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11. 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％。

12. 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％）。

13. 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。

14. 发明申请

US20090158799A1 Metal Pipe and Manufacturing Method Thereof 审中-公开
标题翻译：金属管及其制造方法
公开(公告)号：US20090158799A1
公开(公告)日：2009-06-25
申请号：US11884551
申请日：2006-02-17
申请人： Yoshiaki Takeishi , Hisashi Amaya , Masakatsu Ueda , Hideki Takabe , Shigemitsu Kimura
发明人： Yoshiaki Takeishi , Hisashi Amaya , Masakatsu Ueda , Hideki Takabe , Shigemitsu Kimura
IPC分类号： B21B19/04 , F16L9/00
CPC分类号： B21C1/24 , B21C3/16 , B21C37/08 , B21C37/202 , B21D15/02 , F15D1/004 , F15D1/06 , F16L9/006 , F16L9/02 , F24T10/10 , F28F1/40 , Y02E10/12
摘要： A metal pipe according to the invention has a plurality of ridges that have different heights, extend in the axial direction, and are arranged in the circumferential direction at its inner circumferential surface. If the Reynolds number changes and the streak structure and the scale of a hairpin vortex change, the streak and the hairpin vortex each match any one of the ridges. Therefore, the fluid friction can be reduced in a wide Reynolds number range.
摘要翻译：根据本发明的金属管具有多个具有不同高度的脊，其沿轴向延伸，并且在其圆周方向上沿其内周面布置。如果雷诺数发生变化，并且发条涡旋的条纹结构和尺度发生变化，则条纹和发夹涡旋每个都匹配任何一个脊。因此，可以在宽的雷诺数范围内减少流体摩擦。

15. 发明授权

US08157930B2 Martensitic stainless steel 有权
标题翻译：马氏体不锈钢
公开(公告)号：US08157930B2
公开(公告)日：2012-04-17
申请号：US10798855
申请日：2004-03-12
申请人： Hisashi Amaya , Kunio Kondo , Masakatsu Ueda , Keiichi Nakamura , Takahiro Kushida , Kazuyo Kushida, legal representative
发明人： Hisashi Amaya , Kunio Kondo , Masakatsu Ueda , Keiichi Nakamura , Takahiro Kushida
IPC分类号： C22C38/22 , C21D8/02
CPC分类号： C22C38/44 , C22C38/001 , C22C38/002 , C22C38/04 , C22C38/42
摘要： A martensitic stainless steel comprising C: 0.01-0.10%, Si: 0.05-1.0%, Mn: 0.05-1.5%, P: not more than 0.03%, S: not more than 0.01%, Cr: 9-15%, Ni: 0.1-4.5%, Al: not more than 0.05% and N: not more than 0.1% in mass %, and further comprising at least one of Cu: 0.05-5% and Mo: 0.05-5%, the residual being Fe and impurities, is provided, wherein the contents of Cu and Mo satisfy the following formula (a) or (b), 0.2%≦Mo+Cu/4≦5% (a) 0.55%≦Mo+Cu/4≦5% (b) and wherein the hardness is 30-45 in HRC and the carbide amount in grain boundaries of the prior austenite is not more than 0.5 volume %. The marensitic stainless steel has excellent properties regarding the sulfide stress cracking resistance, the resistance to corrosive wear and the localized corrosion.
摘要翻译：一种马氏体不锈钢，其包含C：0.01〜0.10％，Si：0.05〜1.0％，Mn：0.05〜1.5％，P：0.03％以下，S：0.01％以下，Cr：9〜15％，Ni ：0.1-4.5％，Al：0.05％以下，N：0.1质量％以下，进一步含有Cu：0.05〜5％和Mo：0.05〜5％中的至少一种，残留物为Fe 提供Cu和Mo的含量满足下式（a）或（b）：0.2％＆lt; NlE; Mo + Cu / 4＆nlE; 5％（a）0.55％＆nlE; Mo + Cu / 4＆ 5％（b），硬度在HRC中为30-45，前奥氏体的晶界中的碳化物量不大于0.5体积％。锰矿不锈钢具有耐硫化物应力开裂性，耐腐蚀性和局部腐蚀性等优异性能。

16. 发明申请

US20060174979A1 Martensitic stainless steel 有权
标题翻译：马氏体不锈钢
公开(公告)号：US20060174979A1
公开(公告)日：2006-08-10
申请号：US11335676
申请日：2006-01-20
申请人： Kunio Kondo , Hisashi Amaya
发明人： Kunio Kondo , Hisashi Amaya
IPC分类号： C22C38/22
CPC分类号： C22C38/42 , C22C38/02 , C22C38/04 , C22C38/44
摘要： A martensitic stainless steel having a resistance to sulfide stress corrosion cracking superior to Super 13 Cr steel and having a strength and corrosion resistance comparable to dual phase stainless steels has a chemical composition consisting essentially of, in mass %, C: 0.001-0.1%, Si: 0.05-1.0%, Mn: 0.05-2.0%, P: at most 0.025%, S: at most 0.010%, Cr: 11-18%, Ni: 1.5-10%, sol. Al: 0.001-0.1%, N: at most 0.1%, O: at most 0.01%, Cu: 0-5%, solid solution Mo: 3.5-7%, the composition satisfying the following Equation (1), optionally at least one element selected from at least one of the following Groups A-C, and a remainder of Fe and impurities and undissolved Mo, if undissolved Mo is present. Ni-bal.=30(C+N)+0.5(Mn+Cu)+Ni+8.2−1.1(Cr+Mo+1.5Si)≧−4.5 Equation (1) Group A—W: 0.2-5% Group B—V: 0.001-0.50%, Nb: 0.001-0.50%, Ti: 0.001-0.50%, and Zr: 0.001-0.50% Group C—Ca: 0.0005-0.05%, Mg: 0.0005-0.05%, REM: 0.0005-0.05%, and B: 0.0001-0.01%
摘要翻译：具有优于超级13Cr钢的具有耐硫化应力腐蚀开裂性且具有与双相不锈钢相当的强度和耐腐蚀性的马氏体不锈钢的化学成分基本上以质量％计含有C：0.001-0.1％ Si：0.05〜1.0％，Mn：0.05〜2.0％，P：0.025％以下，S：0.010％以下，Cr：11〜18％，Ni：1.5〜10％ Al：0.001-0.1％，N：0.1％以下，O：0.01％以下，Cu：0-5％，固溶Mo：3.5〜7％，满足下述式（1）的组成，选自以下组AC中的至少一个的元素，以及余量的Fe和杂质以及未溶解的Mo，如果不溶解的Mo存在。 Ni-bal = 30（C + N）+0.5（Mn + Cu）+ Ni + 8.2-1.1（Cr + Mo），在线式公式描述=“In-line formula”end =“lead” 组合AW：0.2-5％组BV：0.001-0.50％，Nb（0.51Si））= - 4.5方程式（1）<？in-line-formula description =“In-line Formulas”end =“tail” ：0.001-0.50％，Ti：0.001-0.50％，Zr：0.001-0.50％C-Ca：0.0005-0.05％，Mg：0.0005-0.05％，REM：0.0005-0.05％，B：0.0001-0.01 ％

17. 发明授权

US09090957B2 Martensitic stainless steel oil country tubular good 有权
标题翻译：马氏体不锈钢油管状管状好
公开(公告)号：US09090957B2
公开(公告)日：2015-07-28
申请号：US11792524
申请日：2004-12-07
申请人： Hisashi Amaya , Kunio Kondo , Masakatsu Ueda
发明人： Hisashi Amaya , Kunio Kondo , Masakatsu Ueda
IPC分类号： C22C38/18 , C22C38/00 , C21D8/10 , C21D9/08 , C22C38/02 , C22C38/20 , C22C38/22 , C22C38/38 , C22C38/58
CPC分类号： C22C38/00 , C21D8/10 , C21D8/105 , C21D9/08 , C21D2211/008 , C22C38/001 , C22C38/02 , C22C38/18 , C22C38/20 , C22C38/22 , C22C38/38 , C22C38/58
摘要： A martensitic stainless steel oil country tubular good contains, by mass, 0.005% to 0.1% C, 0.05% to 1% Si, 1.5% to 5% Mn, at most 0.05% P, at most 0.01% S, 9% to 13% Cr, at most 0.5% Ni, at most 2% Mo, at most 2% Cu, 0.001% to 0.1% Al, and 0.001% to 0.1% N, with the balance being Fe and impurities, and the pipe has a Cr-depleted region under the surface. The martensitic stainless steel oil country tubular good according to the present invention does not have a passive film on the surface and corrodes wholly at low speed. In addition, the Ni content is reduced, which allows uneven corrosion to be prevented. Therefore, SCC can be prevented from being generated in spite of the presence of a Cr-depleted region.
摘要翻译：马氏体不锈钢油管状良好的质量含有0.005〜0.1％的C，0.05〜1％的Si，1.5〜5％的Mn，至多0.05％的P，最多0.01％的S，9〜13 ％Cr，最多0.5％Ni，至多2％Mo，最多2％Cu，0.001％至0.1％Al和0.001％至0.1％N，余量为Fe和杂质，管道为Cr - 表面下方的剥离区域。根据本发明的马氏体不锈钢油管状管状体在表面上不具有钝化膜并且完全以低速腐蚀。另外，Ni含量降低，能够防止不均匀的腐蚀。因此，尽管存在Cr-贫化区域，也可以防止产生SCC。

18. 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。

19. 发明授权

US6159311A Martensitic stainless steel pipe and method for manufacturing the same 有权
标题翻译：马氏体不锈钢管及其制造方法
公开(公告)号：US6159311A
公开(公告)日：2000-12-12
申请号：US479233
申请日：2000-01-07
申请人： Hisashi Amaya , Masakatsu Ueda , Kunio Kondo
发明人： Hisashi Amaya , Masakatsu Ueda , Kunio Kondo
IPC分类号： C21D6/00 , C21D8/10 , C21D9/08 , C22C38/00 , C22C38/40 , C22C38/58 , C22C38/38 , C21D7/00 , C22C38/18
CPC分类号： C21D8/105 , C21D6/002 , C21D9/08 , C22C38/40 , C22C38/58 , Y10S148/909
摘要： A martensitic stainless steel pipe comprises, on the weight basis, C: 0.005 to 0.2%, Si: 1% or below, Mn: 0.1 to 5%, Cr: 7 to 15%, and Ni: 0 to 8%, wherein a wall thickness t (mm) and contents of C and Cr satisfy the relationship represented by the following equation (1).t(mm).ltoreq.exp{5.21-18.1C(%)-0.0407Cr(%)} (1)The steel pipe can be made by employing water quenching as a quenching method.
摘要翻译：马氏体系不锈钢管的重量为C：0.005〜0.2％，Si：1％以下，Mn：0.1〜5％，Cr：7〜15％，Ni：0〜8％壁厚t（mm），C和Cr的含量满足下述式（1）所示的关系。 t（mm）

20. 发明授权

US07767039B2 Martensitic stainless steel 有权
标题翻译：马氏体不锈钢
公开(公告)号：US07767039B2
公开(公告)日：2010-08-03
申请号：US11335676
申请日：2006-01-20
申请人： Kunio Kondo , Hisashi Amaya
发明人： Kunio Kondo , Hisashi Amaya
IPC分类号： C22C38/18
CPC分类号： C22C38/42 , C22C38/02 , C22C38/04 , C22C38/44
摘要： A martensitic stainless steel having a resistance to sulfide stress corrosion cracking superior to Super 13 Cr steel and having a strength and corrosion resistance comparable to dual phase stainless steels has a chemical composition consisting essentially of, in mass %, C: 0.001-0.1%, Si: 0.05-1.0%, Mn: 0.05-2.0%, P: at most 0.025%, S: at most 0.010%, Cr: 11-18%, Ni: 1.5-10%, sol. Al: 0.001-0.1%, N: at most 0.1%, O: at most 0.01%, Cu: 0-5%, solid solution Mo: 3.5-7%, the composition satisfying the following Equation (1), optionally at least one element selected from at least one of the following Groups A-C, and a remainder of Fe and impurities and undissolved Mo, if undissolved Mo is present. Ni-bal.=30(C+N)+0.5(Mn+Cu)+Ni+8.2−1.1(Cr+Mo+1.5Si)≧−4.5 Equation (1) Group A—W: 0.2-5% Group B—V: 0.001-0.50%, Nb: 0.001-0.50%, Ti: 0.001-0.50%, and Zr: 0.001-0.50% Group C—Ca: 0.0005-0.05%, Mg: 0.0005-0.05%, REM: 0.0005-0.05%, and B: 0.0001-0.01%.
摘要翻译：具有优于超级13Cr钢的具有耐硫化应力腐蚀开裂性且具有与双相不锈钢相当的强度和耐腐蚀性的马氏体不锈钢的化学成分基本上以质量％计含有C：0.001-0.1％ Si：0.05〜1.0％，Mn：0.05〜2.0％，P：0.025％以下，S：0.010％以下，Cr：11〜18％，Ni：1.5〜10％ Al：0.001-0.1％，N：0.1％以下，O：0.01％以下，Cu：0-5％，固溶Mo：3.5〜7％，满足下述式（1）的组成，选自以下组AC中的至少一个的元素，以及余量的Fe和杂质以及未溶解的Mo，如果不溶解的Mo存在。 Ni-bal = 30（C + N）+0.5（Mn + Cu）+ Ni + 8.2-1.1（Cr + Mo + 1.5Si）≥-4.5等式（1）组A-W：0.2-5％ -V：0.001-0.50％，Nb：0.001-0.50％，Ti：0.001-0.50％，Zr：0.001-0.50％C-Ca：0.0005-0.05％，Mg：0.0005-0.05％，REM： 0.05％，B：0.0001-0.01％。

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