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1.发明申请公开(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。
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2.发明授权公开(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
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。
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公开(公告)号：US20100170320A1
公开(公告)日：2010-07-08
申请号：US12650585
申请日：2009-12-31
IPC分类号： B21C37/06
摘要： A method for manufacturing a high alloy pipe comprises hot working, a high alloy material pipe having controlled amounts of C, Si, Mn, P, S, Ni, Cr, Mo, Cu, Al, N, O, and optionally Ca, Mg, and rare earth elements, with the balance Fe. The pipe composition satisfies the formula N×O≦0.001. The pipe is subjected to cold working to form the high alloy pipe, wherein the final cold working process is performed under the condition that a working ratio Rd in the reduction of area satisfies 15≦Rd(%)≦370×(C+N), where N, O and C are the contents (by mass percent) of the respective elements, and Rd is the working ratio (%) in the reduction of area. The pipe has an excellent ductility and an excellent corrosion resistance when cold working is performed to obtain a high strength after pipe-making.
摘要翻译： 一种制造高合金管的方法包括热加工，具有受控量的C，Si，Mn，P，S，Ni，Cr，Mo，Cu，Al，N，O以及任选的Ca，Mg的高合金材料管 ，稀土元素，余量为Fe。 管道组成满足公式N×O＆nlE; 0.001。 管道进行冷加工以形成高合金管，其中在减少面积的加工率Rd满足15＆lt; nlE的条件下进行最终冷加工工艺; Rd（％）＆nlE; 370×（C + N ），其中N，O和C是各元素的含量（按质量百分比），Rd是面积减少的加工率（％）。 在进行冷加工以获得制管后的高强度时，该管具有优良的延展性和优异的耐腐蚀性。
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公开(公告)号：US08701455B2
公开(公告)日：2014-04-22
申请号：US12650585
申请日：2009-12-31
IPC分类号： B21B19/04
摘要： A method for manufacturing a high alloy pipe comprises hot working, a high alloy material pipe having controlled amounts of C, Si, Mn, P, S, Ni, Cr, Mo, Cu, Al, N, O, and optionally Ca, Mg, and rare earth elements, with the balance Fe. The pipe composition satisfies the formula N×O≦0.001. The pipe is subjected to cold working to form the high alloy pipe, wherein the final cold working process is performed under the condition that a working ratio Rd in the reduction of area satisfies 15≦Rd (%)≦370×(C+N), where N, O and C are the contents (by mass percent) of the respective elements, and Rd is the working ratio (%) in the reduction of area. The pipe has an excellent ductility and an excellent corrosion resistance when cold working is performed to obtain a high strength after pipe-making.
摘要翻译： 一种制造高合金管的方法包括热加工，具有受控量的C，Si，Mn，P，S，Ni，Cr，Mo，Cu，Al，N，O以及任选的Ca，Mg的高合金材料管 ，稀土元素，余量为Fe。 管道组成满足公式N×O＆nlE; 0.001。 管道进行冷加工以形成高合金管，其中在减少面积的加工率Rd满足15＆lt; nlE的条件下进行最终冷加工工艺; Rd（％）＆nlE; 370×（C + N ），其中N，O和C是各元素的含量（按质量百分比），Rd是面积减少的加工率（％）。 在进行冷加工以获得制管后的高强度时，该管具有优良的延展性和优异的耐腐蚀性。
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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
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。
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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
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 ％
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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。
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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
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）
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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
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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公开(公告)号：US20050034790A1
公开(公告)日：2005-02-17
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
发明人： Hisashi Amaya , Kunio Kondo , Masakatsu Ueda , Keiichi Nakamura , Takahiro Kushida , Kazuyo Kushida
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 和杂质，其中Cu和Mo的含量满足下式（a）或（b），0.2％<= Mo + Cu / 4 <= 5％（a）0.55％<= Mo + Cu / 4 <= 5％（b），其中HRC中的硬度为30-45，并且原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。
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