公开(公告)号：US5900076A

公开(公告)日：1999-05-04

申请号：US979625

申请日：1997-11-28

申请人： Tohru Hayashi ,  Keniti Amano ,  Mitsuhiro Okatsu ,  Kenji Oi ,  Fumimaru Kawabata ,  Tomoya Koseki ,  Noritsugu Itakura ,  Hiroki Ota

发明人： Tohru Hayashi ,  Keniti Amano ,  Mitsuhiro Okatsu ,  Kenji Oi ,  Fumimaru Kawabata ,  Tomoya Koseki ,  Noritsugu Itakura ,  Hiroki Ota

IPC分类号： C21D6/02 ,  C21D8/02 ,  C22C38/04 ,  C22C38/12 ,  C21D8/00

CPC分类号： C21D6/02 ,  C21D8/02 ,  C21D8/0226 ,  C22C38/04 ,  C22C38/12 ,  C21D2211/002 ,  C21D8/0263

摘要： This invention provides bainite steel materials having a less scattering of properties in a thickness direction or between steel materials by using a chemical composition of C: not less than 0.001 wt % but less than 0.030 wt %, Si: not more than 0.60 wt %, Mn: 1.00-3.00 wt %, Nb: 0.005-0.20 wt %, B: 0.0003-0.0050 wt % and Al: not more than 0.100 wt % and rendering not less than 90% of the material into a bainite texture in steel materials such as thick steel plates, steel sheets, section steels, rod steels and the like.

摘要翻译： 本发明提供一种贝氏体钢材料，其厚度方向上或钢材之间的性能散射小，通过使用化学组成为C：不小于0.001重量％但小于0.030重量％，Si：不大于0.60重量％ Mn：1.00-3.00重量％，Nb：0.005-0.20重量％，B：0.0003-0.0050重​​量％，Al：不大于0.100重量％，并且使不少于90重量％的材料成为贝氏体组织， 作为厚钢板，钢板，截面钢，棒钢等。

公开(公告)号：US5766381A

公开(公告)日：1998-06-16

申请号：US646373

申请日：1996-05-15

申请人： Tohru Hayashi ,  Keniti Amano ,  Mitsuhiro Okatsu ,  Kenji Oi ,  Fumimaru Kawabata ,  Tomoya Koseki ,  Noritsugu Itakura ,  Hiroki Ota

发明人： Tohru Hayashi ,  Keniti Amano ,  Mitsuhiro Okatsu ,  Kenji Oi ,  Fumimaru Kawabata ,  Tomoya Koseki ,  Noritsugu Itakura ,  Hiroki Ota

IPC分类号： C21D6/02 ,  C21D8/02 ,  C22C38/04 ,  C22C38/12 ,  C21D8/00

CPC分类号： C21D6/02 ,  C21D8/02 ,  C21D8/0226 ,  C22C38/04 ,  C22C38/12 ,  C21D2211/002 ,  C21D8/0263

摘要： This invention provides bainite steel materials having a less scattering of properties in a thickness direction or between steel materials by using a chemical composition of C: not less than 0.001 wt % but less than 0.030 wt %, Si: not more than 0.60 wt %, Mn: 1.00-3.00 wt %, Nb: 0.005-0.20 wt %, B: 0.0003-0.0050 wt % and Al: not more than 0.100 wt % and rendering not less than 90% of the material into a bainite texture in steel materials such as thick steel plates, steel sheets, section steels, rod steels and the like.

摘要翻译： PCT No.PCT / JP95 / 01871 Sec。 371日期：1996年5月15日 102（e）日期1996年5月15日PCT提交1995年9月20日PCT公布。 出版物WO96 / 09419 日本特开1996年3月28日本发明提供了通过使用C：不小于0.001重量％但小于0.030重量％的化学组成，在厚度方向或钢材之间具有较小散射特性的贝氏体钢材料，Si：不更多 比例为0.60重量％，Mn：1.00-3.00重量％，Nb：0.005-0.20重量％，B：0.0003-0.0050重​​量％，Al：不大于0.100重量％，并使不少于90重量％的贝氏体材料 粗钢板，钢板，截面钢，棒钢等钢材的质地。

公开(公告)号：US06299710B1

公开(公告)日：2001-10-09

申请号：US09272572

申请日：1999-03-19

申请人： Noritsugu Itakura ,  Mitsuhiro Okatsu ,  Fumimaru Kawabata ,  Keniti Amano

发明人： Noritsugu Itakura ,  Mitsuhiro Okatsu ,  Fumimaru Kawabata ,  Keniti Amano

IPC分类号： C21D800

CPC分类号： C21D8/0226 ,  C21D8/0263 ,  C21D2211/002 ,  C22C38/04 ,  C22C38/12

摘要： A high-strength and high-toughness steel product having at least about 0.001% and less than about 0.030% by weight C, not more than about 0.60% by weight Si, from about 0.8% to 3.0% by weight Mn, from about 0.005 to 0.20% by weight Nb, from about 0.0003 to 0.0050% by weight B, and not more than about 0.005% by weight AL wherein at least 90% of the product has a bainite structure. A method of making this steel product is subject to less stringent production controls because of the nature of the composition.

摘要翻译： 具有至少约0.001％且小于约0.030％（重量）C，不超过约0.60％（重量）Si，约0.8％至3.0％（重量）的Mn，约0.005 至0.20重量％的Nb，约0.0003至0.0050重​​量％的B和不超过约0.005重量％的AL，其中至少90％的产物具有贝氏体组织。 由于组合物的性质，制造该钢产品的方法受到较不严格的生产控制。

公开(公告)号：US06521057B1

公开(公告)日：2003-02-18

申请号：US09929057

申请日：2001-08-15

申请人： Noritsugu Itakura ,  Mitsuhiro Okatsu ,  Fumimaru Kawabata ,  Keniti Amano

发明人： Noritsugu Itakura ,  Mitsuhiro Okatsu ,  Fumimaru Kawabata ,  Keniti Amano

IPC分类号： C22C3812

CPC分类号： C21D8/0226 ,  C21D8/0263 ,  C21D2211/002 ,  C22C38/04 ,  C22C38/12

摘要： A high-strength and high-toughness steel product having at least about 0.001% and less than about 0.030% by weight C, not more than about 0.60% by weight Si, from about 0.8 to 3.0% by weight Mn, from about 0.005 to 0.20% by weight Nb, from about 0.0003 to 0.0050% by weight B, and not more than about 0.005% by weight Al, wherein at least 90% of the product has a bainite structure. A method of making this steel product is subject to less stringent production controls because of the nature of the composition.

摘要翻译： 一种高强度和高韧性的钢产品，其具有至少约0.001％且小于约0.030％（重量）的C，不超过约0.60％（重量）的Si，约0.8至3.0％（重量）的Mn，约0.005至 0.20重量％的Nb，约0.0003〜0.0050重​​量％的B，不超过约0.005重量％的Al，其中至少90％的产物具有贝氏体结构。 由于组合物的性质，制造该钢产品的方法受到较不严格的生产控制。

公开(公告)号：US5989366A

公开(公告)日：1999-11-23

申请号：US816418

申请日：1997-03-14

申请人： Tohru Hayashi ,  Mitsuhiro Okatsu ,  Fumimaru Kawabata ,  Keniti Amano

发明人： Tohru Hayashi ,  Mitsuhiro Okatsu ,  Fumimaru Kawabata ,  Keniti Amano

IPC分类号： C21D8/00 ,  C21D8/02 ,  C22C38/00 ,  C22C38/04 ,  C22C38/14 ,  C22C38/58

CPC分类号： C22C38/04 ,  C21D8/0226

摘要： A method of manufacturing a thick steel product of high strength and high toughness having excellent weldability with minimal variation of material properties, comprises heating a steel raw material to the temperature of Ac.sub.3 to 1350.degree. C., hot rolling and then cooling at the cooling rate of 10.degree. C./sec. or less. The steel raw material has the following composition:C: 0.001-0.25 wt %;Mn: 1.0-3.0 wt %;Ti: 0.005-0.20 wt %;Nb: 0.005-0.20 wt %;B: 0.0003-0.0050 wt %; andAl: 0.01-0.100 wt %balance substantially Fe and incidental impurities. The composition has a transformation start temperature (Bs) of 670.degree. C. or less. Since the steel product obtained by the method has no variation in physical properties regardless of variation in cooling rate, it is possible to supply steel products of high strength and high toughness which have uniform microstructure and properties along their thickness direction and are excellent in weldability.

摘要翻译： 一种制造具有优异的焊接性和优异的材料特性的高强度和高韧性的粗钢产品的方法包括将钢原料加热至Ac 3至1350℃的温度，然后以冷却速度冷却，然后冷却 为10℃/秒。 或更少。 钢原料具有以下组成：C：0.001-0.25重量％; Mn：1.0-3.0重量％ Ti：0.005〜0.20重量％ Nb：0.005-0.20重量％ B：0.0003-0.0050重​​量％ 和Al：0.01-0.100重量％，基本上为Fe和附带的杂质。 组合物的转变开始温度（Bs）为670℃以下。 由于通过该方法获得的钢产品与冷却速度的变化无关，物理性质没有变化，因此可以提供具有均匀的组织和性能的厚度方向的高强度，高韧性的钢产品，并且焊接性优异。

公开(公告)号：US08124247B2

公开(公告)日：2012-02-28

申请号：US12593455

申请日：2008-03-19

申请人： Naoya Hayakawa ,  Fumimaru Kawabata ,  Shuichi Sakaguchi ,  Mitsuhiro Okatsu ,  Makoto Ota ,  Shigeki Nishiyama ,  Kaoru Nagatani ,  Keito Ishizaki

发明人： Naoya Hayakawa ,  Fumimaru Kawabata ,  Shuichi Sakaguchi ,  Mitsuhiro Okatsu ,  Makoto Ota ,  Shigeki Nishiyama ,  Kaoru Nagatani ,  Keito Ishizaki

IPC分类号： B32B15/04 ,  B32B15/18 ,  B23K9/18 ,  B23K25/00

CPC分类号： C22C38/02 ,  B23K35/0266 ,  B23K35/0272 ,  B23K35/3066 ,  C22C38/04 ,  C22C38/08 ,  C22C38/12 ,  F16L13/02 ,  Y10T428/12292 ,  Y10T428/12965 ,  Y10T428/12972

摘要： A high-strength steel pipe has a tensile strength of 800 MPa or more and includes a weld metal having high cold-cracking resistance and high low-temperature toughness, wherein the weld metal contains C: 0.04% to 0.09% by mass, Si: 0.32% to 0.50% by mass, Mn: 1.4% to 2.0% by mass, Cu: less than 0.5% by mass, Ni: more than 0.9% by mass but not more than 4.2% by mass, Mo: 0.4% to 1.5% by mass, Cr: less than 0.5% by mass, V: less than 0.2% by mass, and the remainder of Fe and incidental impurities, and CS values calculated from the weld metal components using the equation CS=5.1+1.4[Mo]−[Ni]−[Mn]−36.3[C] are equal to zero or more at both an internal surface and an external surface.

摘要翻译： 高强度钢管的拉伸强度为800MPa以上，并且具有耐寒裂性高，低温韧性高的焊接金属，其中，焊接金属含有C：0.04〜0.09质量％，Si： 0.32〜0.50质量％，Mn：1.4〜2.0质量％，Cu：小于0.5质量％，Ni：0.9质量％以上且4.2质量％以下，Mo：0.4〜1.5 质量％：Cr：小于0.5质量％，V：小于0.2质量％，剩余的Fe和附带的杂质，以及由焊接金属成分使用CS = 5.1 + 1.4 [Mo ] - [Ni] - [Mn] -36.3 [C]在内表面和外表面均等于零或更多。

公开(公告)号：US20100119861A1

公开(公告)日：2010-05-13

申请号：US12593455

申请日：2008-03-19

申请人： Naoya Hayakawa ,  Fumimaru Kawabata ,  Shuichi Sakaguchi ,  Mitsuhiro Okatsu ,  Makoto Ota ,  Shigeki Nishiyama ,  Kaoru Nagatani ,  Keito Ishizaki

发明人： Naoya Hayakawa ,  Fumimaru Kawabata ,  Shuichi Sakaguchi ,  Mitsuhiro Okatsu ,  Makoto Ota ,  Shigeki Nishiyama ,  Kaoru Nagatani ,  Keito Ishizaki

IPC分类号： B23K9/18 ,  B21C1/00

CPC分类号： C22C38/02 ,  B23K35/0266 ,  B23K35/0272 ,  B23K35/3066 ,  C22C38/04 ,  C22C38/08 ,  C22C38/12 ,  F16L13/02 ,  Y10T428/12292 ,  Y10T428/12965 ,  Y10T428/12972

摘要： A high-strength steel pipe having a tensile strength of 800 MPa or more that includes a weld metal having high cold-cracking resistance and high low-temperature toughness is provided. The high-strength steel pipe is a high-strength welded steel pipe in which the welded steel pipe is manufactured by double one layer submerged arc welding performed on an internal surface and an external surface of a base metal, both the base metal of the welded steel pipe and a weld metal have a tensile strength of 800 MPa or more, the weld metal contains C: 0.04% to 0.09% by mass, Si: 0.32% to 0.50% by mass, Mn: 1.4% to 2.0% by mass, Cu: less than 0.5% by mass, Ni: more than 0.9% by mass but not more than 4.2% by mass, Mo: 0.4% to 1.5% by mass, Cr: less than 0.5% by mass, V: less than 0.2% by mass, and the remainder of Fe and incidental impurities, and CS values calculated from the weld metal components using the equation CS=5.1+1.4[Mo]−[Ni]−0.6[Mn]−36.3[C] are equal to zero or more at both the internal surface and the external surface.

摘要翻译： 提供一种抗拉强度为800MPa以上的高强度钢管，其包括耐寒裂纹性高，低温韧性高的焊接金属。 高强度钢管是一种高强度焊接钢管，其中焊接钢管是通过在基体金属的内表面和外表面上进行的双层埋弧焊而制造的，焊接的钢管 钢管和焊接金属的拉伸强度为800MPa以上，焊接金属含有C：0.04〜0.09质量％，Si：0.32〜0.50质量％，Mn：1.4〜2.0质量％ Cu：小于0.5质量％，Ni：大于0.9质量％且不超过4.2质量％，Mo：0.4〜1.5质量％，Cr：小于0.5质量％，V：小于0.2 质量％，剩余的Fe和杂质以及使用CS = 5.1 + 1.4 [Mo] - [Ni] -0.6 [Mn] -36.3 [C]的焊接金属成分计算出的CS值等于 在内表面和外表面上都为零或更多。

公开(公告)号：US20120018028A1

公开(公告)日：2012-01-26

申请号：US13147992

申请日：2010-02-05

申请人： Junji Shimamura ,  Nobuyuki Ishikawa ,  Mitsuhiro Okatsu ,  Nobuo Shikanai

发明人： Junji Shimamura ,  Nobuyuki Ishikawa ,  Mitsuhiro Okatsu ,  Nobuo Shikanai

IPC分类号： F16L9/14 ,  C21D8/10 ,  C21D8/02

CPC分类号： B23K9/18 ,  B21C37/08 ,  B23K9/0253 ,  B23K9/23 ,  B23K35/30 ,  B23K2101/06 ,  B23K2103/04 ,  C21D6/005 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0247 ,  C21D8/10 ,  C21D8/105 ,  C21D9/08 ,  C21D9/50 ,  C21D2211/002 ,  C21D2211/008 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  Y10T428/12951 ,  Y10T428/12958 ,  Y10T428/12965 ,  Y10T428/12972

摘要： An APIX100-grade high strength steel pipe includes a base material containing, in mass percentage, C: more than 0.03% and 0.08% or less, Si: 0.01% to 0.5%, Mn: 1.5% to 3.0%, P: 0.015% or less, S: 0.005% or less, Al: 0.01% to 0.08%, Nb: 0.005% to 0.025%, Ti: 0.005% to 0.025%, N: 0.001% to 0.010%, O: 0.005% or less, and B: 0.0003% to 0.0020%, further contains one or more of Cu, Ni, Cr, Mo, and V, satisfies 0.19≦Pcm≦0.25, the balance being Fe and unavoidable impurities, and has a TS of 760 to 930 MPa, a uniform elongation of 5% or more, and a YR of 85% or less; the seam weld metal has a specific composition.

摘要翻译： APIX100级高强度钢管包括以质量％计含有C：大于0.03％和0.08％或更少的Si：0.01％至0.5％，Mn：1.5％至3.0％，P：0.015％ 以下，S：0.005％以下，Al：0.01〜0.08％，Nb：0.005〜0.025％，Ti：0.005〜0.025％，N：0.001〜0.010％，O：0.005％以下， B：0.0003〜0.0020％，进一步含有Cu，Ni，Cr，Mo，V中的一种以上，满足0.19＆nlE; Pcm＆nlE; 0.25，余量为Fe和不可避免的杂质，TS为760〜930MPa ，均匀伸长率为5％以上，YR为85％以下; 缝焊金属具有特定的组成。

公开(公告)号：US20090301613A1

公开(公告)日：2009-12-10

申请号：US12418767

申请日：2009-04-06

申请人： Jayoung Koo ,  Swarupa Soma Bangaru ,  Hyun-Woo Jin ,  Adnan Ozekcin ,  Raghavan Ayer ,  Douglas P. Fairchild ,  Danny L. Beeson ,  Douglas S. Hoyt ,  James B. LeBleu, JR. ,  Shigeru Endo ,  Mitsuhiro Okatsu ,  Shinichi Kakihara ,  Moriyasu Nagae

发明人： Jayoung Koo ,  Swarupa Soma Bangaru ,  Hyun-Woo Jin ,  Adnan Ozekcin ,  Raghavan Ayer ,  Douglas P. Fairchild ,  Danny L. Beeson ,  Douglas S. Hoyt ,  James B. LeBleu, JR. ,  Shigeru Endo ,  Mitsuhiro Okatsu ,  Shinichi Kakihara ,  Moriyasu Nagae

IPC分类号： C21D9/08 ,  C21D8/02 ,  C21D1/70 ,  C22C38/00 ,  C22C38/08

CPC分类号： C22C38/02 ,  C21D6/005 ,  C21D8/0226 ,  C21D8/0263 ,  C21D9/14 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/04 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16

摘要： A steel composition and method from making a dual phase steel therefrom. The dual phase steel may have carbon of about 0.05% by weight to about 0.12 wt %; niobium of about 0.005 wt % to about 0.03 wt %; titanium of about 0.005 wt % to about 0.02 wt %; nitrogen of about 0.001 wt % to about 0.01 wt %; silicon of about 0.01 wt % to about 0.5 wt %; manganese of about 0.5 wt % to about 2.0 wt %; and a total of molybdenum, chromium, vanadium and copper less than about 0.15 wt %. The steel may have a first phase consisting of ferrite and a second phase having one or more of carbide, pearlite, martensite, lower bainite, granular bainite, upper bainite, and degenerate upper bainite. A solute carbon content in the first phase may be about 0.01 wt % or less.

摘要翻译： 从其制造双相钢的钢组合物和方法。 双相钢可以具有约0.05重量％至约0.12重量％的碳; 约0.005重量％至约0.03重量％的铌; 约0.005重量％至约0.02重量％的钛; 约0.001重量％至约0.01重量％的氮; 约0.01重量％至约0.5重量％的硅; 约0.5重量％至约2.0重量％的锰; 以及少于约0.15重量％的钼，铬，钒和铜的总和。 钢可以具有由铁素体构成的第一相和具有碳化物，珠光体，马氏体，下贝氏体，粒状贝氏体，上贝氏体和退化的上贝氏体中的一种或多种的第二相。 第一相中的溶质碳含量可以为约0.01重量％以下。

公开(公告)号：US09896748B2

公开(公告)日：2018-02-20

申请号：US13361774

申请日：2012-01-30

申请人： Jayoung Koo ,  Narasimha-Rao V. Bangaru ,  Swarupa Soma Bangaru ,  Hyun-Woo Jin ,  Adnan Ozekcin ,  Raghavan Ayer ,  Douglas P. Fairchild ,  Danny L. Beeson ,  Douglas S. Hoyt ,  James B. LeBleu, Jr. ,  Shigeru Endo ,  Mitsuhiro Okatsu ,  Shinichi Kakihara ,  Moriyasu Nagae

发明人： Jayoung Koo ,  Narasimha-Rao V. Bangaru ,  Hyun-Woo Jin ,  Adnan Ozekcin ,  Raghavan Ayer ,  Douglas P. Fairchild ,  Danny L. Beeson ,  Douglas S. Hoyt ,  James B. LeBleu, Jr. ,  Shigeru Endo ,  Mitsuhiro Okatsu ,  Shinichi Kakihara ,  Moriyasu Nagae

IPC分类号： C21D8/10 ,  C22C38/02 ,  C21D6/00 ,  C21D8/02 ,  C21D9/14 ,  C22C38/04 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16

CPC分类号： C22C38/02 ,  C21D6/005 ,  C21D8/0226 ,  C21D8/0263 ,  C21D9/14 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/04 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16

摘要： A steel composition and method from making a dual phase steel therefrom. The dual phase steel may have carbon of about 0.05% by weight to about 0.12 wt %; niobium of about 0.005 wt % to about 0.03 wt %; titanium of about 0.005 wt % to about 0.02 wt %; nitrogen of about 0.001 wt % to about 0.01 wt %; silicon of about 0.01 wt % to about 0.5 wt %; manganese of about 0.5 wt % to about 2.0 wt %; and a total of molybdenum, chromium, vanadium and copper less than about 0.15 wt %. The steel may have a first phase consisting of ferrite and a second phase having one or more of carbide, pearlite, martensite, lower bainite, granular bainite, upper bainite, and degenerate upper bainite. A solute carbon content in the first phase may be about 0.01 wt % or less.