利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

52 条记录 (耗时 0.033 秒)

    Low alloy steel for oil country tubular goods and method of making
    41.
    发明授权
    Low alloy steel for oil country tubular goods and method of making 有权
    石油国家管状低合金钢及其制造方法

    公开(公告)号：US06267828B1

    公开(公告)日：2001-07-31

    申请号：US09456917

    申请日：1999-12-07

    申请人： Takahiro Kushida ,  Kaori Miyata ,  Kunio Kondo ,  Tomohiko Omura

    发明人： Takahiro Kushida ,  Kaori Miyata ,  Kunio Kondo ,  Tomohiko Omura

    IPC分类号： C22C3822

    CPC分类号： C21D6/02 ,  C21D1/18 ,  C22C38/22 ,  C22C38/24

    摘要： A low alloy steel for oil country tubular well which has a yield stress of 110 ksi or above, and excellent sulfide stress cracking resistance. The low alloy steel comprises, by weight, 0.2 to 0.35% carbon, 0.2 to 0.7% chromium, 0.1 to 0.5% molybdenum, 0.1 to 0.3% vanadium, 0 to 0.5% silicon, 0 to 1% manganese, 0 to 0.1% aluminum, 0 to 0.1% niobium, 0 to 0.05% titanium, 0 to 0.005% boron, 0 to 0.1% zirconium, 0 to 1% tungsten, 0 to 0.01% calcium, 0.025% or less phosphorus, 0.01% or less sulfur, 0.01% or less nitrogen, and 0.01% or less oxygen. The low alloy steel further comprises a total amount of precipitated carbides between about 2 to 5% by weight, and a ratio of the MC type carbide to the total amount of the precipitated carbides is between about 8 to 40% by weight.

    摘要翻译： 用于油井管的低合金钢，其屈服应力为110ksi以上，并且具有优异的耐硫化物应力开裂性。 低合金钢的重量为0.2〜0.35％的碳，0.2〜0.7％的铬，0.1〜0.5％的钼，0.1〜0.3％的钒，0〜0.5％的硅，0〜1％的锰，0〜0.1％的铝 ，0〜0.1％的铌，0〜0.05％的钛，0〜0.005％的硼，0〜0.1％的锆，0〜1％的钨，0〜0.01％的钙，0.025％以下的磷，0.01％以下的硫，0.01 ％以下的氮，0.01％以下的氧。 低合金钢还含有约2〜5重量％的沉淀碳化物的总量，MC型碳化物与沉淀碳化物总量的比例为约8〜40重量％。

    Austenitic stainless steel for hydrogen gas and a method for its manufacture
    44.
    发明授权
    Austenitic stainless steel for hydrogen gas and a method for its manufacture 有权
    用于氢气的奥氏体不锈钢及其制造方法

    公开(公告)号：US08696835B2

    公开(公告)日：2014-04-15

    申请号：US12953576

    申请日：2010-11-24

    申请人： Hiroyuki Semba ,  Masaaki Igarashi ,  Tomohiko Omura ,  Mitsuo Miyahara ,  Kazuhiko Ogawa

    发明人： Hiroyuki Semba ,  Masaaki Igarashi ,  Tomohiko Omura ,  Mitsuo Miyahara ,  Kazuhiko Ogawa

    IPC分类号： C22C38/40 ,  C22C38/00 ,  C22C38/02 ,  C22C38/44 ,  C22C38/58

    CPC分类号： C22C38/001 ,  C22C38/02 ,  C22C38/44 ,  C22C38/58

    摘要： An austenitic stainless steel for use in a hydrogen gas atmosphere comprises, in mass %, C: 0.10% or less, Si: 1.0% or less, Mn: 0.01 to 30%, P: 0.040% or less, S: 0.01% or less, Cr: 15 to 30%, Ni: 5.0 to 30%, Al: 0.10% or less, N: 0.001 to 0.30% with the balance Fe and inevitable impurities. An X-ray (111) integration intensity of a cross section along the direction rectangular to the working direction is five times that in a random direction or less, and the X-ray integration intensity ratio of a cross section along the working direction satisfies I(220)/I(111)≦10. The high strength steel can also contain one or more of the groups of Mo and W; V, Nb, Ta, Ti, Zr and Hf; B; Cu and Co; Mg, Ca, La, Ce, Y, Sm, Pr and Nd.

    摘要翻译： 用于氢气气氛的奥氏体系不锈钢以质量％计含有C：0.10％以下，Si：1.0％以下，Mn：0.01〜30％，P：0.040％以下，S：0.01％以下 较少，Cr：15〜30％，Ni：5.0〜30％，Al：0.10％以下，N：0.001〜0.30％，余量为Fe和不可避免的杂质。 沿着与工作方向成矩形的截面的X射线（111）积分强度为随机方向以下的5倍，并且沿着工作方向的截面的X射线积分强度比满足I （220）/ I（111）＆nlE; 10。 高强度钢还可以含有Mo和W中的一种或多种; V，Nb，Ta，Ti，Zr和Hf; B; 铜和钴; Mg，Ca，La，Ce，Y，Sm，Pr和Nd。

    Steel for oil well pipe excellent in sulfide stress cracking resistance
    45.
    发明授权
    Steel for oil well pipe excellent in sulfide stress cracking resistance 有权
    油井管用钢具有优异的耐硫化应力开裂性能

    公开(公告)号：US08617462B2

    公开(公告)日：2013-12-31

    申请号：US11902432

    申请日：2007-09-21

    申请人： Tomohiko Omura

    发明人： Tomohiko Omura

    IPC分类号： C22C38/22 ,  C22C38/60 ,  C22C38/00

    CPC分类号： C22C38/22 ,  C21D8/105 ,  C21D9/08 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/12 ,  C22C38/14 ,  C22C38/24

    摘要： A steel for an oil well pipe, having high strength and excellent SSC resistance, consists of, by mass %, C: 0.30 to 0.60%, Si: 0.05 to 0.5%, Mn: 0.05 to 1.0%, Al: 0.005 to 0.10%, Cr+Mo: 1.5 to 3.0%, wherein Mo is 0.5% or more, V: 0.05 to 0.3%, Nb: 0 to 0.1%, Ti: 0 to 0.1%, Zr: 0 to 0.1%, N (nitrogen): 0 to 0.03%, Ca: 0 to 0.01%, and the balance Fe and impurities; P 0.025% or less, S 0.01% or less, B 0.0010% or less and O (oxygen) 0.01% or less. The method involves heating the steel at 1150° C. or more; producing a seamless steel pipe by hot working; water-cooling the pipe to a temperature in a range of 400 to 600° C. immediately after finishing the working; and subjecting the pipe to a heat treatment for bainite isothermal transformation in a range of 400 to 600° C.

    摘要翻译： 用于油井管的钢，其强度高，耐SSC性优异，以质量％计含有C：0.30〜0.60％，Si：0.05〜0.5％，Mn：0.05〜1.0％，Al：0.005〜0.10％ ，Cr + Mo：1.5〜3.0％，Mo为0.5％以上，V：0.05〜0.3％，Nb：0〜0.1％，Ti：0〜0.1％，Zr：0〜0.1％，N（氮） ：0〜0.03％，Ca：0〜0.01％，余量为Fe和杂质; P：0.025％以下，S：0.01％以下，B：0.0010％以下，O（氧）0.01％以下。 该方法包括在1150℃或更高温度下加热钢; 通过热加工生产无缝钢管; 在完成加工后立即将管道水冷至400至600℃范围内的温度; 并对管进行贝氏体热处理，在400〜600℃的范围内进行等温转变。

    Low alloy steel for oil country tubular goods and seamless steel pipe
    46.
    发明申请
    Low alloy steel for oil country tubular goods and seamless steel pipe 审中-公开
    低合金钢用于油管和无缝钢管

    公开(公告)号：US20090098403A1

    公开(公告)日：2009-04-16

    申请号：US12232363

    申请日：2008-09-16

    申请人： Tomohiko Omura ,  Yuji Arai ,  Kuniaki Tomomatsu ,  Toshiharu Abe

    发明人： Tomohiko Omura ,  Yuji Arai ,  Kuniaki Tomomatsu ,  Toshiharu Abe

    IPC分类号： C22C38/22 ,  C22C38/12 ,  C22C38/04 ,  B32B1/08

    CPC分类号： C22C38/22 ,  C21D8/12 ,  C21D9/08 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  Y10T428/12292

    摘要： A low alloy steel is provided for oil country tubular goods with a yield strength between 654 MPa and 757 MPa, and possessing excellent resistance to HIC and SSC in high-pressure hydrogen sulfides environment, and comprising, by mass %: 0.10 to 0.60% C; 0.05 to 0.5% Si; 0.05 to 3.0% Mn; 0.025% or less P; 0.010% or less S; 0.005 to 0.10% Al; 0.01% or less O (oxygen); 3.0% or less Cr; and 3.0% or less Mo, wherein the amount of Cr and Mo content is 1.2% or more, with the balance being Fe and impurities, and the number of nonmetallic inclusions whose major axis is 10 μm or more is 10 per square millimeter in the inspected cross section. The present invention provides a low alloy steel for oil country tubular goods possessing excellent resistance to sulfide stress cracking, and a seamless steel pipe.

    摘要翻译： 本发明提供一种低合金钢，其屈服强度在654MPa〜757MPa之间，在高压硫化氢环境下具有优异的抗HIC，SSC特性，其质量含量为0.10〜0.60％ ; 0.05〜0.5％Si; 0.05〜3.0％Mn; 0.025％以下P; 0.010％以下S; 0.005〜0.10％Al; 0.01％以下O（氧）; 3.0％以下Cr; 和3.0％以下的Mo，其中Cr和Mo的含量为1.2％以上，余量为Fe和杂质，长轴为10μm以上的非金属夹杂物的数量为10个/平方毫米 检查截面。 本发明提供一种具有优异的抗硫化物应力开裂性的油井筒用低合金钢和无缝钢管。

    Seamless steel pipe for line pipe and a method for its manufacture
    47.
    发明申请
    Seamless steel pipe for line pipe and a method for its manufacture 有权
    管道无缝钢管及其制造方法

    公开(公告)号：US20080216928A1

    公开(公告)日：2008-09-11

    申请号：US12071517

    申请日：2008-02-21

    申请人： Kenji Kobayashi ,  Tomohiko Omura ,  Kunio Kondo ,  Yuji Arai ,  Nobuyuki Hisamune

    发明人： Kenji Kobayashi ,  Tomohiko Omura ,  Kunio Kondo ,  Yuji Arai ,  Nobuyuki Hisamune

    IPC分类号： C21D1/18 ,  C22C38/38 ,  C22C38/22

    CPC分类号： C22C38/005 ,  C21D8/105 ,  C21D9/08 ,  C22C38/001 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  Y10S148/909

    摘要： A seamless steel pipe for line pipe having high strength and stable toughness and having resistance to sulfide corrosion cracking at low temperatures to room temperature is provided. A seamless steel pipe according to the present invention has a chemical composition comprising, in mass percent, C: 0.03-0.08%, Si: 0.05-0.5%, Mn: 1.0-3.0%, Mo: greater than 0.4% to 1.2%, Al: 0.005-0.100%, Ca: 0.001-0.005%, a remainder of Fe and impurities including N, P, S, O, and Cu, with the impurities containing at most 0.01% of N, at most 0.05% of P, at most 0.01% of S, at most 0.01% of O, and at most 0.1% of Cu, and having a microstructure comprising a bainitic-martensitic dual phase structure.

    摘要翻译： 提供了一种具有高强度和稳定韧性并且在低温至室温下具有耐硫化物腐蚀开裂性的线管用无缝钢管。 根据本发明的无缝钢管具有以质量％计含有C：0.03-0.08％，Si：0.05-0.5％，Mn：1.0-3.0％，Mo：大于0.4％至1.2％的化学组成， Al：0.005-0.100％，Ca：0.001-0.005％，剩余的Fe和杂质包括N，P，S，O和Cu，杂质含量最多为0.01％，P最多为0.05％ 最多0.01％的S，至多0.01％的O和至多0.1％的Cu，并且具有包含贝氏体 - 马氏体双相结构的微结构。

    Low alloy steel for oil well pipes having excellent sulfide stress cracking resistance
    49.
    发明申请
    Low alloy steel for oil well pipes having excellent sulfide stress cracking resistance 有权
    用于油井管的低合金钢具有优异的耐硫化物应力开裂性能

    公开(公告)号：US20070137736A1

    公开(公告)日：2007-06-21

    申请号：US11640030

    申请日：2006-12-14

    申请人： Tomohiko Omura ,  Kenji Kobayashi

    发明人： Tomohiko Omura ,  Kenji Kobayashi

    IPC分类号： C22C38/32

    CPC分类号： C22C38/22 ,  C21D8/105 ,  C21D9/14 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/24 ,  C22C38/28 ,  C22C38/32

    摘要： Disclosed is a low alloy steel for oil well pipes which has excellent sulfide stress cracking resistance and is suitable for casing and tubing for oil wells or gas wells. Specifically disclosed is a low alloy steel for oil well pipes containing, in mass %, 0.2-0.35% of C, 0.05-0.5% of Si, 0.05-1.0% of Mn, not more than 0.025% of P,. not more than 0.01% of S, 0.005-0.10% of Al, 0.1-1.0% of Cr, 0.5-1.0% of Mo, 0.002-0.05% of Ti, 0.05-0.3% of V, 0.0001-0.005% of B, not more than 0.01% of N, not more than 0.01% of O (oxygen), 0-0.1% of Nb, 0-0.01% of Ca, 0-0.01% of Mg and 0-0.1% of Zr, and having a half-value breadth (H) and a hydrogen diffusion coefficient (D) (10−6 cm2/s) satisfying the following formula (1): 30H+D≦19.5 (1).

    摘要翻译： 公开了一种用于油井管的低合金钢，具有优异的耐硫化物应力开裂性，适用于油井或气井的套管和油管。 具体公开了一种油井管的低合金钢，以质量％计含有0.2-0.35％的C，0.05-0.5％的Si，0.05-1.0％的Mn，不超过P的0.025％。 不超过0.01％的S，0.005-0.10％的Al，0.1-1.0％的Cr，0.5-1.0％的Mo，0.002-0.05％的Ti，0.05-0.3％的V，0.0001-0.005％的B， 不超过0.01％的N，不超过0.01％的O（氧），0-0.1％的Nb，0-0.01％的Ca，0-0.01％的Mg和0-0.1％的Zr，并且具有 满足下列公式（1）的半值宽度（H）和氢扩散系数（D）（10 -6 D / cm 2）：30H + D < = 19.5（1）。

    Duplex stainless steel
    50.
    发明申请
    Duplex stainless steel 审中-公开
    双相不锈钢

    公开(公告)号：US20060191605A1

    公开(公告)日：2006-08-31

    申请号：US11315203

    申请日：2005-12-23

    申请人： Kazuhiro Ogawa ,  Tomohiko Omura

    发明人： Kazuhiro Ogawa ,  Tomohiko Omura

    IPC分类号： C22C38/44

    CPC分类号： C22C38/44 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/54

    摘要： A duplex stainless steel having excellent pitting resistance and weldability and particularly a duplex stainless steel which does not form minute intermetallic compounds even in a weld heat affected zone is provided. It has a chemical composition comprising C: at most 0.03%, Si: at most 1.0%, Mn: at most 1.5%, P: at most 0.040%, S: at most 0.008%, Cr: 23.0-27.0%, Mo: 2.0-4.0%, Ni: 5.0-9.0%, W: greater than 1.5% up to 5.0%, N: 0.24-0.35%, and a remainder of Fe and impurities and satisfying the relationships PREW=Cr+3.3(Mo+0.5W)+16N is at least 40 and Mo+1.1Ni≦12.5 Mo−0.8Ni≦−1.6 wherein the number of coarse inclusions having the following definition observed in a cross section is at most 10 per mm2. Here, coarse inclusions are defined as inclusions containing at least 20 mass % of Al and having a major diameter of at least 5 micrometers.

    摘要翻译： 提供了具有优异的耐点蚀性和可焊性的双相不锈钢，特别是即使在焊接热影响区也不形成微小金属间化合物的双相不锈钢。 其具有C：0.03％以下，Si：1.0％以下，Mn：1.5％以下，P：0.040％以下，S：0.008％以下，Cr：23.0〜27.0％，Mo： 2.0-4.0％，Ni：5.0-9.0％，W：大于1.5％至5.0％，N：0.24-0.35％，余量为Fe和杂质，满足PREW = Cr + 3.3（Mo + 0.5 W）+ 16N至少为40，并且<？in-line-formula description =“In-line Formulas”end =“lead”？> Mo + 1.1Ni <= 12.5 <？in-line-formula description =“In- 行公式“end =”tail“？> <？in-line-formula description =”In-line Formulas“end =”lead“？> Mo-0.8Ni <= - 1.6 <？in-line-formula description = 在线公式“end =”tail“？>其中在横截面中观察到具有以下定义的粗大夹杂物的数量至多为10 / mm 2。 这里，粗大夹杂物被定义为含有至少20质量％的Al且长径至少为5微米的夹杂物。