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    Low thermal expansion Ni-base superalloy
    7.
    发明公开
    Low thermal expansion Ni-base superalloy 有权
    Ni-basierte Superlegierung mit geringerWärmeausdehnung

    公开(公告)号：EP2418295A1

    公开(公告)日：2012-02-15

    申请号：EP11008616.2

    申请日：2007-06-13

    申请人： Daido Tokushuko Kabushiki Kaisha ,  Mitsubishi Heavy Industries, Ltd.

    发明人： Hamano, Shuji ,  Ueta, Shigeki

    IPC分类号： C22C19/05

    CPC分类号： C22C19/056 ,  C22C19/055

    摘要： The present invention relates to a low thermal expansion Ni-base superalloy containing, in terms of mass %, C: 0.15 % or less; Si: 1 % or less; Mn: 1 % or less; Cr: 5 % or more but less than 20 %; at least one of Mo, W and Re, in which Mo + 1/2(W + Re) is 5 % or more but less than 20 %; W: 10 % or less: Al: 0.1 to 2.5 %; Ti: 0.10 to 0.95 %; Nb + 1/2 Ta: 1.5 % or less; B: 0.001 to 0.02 %; Zr: 0.001 to 0.2 %; Fe: 4.0 % or less; and a balance of inevitable impurities and Ni, wherein the total amount of Al, Ti, Nb and Ta is 2.0 to 6.5 % in terms of atomic %. The low thermal expansion Ni-base superalloy of the present invention has a thermal expansion coefficient almost equal to that of 12 Cr ferritic steel, excellent high temperature strength, excellent corrosion and oxidation resistance, good hot-workability, and excellent weldability.

    摘要翻译： 本发明涉及以质量％计含有C：0.15％以下的低热膨胀性Ni基超合金。 Si：1％以下; Mn：1％以下; Cr：5％以上但小于20％; Mo，W和Re中的至少一种，Mo + 1/2（W + Re）为5％以上且小于20％。 W：10％以下：Al：0.1〜2.5％ Ti：0.10〜0.95％ Nb + 1/2 Ta：1.5％以下; B：0.001〜0.02％ Zr：0.001〜0.2％ Fe：4.0％以下; 余量为不可避免的杂质和Ni，其中Al，Ti，Nb和Ta的总量按原子％计为2.0〜6.5％。 本发明的低热膨胀性Ni基超合金的热膨胀系数与12Cr的铁素体钢的热膨胀系数几乎相等，耐高温性优异，耐腐蚀性，耐氧化性优异，热加工性良好，焊接性优异。

    Free-cutting alloy tool steel
    9.
    发明公开
    Free-cutting alloy tool steel 有权
    Automatenlegierungswerkzeugstahl

    公开(公告)号：EP2154260A1

    公开(公告)日：2010-02-17

    申请号：EP09009568.8

    申请日：2009-07-23

    申请人： Daido Tokushuko Kabushiki Kaisha

    发明人： Shimizu, Takayuki ,  Masuda, Tetsuya

    IPC分类号： C22C38/18 ,  B21D37/01

    CPC分类号： C22C38/18

    摘要： The present invention provides a free-cutting alloy tool steel containing, in terms of mass%:
    C: from 0.50 to 0.90%,
    Si: from 0.50 to 2.20%,
    Mn: 0.8% or more,
    Mn+0.08Cr: from 1.35 to 2.05%,
    Ni: from 0.01 to 0.30%,
    Mo+0.5W: from 0.01 to 0.50%,
    V: from 0.01 to 0.15%,
    S: from 0.03 to 0.15%,

    with the balance being Fe and unavoidable impurities, in which the contents of Mn and Cr satisfy the following relationship: Mn/Cr: from 0.10 to 0.23, and the contents of Mo, W and Mn satisfy the following relationship: (Mo+0.5W)/Mn: 0.55 or less.

    摘要翻译： 本发明提供一种自由切削合金工具钢，其以质量％计含有：C：0.50〜0.90％，Si：0.50〜2.20％，Mn：0.8％以上，Mn + 0.08Cr：1.35〜 2.05％，Ni：0.01〜0.30％，Mo + 0.5W：0.01〜0.50％，V：0.01〜0.15％，S：0.03〜0.15％，余量为Fe和不可避免的杂质， Mn和Cr的含量满足以下关系：Mn / Cr：0.10〜0.23，Mo，W，Mn的含量满足以下关系：（Mo + 0.5W）/ Mn：0.55以下。

    High-strength nonmagnetic stainless steel, and high-strength nonmagnetic stainless steel part and process for producing the same
    10.
    发明公开
    High-strength nonmagnetic stainless steel, and high-strength nonmagnetic stainless steel part and process for producing the same 有权
    高强度，非磁性不锈钢，高强度，非磁性不锈钢部件及其制造方法

    公开(公告)号：EP1990439A2

    公开(公告)日：2008-11-12

    申请号：EP08008528.5

    申请日：2008-05-06

    申请人： Daido Tokushuko Kabushiki Kaisha

    发明人： Ishikawa, Koichi ,  Shimizu, Tetsuya

    IPC分类号： C22C38/42 ,  C22C38/00 ,  C22C38/44 ,  C22C38/58

    CPC分类号： C22C38/42 ,  C21D9/0093 ,  C21D9/02 ,  C21D9/28 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/44 ,  C22C38/52 ,  C22C38/58

    摘要： The present invention relates a high-strength nonmagnetic stainless steel, containing, by weight percent, 0.01 to 0.06% of C, 0.10 to 0.50% of Si, 20.5 to 24.5% of Mn, 0.040% or less of P, 0.010% or less of S, 3.1 to 6.0% of Ni, 0.10 to 0.80% of Cu, 20.5 to 24.5% of Cr, 0.10 to 1.50% of Mo, 0.0010 to 0.0050% ofB, 0.010% or less of O, 0.65 to 0.90% of N, and the remainder being Fe and inevitable impurities; the steel satisfying the following formulae (1) to (4):




    wherein [Cr], [Mo], [N], [Ni], [Mo] and [C] represent the content of Cr, the content of Mo, the content of N, the content of Ni, the content of Mo and the content of C in the steel, respectively, and {Ni} represents the sum of [Ni], [Cu] and [N], and {Cr} represents the sum of [Cr] and [Mo]. The present invention further relates to a high-strength nonmagnetic stainless steel part containing the steel and a process for producing the same.

    摘要翻译： 本发明涉及的高强度非磁性不锈钢，含，按重量百分比，0.01份至0.06％的C，12:10至00：硅的50％以下，Mn为20.5至24.5％，0.040％或更少的P，0.010％或更少的 的S，3.1的Ni 6.0％以下，Cu的0:10至0.80％以下，Cr为20.5〜24.5％，12:10至1：沫的50％，0.0010〜0.0050％OFB，0.010％或以下的O，将N 0.65〜0.90％ ，其余为Fe和不可避免的杂质; 满足下述式（1）〜（4）的钢：C¢R + 3.3×M¢O + 16×N‰¥30 N¢I / C¢R‰¥0:15 2.0‰¤¢Ñ I / M¢ö‰¤30.0和C×1000 / C¢R‰¤2.5 worin [CR]，[Mo]的，[N]，[镍]，[Mo]的和[C]表示在Cr的含量 ，Mo的含量，N的含量，Ni含量，Mo含量和C的在钢中的含量，分别为和{镍} darstellt的[镍]的总和，[铜]和[N] 和{铬} darstellt [CR]和[Mo]的总和。 本发明进一步涉及高强度非磁性不锈钢部件包含钢和其制造的方法。