专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2007031769A Seamless steel tube and method for producing the same 有权
标题翻译：无缝钢管及其制造方法
公开(公告)号：JP2007031769A
公开(公告)日：2007-02-08
申请号：JP2005216233
申请日：2005-07-26
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： ARAI YUJI , KONDO KUNIO , HISAMUNE NOBUYUKI
IPC分类号： C22C38/00 , C21D8/10 , C21D9/08 , C22C38/58
CPC分类号： C21D8/10 , C21D9/08 , C22C38/001 , C22C38/002 , C22C38/44 , C22C38/50 , C22C38/52
摘要： PROBLEM TO BE SOLVED: To provide a seamless steel tube provided with high strength, stable toughness and excellent corrosion resistance and suitable for submarine flow-line, and to provide a method for producing the seamless steel tube.
SOLUTION: The seamless steel tube as quenching, is composed, by mass%, of 0.03-0.08% C, 0.3-2.5% Mn, 0.001-0.10% Al, 0.02-1.0% Cr, 0.02-1.0% Ni, 0.02-0.8% Mo, 0.004-0.010% Ti, 0.002-0.008% N, 0.0005-0.005% Ca, 0-0.08%V, 0-1.0% Cu and the balance Fe with impurities, in which ≤0.25% Si, ≤0.05% P, ≤0.005% S,
摘要翻译：要解决的问题：提供一种具有高强度，稳定的韧性和优异的耐腐蚀性并适用于海底流线的无缝钢管，并提供一种无缝钢管的制造方法。解决方案：淬火时的无缝钢管以质量％计含有0.03-0.08％C，0.3-2.5％Mn，0.001-0.10％Al，0.02-1.0％Cr，0.02-1.0％Ni， 0.02-0.8％Mo，0.004-0.010％Ti，0.002-0.008％N，0.0005-0.005％Ca，0-0.08％V，0-1.0％Cu，余量为Fe与杂质，其中≤0.25％Si，≤ 0.05％P，≤0.005％S，<0.005％Nb和<0.0003％B，具有≤20体积％多边形铁素体的结构，≤10体积％的马氏体和残余奥氏体的混合结构和余量贝氏体; 通过回火上述钢管获得高强度的无缝钢管。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2006274350A Thick seamless steel pipe for line pipe and its production method 有权
标题翻译：用于线管的厚度无缝钢管及其生产方法
公开(公告)号：JP2006274350A
公开(公告)日：2006-10-12
申请号：JP2005095240
申请日：2005-03-29
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： KONDO KUNIO , ARAI YUJI , HISAMUNE NOBUYUKI
IPC分类号： C22C38/00 , B21B23/00 , C21D8/10 , C21D9/08 , C22C38/58
CPC分类号： C22C38/00 , B21B19/04 , B21B23/00 , C21D8/10 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/50 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a thick seamless steel pipe for a line pipe having high strength and excellent toughness, and to provide a method for producing the same.
SOLUTION: The thick seamless steel pipe for a line pipe having high strength and satisfactory toughness has a composition comprising 0.03 to 0.08% C, ≤0.25% Si, 0.3 to 2.5% Mn, 0.001 to 0.10% Al, 0.02 to 1.0% Cr, 0.02 to 1.0% Ni, 0.02 to 1.2% Mo, 0.004 to 0.010% Ti and 0.002 to 0.008% N, further comprising one or more kinds selected from Ca, Mg and rare earth metals by 0.0002 to 0.005% in total, comprising 0 to 0.08% V, 0 to 0.05% Nb and 0 to 1.0% Cu, and, if required, comprising 0.0003 to 0.01% B, and the balance Fe with impurities, and, in the impurities, the content of P is ≤0.05%, and the content of S is ≤0.005%. In the method for producing the steel pipe, the cooling viscosity for the slab, heating conditions for piercing, and heat treatment conditions after pipe making are characterized.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于具有高强度和优异韧性的管线管的粗无缝钢管，并提供其制造方法。解决方案：具有高强度和令人满意的韧性的管线的厚无缝钢管具有包含0.03-0.08％的C，≤0.25％的Si，0.3到2.5％的Mn，0.001到0.10％的Al，0.02到1.0的组成％Cr，0.02〜1.0％Ni，0.02〜1.2％Mo，0.004〜0.010％Ti和0.002〜0.008％N，还含有选自Ca，Mg和稀土金属中的一种以上，总计0.0002〜0.005％包括0至0.08％V，0至0.05％的Nb和0至1.0％的Cu，如果需要，其含有0.0003至0.01％的B，余量为Fe与杂质，并且在杂质中，P的含量≤ 0.05％，S含量≤0.005％。在制造钢管的方法中，对板坯的冷却粘度，穿孔加热条件和制管后的热处理条件进行了表征。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2004176172A High strength seamless steel pipe with excellent hic (hydrogen-induced cracking) resistance, and its manufacturing method 审中-公开
标题翻译：具有优异HIC（氢诱导破碎）电阻的高强度无缝钢管及其制造方法
公开(公告)号：JP2004176172A
公开(公告)日：2004-06-24
申请号：JP2003051427
申请日：2003-02-27
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： MURAO NOBUTOSHI , HISAMUNE NOBUYUKI , OSAKO HAJIME
IPC分类号： B21B3/00 , C21D8/10 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/38 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/58
CPC分类号： C22C38/02 , C21D8/10 , C21D8/105 , C21D2211/002 , C21D2211/005 , C21D2211/008 , C22C38/002 , C22C38/04 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/42 , C22C38/44 , C22C38/46
摘要： PROBLEM TO BE SOLVED: To provide a seamless steel pipe having ≥483 MPa yield stress and excellent HIC resistance and suitable for a pipeline.
SOLUTION: The high strength seamless steel pipe having ≥483 MPa yield stress and excellent HIC resistance has a composition containing, by mass, 0.03 to 0.11% C, 0.05 to 0.5% Si, 0.8 to 1.6% Mn, ≤0.025% P, ≤0.003% S, 0.002 to 0.017% Ti, 0.001 to 0.10% Al, 0.05 to 0.5% Cr, 0.02 to 0.3% Mo, 0.02 to 0.20% V, 0.0005 to 0.005% Ca, ≤0.008% N and ≤0.004% O (oxygen) and also has a structure which is composed of bainite or/and martensite and in which ferrite is precipitated at the grain boundaries. Further, it is desirable to incorporate either or both of 0.05 to 0.5 mass% Cu and 0.05 to 0.5 mass% Ni for securing high strength. In order to manufacture the above steel pipe, it is necessary to limit starting temperature of quenching after finish rolling, cooling rate and tempering temperature.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供具有≥483MPa屈服应力和优异的耐HIC电阻并且适合于管道的无缝钢管。解决方案：具有≥483MPa屈服应力和优异的耐HIC性的高强度无缝钢管具有以质量计含有0.03至0.11％的C，0.05至0.5％的Si，0.8至1.6％的Mn，≤0.025％ P，≤0.003％S，0.002〜0.017％的Ti，0.001〜0.10％的Al，0.05〜0.5％的Cr，0.02〜0.3％的Mo，0.02〜0.20％的V，0.0005〜0.005％的Ca，≤0.008％的N，≤0.004 ％O（氧），并且还具有由贝氏体或/和马氏体组成的铁素体在晶界析出的结构。此外，为了确保高强度，优选掺入0.05〜0.5质量％的Cu和0.05〜0.5质量％的Ni中的任一种或两者。为了制造上述钢管，需要限制精轧后的淬火开始温度，冷却速度和回火温度。版权所有（C）2004，JPO

4. 发明专利

JP2004124158A Seamless steel pipe and manufacturing method therefor 有权
公开(公告)号：JP2004124158A
公开(公告)日：2004-04-22
申请号：JP2002289166
申请日：2002-10-01
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： MURAO NOBUTOSHI , HISAMUNE NOBUYUKI , KUMAGAI MASASHI
IPC分类号： C21D9/08 , C22C38/00 , C22C38/28 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a seamless steel pipe suitable for a line pipe superior in toughness, without hindering a rationalization of a heat treatment process.
SOLUTION: The seamless steel pipe comprises, by mass%, 0.02-0.15% C, 0.05-1.0% Si, 0.30-2.5% Mn, 0.030% or less P, 0.006% or less S, 0.002-0.017% Ti, 0.001-0.100% Al, 0.008% or less N, 0.004% or less O (oxygen) and the balance Fe with impurities; has a grain size number of less than 7 defined in JIS G 0551; and has the number of oxide-based inclusions having diameters larger than 300 μm, in an amount of one or less per square centimeter, and the number of those having diameters of 5 to 300 μm in an amount of 200 or less per square centimeter, in the steel.
COPYRIGHT: (C)2004,JPO

5. 发明专利

JP2010242222A Thick-walled seamless steel pipe for line pipe 有权
标题翻译：用于线管的厚壁无缝钢管
公开(公告)号：JP2010242222A
公开(公告)日：2010-10-28
申请号：JP2010121141
申请日：2010-05-27
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： KONDO KUNIO , ARAI YUJI , HISAMUNE NOBUYUKI
IPC分类号： C22C38/00 , C21D8/10 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a thick-walled seamless steel pipe for line pipe having high strength and excellent in toughness.
SOLUTION: The thick-walled seamless steel pipe for a line pipe having high strength, high toughness and a thickness of 30-50 mm comprises, by mass, 0.03-0.08% C, ≤0.15% Si, 0.3-2.5% Mn, 0.001-0.10% Al, 0.02-1.0% Cr, 0.02-1.0% Ni, 0.02-1.2% Mo, 0.004-0.010% Ti, 0.002-0.008% N, 0.0002-0.005% in total of at least one of Ca, Mg and REM, and the balance Fe and impurities. In the impurities, the contents of P and S are ≤0.05% and ≤0.005%, respectively. In addition to the above components, the steel pipe may contain at least one of 0.0003-0.01% B, ≤0.08% V, ≤0.05% Nb and ≤1.0% Cu.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有高强度和优异的韧性的管道管的厚壁无缝钢管。解决方案：具有高强度，高韧性和厚度为30-50mm的管线管的厚壁无缝钢管，其质量为0.03-0.08％C，≤0.15％Si，0.3-2.5％ Mn，0.001-0.10％Al，0.02-1.0％Cr，0.02-1.0％Ni，0.02-1.2％Mo，0.004-0.010％Ti，0.002-0.008％N，0.0002-0.005％的Ca中的至少一种，Mg和REM，余量为Fe和杂质。在杂质中，P和S的含量分别为≤0.05％和≤0.005％。除了上述部件之外，钢管可以含有0.0003-0.01％B，≤0.08％V，≤0.05％Nb和≤1.0％Cu中的至少一种。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2004143593A High strength seamless steel tube having excellent hydrogen induced cracking resistance, and production method therefor 有权
标题翻译：具有优异的氢诱导破碎电阻的高强度无缝钢管及其生产方法
公开(公告)号：JP2004143593A
公开(公告)日：2004-05-20
申请号：JP2003336242
申请日：2003-09-26
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： MURAO NOBUTOSHI , HISAMUNE NOBUYUKI , OSAKO HAJIME , KONDO KUNIO
IPC分类号： C21D8/10 , C21D1/18 , C21D9/08 , C22C38/00 , C22C38/38 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a high strength seamless steel tube which has a yield stress of ≥483 MPa, and excellent HIC (Hydrogen Induced Cracking) resistance, and to provide a production method therefor.
SOLUTION: The high strength seamless steel tube having a yield stress of ≥483 MPa, and excellent hydrogen induced cracking resistance comprises, by mass, 0.03 to 0.11% C, 0.05 to 0.5% Si, 0.8 to 1.6% Mn, ≤0.025% P, ≤0.003% S, 0.002 to 0.017% Ti, 0.001 to 0.10% Al, 0.05 to 0.5% Cr, 0.02 to 0.3% Mo, 0.02 to 0.20% V, 0.0005 to 0.005% Ca, ≤0.008% N and ≤0.004% O (oxygen). The steel tube has a structure which consists of bainite or/and martensite and in which ferrite is precipitated on the grain boundaries. The steel tube desirably comprises one or more of metals selected from 0.05 to 0.5% Cu and 0.05 to 0.5% Ni for securing its high strength. In the production of the steel tube, the quenching starting temperature, cooling rate and tempering temperature after finish rolling are desirably controlled.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供屈服应力为≥483MPa的高强度无缝钢管，并且具有优异的HIC（氢诱发开裂）电阻，并提供其制造方法。解决方案：屈服应力为≥483MPa，优异的氢诱发开裂性的高强度无缝钢管，以质量计含有0.03〜0.11％的C，0.05〜0.5％的Si，0.8〜1.6％的Mn，≤ 0.025％P，≤0.003％S，0.002〜0.017％Ti，0.001〜0.10％Al，0.05〜0.5％Cr，0.02〜0.3％Mo，0.02〜0.20％V，0.0005〜0.005％Ca，≤0.008％N， ≤0.004％O（氧）。钢管具有由贝氏体或/和马氏体组成的铁素体在晶界上析出的结构。钢管理想地包含一种或多种选自0.05-0.5％Cu和0.05-0.5％Ni的金属，以确保其高强度。在钢管的制造中，期望控制精轧后的淬火起始温度，冷却速度和回火温度。版权所有（C）2004，JPO

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式