利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

14 条记录 (耗时 0.014 秒)

    Ni-Cr ALLOY MATERIAL AND OIL WELL SEAMLESS PIPE USING SAME
    2.
    发明授权
    Ni-Cr ALLOY MATERIAL AND OIL WELL SEAMLESS PIPE USING SAME 有权

    公开(公告)号：EP3070184B1

    公开(公告)日：2018-06-13

    申请号：EP14862365.5

    申请日：2014-11-11

    申请人： Nippon Steel & Sumitomo Metal Corporation

    发明人： TOMIO, Yusaku ,  SAGARA, Masayuki

    IPC分类号： C22C19/05 ,  C22C30/02 ,  C22F1/00 ,  C22F1/10

    CPC分类号： F16L9/02 ,  C22C19/055 ,  C22C30/02 ,  C22F1/10

    摘要： A Ni-Cr alloy material has a chemical composition that consists of; Si: 0.01 to 0.5%, Mn: 0.01 to less than 1.0%, Cu: 0.01 to less than 1.0%, Ni: 48 to less than 55%, Cr: 22 to 28%, Mo: 5.6 to less than 7.0%, N: 0.04 to 0.16%, sol.Al: 0.03 to 0.20%, REM: 0.01 to 0.074%, W: 0% or more and less than 8.0%, Co: 0 to 2.0%; one or more of Ca and Mg: 0.0003 to 0.01% in total, and one or more of Ti, Nb, Zr, and V: 0 to 0.5% in total, the balance thereof being Fe and impurities, and the impurities include C ‰¤ 0.03%, P ‰¤ 0.03%, S ‰¤ 0.001%, and O ‰¤ 0.01%. The dislocation density Á of the Ni-Cr alloy material expressed in m -2 satisfies a formula [7.0 × 10 15 ‰¤ Á ‰¤2.7 × 10 16 - 2.67 × 10 17 × REM]. This Ni-Cr alloy material is excellent in hot workability and toughness, and also in corrosion resistance in an environment being at high temperatures more than 200°C and including H 2 S.

    Ni-Cr ALLOY MATERIAL AND OIL WELL SEAMLESS PIPE USING SAME
    5.
    发明公开
    Ni-Cr ALLOY MATERIAL AND OIL WELL SEAMLESS PIPE USING SAME 有权
    NI-CR-LEGIERUNGSMATERIAL UND NAHTLOSESÖLQUELLENROHRDAMIT

    公开(公告)号：EP3070184A1

    公开(公告)日：2016-09-21

    申请号：EP14862365.5

    申请日：2014-11-11

    申请人： Nippon Steel & Sumitomo Metal Corporation

    发明人： TOMIO, Yusaku ,  SAGARA, Masayuki

    IPC分类号： C22C19/05 ,  C22C30/02 ,  C22F1/00 ,  C22F1/10

    CPC分类号： F16L9/02 ,  C22C19/055 ,  C22C30/02 ,  C22F1/10

    摘要： A Ni-Cr alloy material has a chemical composition that consists of; Si: 0.01 to 0.5%, Mn: 0.01 to less than 1.0%, Cu: 0.01 to less than 1.0%, Ni: 48 to less than 55%, Cr: 22 to 28%, Mo: 5.6 to less than 7.0%, N: 0.04 to 0.16%, sol.Al: 0.03 to 0.20%, REM: 0.01 to 0.074%, W: 0% or more and less than 8.0%, Co: 0 to 2.0%; one or more of Ca and Mg: 0.0003 to 0.01% in total, and one or more of Ti, Nb, Zr, and V: 0 to 0.5% in total, the balance thereof being Fe and impurities, and the impurities include C ≤ 0.03%, P ≤ 0.03%, S ≤ 0.001%, and O ≤ 0.01%. The dislocation density ρ of the Ni-Cr alloy material expressed in m -2 satisfies a formula [7.0 × 10 15 ≤ ρ ≤2.7 × 10 16 - 2.67 × 10 17 × REM]. This Ni-Cr alloy material is excellent in hot workability and toughness, and also in corrosion resistance in an environment being at high temperatures more than 200°C and including H 2 S.

    摘要翻译： Ni-Cr合金材料具有以下成分： Si：0.01〜0.5％，Mn：0.01〜小于1.0％，Cu：0.01〜小于1.0％，Ni：48〜小于55％，Cr：22〜28％，Mo：5.6〜小于7.0％ N：0.04〜0.16％，sol.Al：0.03〜0.20％，REM：0.01〜0.074％，W：0％以上且小于8.0％，Co：0〜2.0％ Ca和Mg中的一种或多种：总计为0.0003〜0.01％，Ti，Nb，Zr和V中的一种以上为0〜0.5％，余量为Fe和杂质，杂质为C‰ ¤0.03％，P‰0.03％，S‰0.001％，O‰0.01％。 以m-2表示的Ni-Cr合金材料的位错密度-2满足公式[7.0×10 15‰¤¤2.7×10 16 -2.67×10 17×REM]。 该Ni-Cr合金材料在热加工性和韧性方面优异，并且在高于200℃的高温以及包括H 2 S的环境中也具有耐腐蚀性。

    MARTENSITE-BASED CHROMIUM-CONTAINING STEEL, AND STEEL PIPE FOR OIL WELL
    7.
    发明公开
    MARTENSITE-BASED CHROMIUM-CONTAINING STEEL, AND STEEL PIPE FOR OIL WELL 审中-公开
    MARTENSITBASIERTER CHROMHALTIGER STAHL UND STAHLROHRFÜRÖLBOHRLOCH

    公开(公告)号：EP3095886A1

    公开(公告)日：2016-11-23

    申请号：EP14878861.5

    申请日：2014-12-24

    申请人： Nippon Steel & Sumitomo Metal Corporation

    发明人： OMURA, Tomohiko ,  TOMIO, Yusaku ,  TAKABE, Hideki ,  MOCHIZUKI, Toshio

    IPC分类号： C22C38/00 ,  C22C38/24 ,  C21D8/02 ,  C21D8/10 ,  C21D9/08 ,  C22C38/54

    摘要： A martensitic Cr-containing steel having excellent corrosion resistance, SSC resistance, and IGHIC resistance is provided. A martensitic Cr-containing steel according to the present invention includes: a chemical composition consisting of, by mass%, Si: 0.05 to 1.0%, Mn: 0.1 to 1.0%, Cr: 8 to 12%, V: 0.01 to 1.0%, sol. Al: 0.005 to 0.10%, with the balance being Fe and impurities, wherein an effective Cr amount defined by "Cr - 16.6 x C" is not less than 8%, and an Mo equivalent defined by "Mo + 0.5 x W" is 0.03 to 2%; a micro-structure wherein a grain size number of prior-austenite crystal grain is not less than 8.0, and which consists of, in volume fraction, 0 to 5% of ferrite, 0 to 5% of austenite, with the balance being tempered martensite; and a yield strength of less than 379 to 551 MPa, wherein a grain-boundary segregation ratio of Mo and W is not less than 1.5.

    摘要翻译： 提供具有优异的耐腐蚀性，耐SSC性和耐IGHIC性的马氏体含Cr钢。 根据本发明的马氏体含Cr钢包括：质量％Si：0.05〜1.0％，Mn：0.1〜1.0％，Cr：8〜12％，V：0.01〜1.0％ ，溶胶 Al：0.005〜0.10％，余量为Fe和杂质，其中由“Cr-16.6×C”定义的有效Cr量不小于8％，由“Mo + 0.5×W”定义的Mo当量为 0.03〜2％ 原奥氏体晶粒的晶粒数不小于8.0的微结构，其体积分数为0-5％的铁素体，0-5％的奥氏体，余量为回火马氏体 ; 屈服强度小于379〜551MPa，其中Mo和W的晶界偏析比不小于1.5。