C38/06 , C22C38/40
摘要： A martensitic stainless steel for welded structures including by mass %, C: 0.001 to 0.05%, Si: 0.05 to 1%, Mn: 0.05 to 2%, P: 0.03% or less, REM: 0.0005 to 0.1%, Cr: 8 to 16%, Ni: 0.1 to 9% and sol. Al: 0.001 to 0.1%; and further including one or more elements selected from among Ti: 0.005 to 0.5%, Zr: 0.005 to 0.5%, Hf: 0.005 to 0.5%, V: 0.005 to 0.5% and Nb: 0.005 to 0.5%; and O: 0.005% or less, N: 0.1% or less, with the balance being Fe and impurities; and the P and REM content satisfies: P≦0.6×REM. This steel possesses excellent SCC (stress corrosion cracking) resistance in welded sections in Sweet environments.
摘要翻译：焊接结构的马氏体系不锈钢，以质量％计，C：0.001〜0.05％，Si：0.05〜1％，Mn：0.05〜2％，P：0.03％以下，REM：0.0005〜0.1％，Cr：8 至16％，Ni：0.1〜9％，溶胶。 Al：0.001〜0.1％进一步包括选自Ti：0.005〜0.5％，Zr：0.005〜0.5％，Hf：0.005〜0.5％，V：0.005〜0.5％，Nb：0.005〜0.5％的一种或多种元素; O：0.005％以下，N：0.1％以下，余量为Fe和杂质; P和REM含量满足：P <= 0.6×REM。这种钢在甜蜜环境中的焊接部分具有优异的SCC（应力腐蚀开裂）性。

3. 发明申请

US20140212322A1 DUPLEX STAINLESS STEEL 有权
标题翻译：双相不锈钢
公开(公告)号：US20140212322A1
公开(公告)日：2014-07-31
申请号：US14342039
申请日：2012-08-28
申请人： Hideki Takabe , Hisashi Amaya , Kazuhiro Ogawa
发明人： Hideki Takabe , Hisashi Amaya , Kazuhiro Ogawa
IPC分类号： C22C38/58 , C22C38/46 , C22C38/00 , C22C38/42 , C22C38/06 , C22C38/02 , C22C38/54 , C22C38/44
CPC分类号： C22C38/58 , C21D6/004 , C21D6/005 , C21D9/08 , C21D9/50 , C21D2211/001 , C21D2211/004 , C21D2211/005 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/54
摘要： Provided is duplex stainless steel having high strength, SCC resistance and SSC resistance excellent in a high-temperature chloride environment, and capable of suppressing precipitation of a σ phase. The duplex stainless steel of the present embodiment includes, in mass %, of: C: at most 0.03%; Si: 0.2 to 1%; Mn: more than 5.0% to at most 10%; P: at most 0.040%; S: at most 0.010%; Ni: 4.5 to 8%; sol. Al: at most 0.040%; N: more than 0.2% to at most 0.4%; Cr: 24 to 29%; Mo: 0.5 to less than 1.5%; Cu: 1.5 to 3.5%; W: 0.05 to 0.2%; the balance being Fe and impurities, wherein the duplex stainless steel satisfies Formula (1): Cr+8Ni+Cu+Mo+W/2≧65 . . . (1), where a symbol of each element in Formula (1) represents a content of the element (in mass %).
摘要翻译：提供在高温氯化物环境中具有优异的高强度，耐SCC性和耐SSC性的双相不锈钢，并且能够抑制淀粉的沉淀。相。本实施方式的双相不锈钢以质量％计含有：C：0.03％以下， Si：0.2〜1％ Mn：超过5.0％至至多10％; P：0.040％以下; S：0.010％以下; Ni：4.5〜8％溶胶 Al：0.040％以下; N：0.2％以上0.4％以下; Cr：24〜29％ Mo：0.5〜小于1.5％ Cu：1.5〜3.5％ W：0.05〜0.2％余量为Fe和杂质，其中双相不锈钢满足式（1）：Cr + 8Ni + Cu + Mo + W /2≥65。。。（1）中，式（1）中的各元素的符号表示元素的含量（质量％）。

4. 发明授权

US10000832B2 Duplex stainless steel 有权
公开(公告)号：US10000832B2
公开(公告)日：2018-06-19
申请号：US14342039
申请日：2012-08-28
申请人： Hideki Takabe , Hisashi Amaya , Kazuhiro Ogawa
发明人： Hideki Takabe , Hisashi Amaya , Kazuhiro Ogawa
IPC分类号： C22C38/58 , C21D9/08 , C22C38/00 , C22C38/02 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/54 , C21D6/00 , C21D9/50
CPC分类号： C22C38/58 , C21D6/004 , C21D6/005 , C21D9/08 , C21D9/50 , C21D2211/001 , C21D2211/004 , C21D2211/005 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/54
摘要： Provided is duplex stainless steel having high strength, SCC resistance and SSC resistance excellent in a high-temperature chloride environment, and capable of suppressing precipitation of a σ phase. The duplex stainless steel of the present embodiment includes, in mass %, of: C: at most 0.03%; Si: 0.2 to 1%; Mn: more than 5.0% to at most 10%; P: at most 0.040%; S: at most 0.010%; Ni: 4.5 to 8%; sol. Al: at most 0.040%; N: more than 0.2% to at most 0.4%; Cr: 24 to 29%; Mo: 0.5 to less than 1.5%; Cu: 1.5 to 3.5%; W: 0.05 to 0.2%; the balance being Fe and impurities, wherein the duplex stainless steel satisfies Formula (1): Cr+8Ni+Cu+Mo+W/2≥65 . . . (1), where a symbol of each element in Formula (1) represents a content of the element (in mass %).

5. 发明申请

US20120177529A1 DUPLEX STAINLESS STEEL 审中-公开
标题翻译：双相不锈钢
公开(公告)号：US20120177529A1
公开(公告)日：2012-07-12
申请号：US13411761
申请日：2012-03-05
申请人： Hisashi Amaya , Hideki Takabe , Kazuhiro Ogawa
发明人： Hisashi Amaya , Hideki Takabe , Kazuhiro Ogawa
IPC分类号： C22C38/58 , C22C38/42 , C22C38/44
CPC分类号： C22C38/44 , C22C1/02 , C22C38/001 , C22C38/02 , C22C38/42 , C22C38/58
摘要： A duplex stainless steel excellent in the weldability during large heat input welding and in the stress corrosion cracking resistance in a chloride environment containing corrosive associated gases has a chemical composition consisting, by mass %, of C: 0.03% or less, Si: 0.2 to 1%, Mn: 5.0% or less, P: 0.040% or less, S: 0.010% or less, sol. Al: 0.040% or less, Ni: 4 to 8%, Cr: 20 to 28%, Mo: 0.5 to 2.0%, Cu: more than 2.0% and 4.0% or less and N: 0.1 to 0.35%, and optionally contains one or more selected from among V, Ca, Mg, B and a rare earth metal(s), with the balance being Fe and impurities; wherein the duplex stainless steel satisfies the following formulas: 2.2Cr+7Mo+3Cu>66 (1) Cr+11Mo+10Ni
摘要翻译：在含有腐蚀性相关气体的氯化物环境中，在大的热输入焊接时的焊接性和耐应力腐蚀开裂性优异的双相不锈钢具有质量％C：0.03％以下，Si：0.2〜 1％，Mn：5.0％以下，P：0.040％以下，S：0.010％以下。 Al：0.040％以下，Ni：4〜8％，Cr：20〜28％，Mo：0.5〜2.0％，Cu：大于2.0％，4.0％以下，N：0.1〜0.35％选自V，Ca，Mg，B和稀土金属中的一种或多种，余量为Fe和杂质; 其中双相不锈钢满足下列公式：2.2Cr + 7Mo + 3Cu> 66（1）Cr + 11Mo + 10Ni <12（Cu + 30N）（2），其中符号表示钢中元素的质量％。

6. 发明申请

US20060201587A1 Welded structure having improved resistance to stress corrosion cracking 有权
标题翻译：具有改善的耐应力腐蚀开裂性的焊接结构
公开(公告)号：US20060201587A1
公开(公告)日：2006-09-14
申请号：US11366442
申请日：2006-03-03
申请人： Hisashi Amaya , Kazuhiro Ogawa , Kunio Kondo , Masayuki Sagara , Hiroyuki Hirata
发明人： Hisashi Amaya , Kazuhiro Ogawa , Kunio Kondo , Masayuki Sagara , Hiroyuki Hirata
IPC分类号： C22C38/40
CPC分类号： B23K9/0286 , B23K9/16 , B23K9/23 , B23K35/3086 , B23K2101/10 , B23K2103/05 , C21D9/50 , C22C38/004 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/40 , C22C38/42 , C22C38/44 , Y10T428/12611 , Y10T428/12979 , Y10T428/13
摘要： This invention relates to a welded line pipe structure for transporting corrosive petroleum or natural gas. It is constituted by martensitic stainless steel pipes containing 8-16% Cr and at most 0.05% C. By suitably controlling the welding conditions at the time of girth welding of the steel pipes so as to ensure that the Cr concentration in grain boundary Cr-depleted portions existing immediately beneath a weld oxide scale is at least 5%, the occurrence of SCC in a high temperature CO2 environment can be prevented.
摘要翻译：本发明涉及一种输送腐蚀性石油或天然气的焊接管道结构。由含有8-16％Cr和最多0.05％C的马氏体不锈钢管构成。通过适当控制钢管的环形焊接时的焊接条件，以确保Cr界限Cr浓度Cr- 焊接氧化皮刻度正下方存在的贫化部分为至少5％，可以防止在高温CO 2环境中出现SCC。

7. 发明授权

US07238434B2 Welded structure having improved resistance to stress corrosion cracking 有权
标题翻译：具有改善的耐应力腐蚀开裂性的焊接结构
公开(公告)号：US07238434B2
公开(公告)日：2007-07-03
申请号：US11366442
申请日：2006-03-03
申请人： Hisashi Amaya , Kazuhiro Ogawa , Kunio Kondo , Masayuki Sagara , Hiroyuki Hirata
发明人： Hisashi Amaya , Kazuhiro Ogawa , Kunio Kondo , Masayuki Sagara , Hiroyuki Hirata
IPC分类号： B32B15/04 , B32B15/18 , C21D9/08 , F16L9/22
CPC分类号： B23K9/0286 , B23K9/16 , B23K9/23 , B23K35/3086 , B23K2101/10 , B23K2103/05 , C21D9/50 , C22C38/004 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/40 , C22C38/42 , C22C38/44 , Y10T428/12611 , Y10T428/12979 , Y10T428/13
摘要： This invention relates to a welded line pipe structure for transporting corrosive petroleum or natural gas. It is constituted by martensitic stainless steel pipes containing 8–16% Cr and at most 0.05% C. By suitably controlling the welding conditions at the time of girth welding of the steel pipes so as to ensure that the Cr concentration in grain boundary Cr-depleted portions existing immediately beneath a weld oxide scale is at least 5%, the occurrence of SCC in a high temperature CO2 environment can be prevented.
摘要翻译：本发明涉及一种输送腐蚀性石油或天然气的焊接管道结构。由含有8-16％Cr和最多0.05％C的马氏体不锈钢管构成。通过适当控制钢管的环形焊接时的焊接条件，以确保Cr界限Cr浓度Cr- 焊接氧化皮刻度正下方存在的贫化部分为至少5％，可以防止在高温CO 2环境中出现SCC。

8. 发明授权

US5849111A Duplex stainless steel 失效
标题翻译：双相不锈钢
公开(公告)号：US5849111A
公开(公告)日：1998-12-15
申请号：US718574
申请日：1996-11-06
申请人： Masaaki Igarashi , Kunio Kondo , Kazuhiro Ogawa , Masakatsu Ueda , Tomoki Mori
发明人： Masaaki Igarashi , Kunio Kondo , Kazuhiro Ogawa , Masakatsu Ueda , Tomoki Mori
IPC分类号： C22C38/00 , C22C38/44 , C22C38/58
CPC分类号： C22C38/44 , C22C38/001
摘要： A super duplex stainless steel with low susceptibility to weld cracks and high weldability, as well as the resistance to stress corrosion cracking and toughness of the weld zones. The steel is therefore suitable for a wide range of applications including heat exchangers exposed to sea water, brine-resistant equipment and structures, pipings in chemical plants, line pipes, and oil well pipes. The steel includes, in weight %, 2.0% or less Si, 2.0% or less Mn, 22.0-24.0% Cr, 4.5-6.5% Ni, 4.0-4.8% Mo, 0.001-0.15% Al, and 0.25-0.35% N, the remains of Fe and inevitable impurities including 0.03% or less C, 0.05% or less P and 0.005% or less S, and a RVS, the index of susceptibility to cracking on welding, 7 or less, and a PREW, the index of pitting resistance, greater than 40.
摘要翻译： PCT No.PCT / JP95 / 00647 Sec。 371日期：1996年11月6日 102（e）日期1996年11月6日PCT 1995年4月4日PCT PCT。公开号WO95 / 27090 日期1995年10月12日一种具有低焊接裂纹敏感性和高可焊性的超级双相不锈钢，以及耐应力腐蚀开裂和焊接区韧性。因此，钢适用于广泛的应用，包括暴露于海水的热交换器，防盐水设备和结构，化工厂的管道，管道管道和油井管道。钢的重量％包括2.0％以下的Si，2.0％以下的Mn，22.0-24.0％的Cr，4.5-6.5％的Ni，4.0-4.8％的Mo，0.001-0.15％的Al和0.25-0.35％的N ，余量为Fe和不可避免的杂质，包括0.03％以下的C，0.05％以下的P和0.005％以下的S，RVS，焊接开裂敏感性指数为7以下，PREW，的耐点蚀性，大于40。

9. 发明授权

US6129999A High-strength welded steel structures having excellent corrosion resistance 失效
标题翻译：具有优异耐腐蚀性的高强度焊接钢结构
公开(公告)号：US6129999A
公开(公告)日：2000-10-10
申请号：US43649
申请日：1998-03-25
申请人： Masakatsu Ueda , Kazuhiro Ogawa , Kunio Kondo , Masaaki Igarashi
发明人： Masakatsu Ueda , Kazuhiro Ogawa , Kunio Kondo , Masaaki Igarashi
IPC分类号： B23K35/30 , C22C38/44 , B32B15/18 , B23K101/04 , F16L9/02 , F16L9/22
CPC分类号： B23K35/3086 , Y10T428/12965 , Y10T428/12979
摘要： Welded high-strength steel structure with excellent SSC and corrosion resistance in a wet carbon dioxide environment having a low H.sub.2 S concentration. A structure having a Vickers hardness of at most 350 and a joint tensile strength of at least 620 MPa and composed of a base metal comprising a martensitic stainless steel with a martensitic or tempered martensitic structure containing 0.001 to 0.05% C and 9 to 14% Cr and a weld metal comprising an austenitic-ferritic stainless steel having a duplex structure composed of austenite and 35 to 75% by volume of ferrite and containing 22 to 27% Cr,7 to 11% Ni and 1.5 to 5% Mo, and at most 0.03% C as an impurity.
摘要翻译： PCT No.PCT / JP96 / 02834 Sec。 371日期：1998年3月25日 102（e）1998年3月25日PCT PCT 1996年9月27日PCT公布。出版物WO97 / 12072 日期1997年04月3日在H2S浓度较低的湿二氧化碳环境中焊接高强度钢结构，具有优异的耐SSC和耐腐蚀性。维氏硬度为350以下，断裂强度为620MPa以上的结构，由含有马氏体或回火马氏体组织的马氏体系不锈钢构成的基体金属含有0.001〜0.05％的C和9〜14％的Cr 以及包含奥氏体 - 铁素体不锈钢的焊接金属，其具有由奥氏体和35〜75体积％的铁素体构成的双相组织，含有22〜27％的Cr，7〜11％的Ni和1.5〜5％的Mo，最多 0.03％C为杂质。

10. 发明授权

US08808473B2 Austenitic heat resistant alloy 有权
标题翻译：奥氏体耐热合金
公开(公告)号：US08808473B2
公开(公告)日：2014-08-19
申请号：US13472640
申请日：2012-05-16
申请人： Hiroyuki Hirata , Hirokazu Okada , Hiroyuki Semba , Kazuhiro Ogawa , Atsuro Iseda , Mitsuru Yoshizawa
发明人： Hiroyuki Hirata , Hirokazu Okada , Hiroyuki Semba , Kazuhiro Ogawa , Atsuro Iseda , Mitsuru Yoshizawa
IPC分类号： C22C19/05
CPC分类号： C22C19/055
摘要： An austenitic heat resistant alloy includes, by mass percent, C: 0.15% or less, Si: 2% or less, Mn: 3% or less, Ni: 40 to 60%, Co: 10.14 to 25%, Cr: 15% or more and less than 28%, either one or both of Mo: 12% or less and W: less than 0.05%, the total content thereof being 0.1 to 12%, Nd: 0.001 to 0.1%, B: 0.0005 to 0.006%, N: 0.03% or less, O: 0.03% or less, at least one selected from Al: 1.36% or less, Ti: 3% or less, and Nb: 3% or less, and the balance being Fe and impurities. The contents of P and S in the impurities are P: 0.03% or less and S: 0.01% or less. The alloy satisfies 1≦4×Al+2×Ti+Nb≦12 and P+0.2×Cr×B≦0.035, where an element in the Formulas represents the content by mass percent.
摘要翻译：奥氏体系耐热合金的质量百分比含有：C：0.15％以下，Si：2％以下，Mn：3％以下，Ni：40〜60％，Co：10.14〜25％，Cr：15％以上且小于28％，Mo：12％以下，W：小于0.05％，其总含量为0.1〜12％，Nd：0.001〜0.1％，B：0.0005〜0.006％，N：0.03％以下，O：0.03％以下，Al：1.36％以下，Ti：3％以下，Nb：3％以下中的至少一种，余量为Fe和杂质。杂质中P和S的含量为P：0.03％以下，S：0.01％以下。合金满足1＆nlE; 4×Al + 2×Ti + Nb＆nlE; 12和P + 0.2×Cr×B＆nlE; 0.035，式中的元素表示质量百分含量。

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