Steel for use in exhaust manifolds of automobiles
    1.
    发明授权
    Steel for use in exhaust manifolds of automobiles 失效
    用于汽车排气歧管的钢

    公开(公告)号:US5489345A

    公开(公告)日:1996-02-06

    申请号:US506256

    申请日:1995-07-24

    IPC分类号: C22C38/20 C22C38/22 C22C38/26

    CPC分类号: C22C38/20 C22C38/22 C22C38/26

    摘要: A ferritic stainless steel which exhibits improved formability and which is especially useful for making 950.degree. C. or 1000.degree. C. exhaust manifolds is disclosed, the steel composition thereof consisting essentially of, on the basis of weight:C: 0.02% or less, Si: 1.0% or less,Mn: 1.0% or less, P: 0.04% or less,S: 0.005% or less, Cu: 0.1-1.0%,Cr: 18.0-25.0%, Mo: 1.0 (exclusive)-3.0%,Nb: 0.1-1.0%, Al: 0.20% or less,N: 0.02% or less, B: 0-0.01%,C+N.ltoreq.0.03%,preferably, 21%.ltoreq.Cr+Mo+Nb.ltoreq.25%,Fe and incidental impurities: balance.

    摘要翻译: 公开了一种铁素体不锈钢,其表现出改善的成形性,并且特别可用于制备950℃或1000℃排气歧管,其钢组合物基本上由以C:0.02%或更少的重量组成, Si:1.0%以下,Mn:1.0%以下,P:0.04%以下,S:0.005%以下,Cu:0.1〜1.0%,Cr:18.0〜25.0%,Mo:1.0(排他性)-3.0 %,Nb:0.1〜1.0%,Al:0.20%以下,N:0.02%以下,B:0〜0.01%,C + N <0.03%,优选21% Nb≤25%,Fe和偶然杂质:平衡。

    Steel and component of structural equipment for use in a hydrogen gas environment, and a method for the manufacture thereof
    2.
    发明申请
    Steel and component of structural equipment for use in a hydrogen gas environment, and a method for the manufacture thereof 审中-公开
    用于氢气环境的结构设备的钢和部件及其制造方法

    公开(公告)号:US20060191600A1

    公开(公告)日:2006-08-31

    申请号:US11297419

    申请日:2005-12-09

    IPC分类号: C23C8/10

    摘要: A steel which does not suffer from hydrogen embrittlement contains 0.3-30% of Cr as the base material, and has an oxide film having a thickness of 100 nm or more formed on its surface. The oxide film contains at least two elements selected among Fe, Cr and Al in the form of oxides, respectively in an amount of 5 atom % or more. The oxide film is formed through single-step or two-step heating wherein the steel is heated in the atmosphere at 600-900° C. for not less than 3 minutes but not more than 2 hours if necessary, and then heated in a hydrogen atmosphere at 700-1200° C. for not less than 3 minutes but not more than 2 hours while controlling the water vapor partial pressure within the range from 10−8 to 10−1 MPa. The steel is adapted for use in hydrogen gas environments, such as a container or other hardware.

    摘要翻译: 不具有氢脆性的钢含有0.3〜30%的Cr作为基材,并且在其表面形成有厚度为100nm以上的氧化膜。 氧化物膜以氧化物的形式含有选自Fe,Cr和Al中的至少两种元素,分别为5原子%以上。 氧化膜通过单步或两步加热形成,其中钢在大气中在600-900℃下加热不少于3分钟但不超过2小时,如果需要,然后在氢气 气氛在700-1200℃下进行不少于3分钟但不超过2小时,同时将水蒸气分压控制在10 -8至10 -1的范围内, SUP> MPa。 钢适用于氢气环境,如容器或其他硬件。

    Austenitic stainless steel for hydrogen gas and a method for its manufacture
    3.
    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

    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。

    Stainless steel for high-pressure hydrogen gas, and container and device made of same
    5.
    发明申请
    Stainless steel for high-pressure hydrogen gas, and container and device made of same 有权
    用于高压氢气的不锈钢,以及由其制成的容器和装置

    公开(公告)号:US20050178477A1

    公开(公告)日:2005-08-18

    申请号:US11108098

    申请日:2005-04-18

    IPC分类号: B23K35/30 C22C38/18

    摘要: A high-strength stainless steel, having good mechanical properties and corrosion resistance in a high-pressure hydrogen gas environment, is used as a container or other device for high-pressure hydrogen gas, and consists of, by mass %, C: not more than 0.04%, Si: not more than 1.0%, Mn: 7 to 30%, Cr: 15 to 22%, Ni: 5 to 20%, V: 0.001 to 1.0%, N: 0.20 to 0.50% and Al: not more than 0.10%, and the balance Fe and impurities. Among the impurities, P is not more than 0.030%, S is not more than 0.005%, and Ti, Zr and Hf are not more than 0.01% respectively, and the contents of Cr, Mn and N satisfy the relationship, 2.5Cr+3.4Mn≦300N. The weld metal of the welded joint of the container or other device made of the said stainless steel satisfies the relationship, −11≦Nieq−1.1×Creq≦−8.

    摘要翻译: 在高压氢气环境中具有良好的机械性能和耐腐蚀性的高强度不锈钢用作高压氢气的容器或其他装置,以质量%计不超过C: 不超过0.04%,Si:1.0%以下,Mn:7〜30%,Cr:15〜22%,Ni:5〜20%,V:0.001〜1.0%,N:0.20〜 超过0.10%,余量为Fe和杂质。 在杂质中,P不大于0.030%,S不大于0.005%,Ti,Zr和Hf分别不大于0.01%,Cr,Mn和N的含量满足2.5Cr + 3.4Mn <= 300N。 由所述不锈钢制成的容器或其他装置的焊接接头的焊接金属满足以下关系:-11≤Nieq-1.1xCreq <= - 8。

    Stainless steel for high-pressure hydrogen gas
    6.
    发明授权
    Stainless steel for high-pressure hydrogen gas 有权
    不锈钢用于高压氢气

    公开(公告)号:US07531129B2

    公开(公告)日:2009-05-12

    申请号:US11108099

    申请日:2005-04-18

    IPC分类号: C22C38/46 C22C38/58 C22C30/00

    摘要: A high-strength stainless steel, having good mechanical properties and corrosion resistance in a high-pressure hydrogen gas environment, and excellent in stress corrosion cracking resistance, and a container or other device for high-pressure hydrogen gas, which is made of the said stainless steel, are provided. The stainless steel is characterized in that it consists of, by mass %, C: not more than 0.02%, Si: not more than 1.0%, Mn: 3 to 30%, Cr: more than 22% but not more than 30%, Ni: 17 to 30%, V: 0.001 to 1.0%, N: 0.10 to 0.50% and Al: not more than 0.10%, and the balance Fe and impurities. Among the impurities, P is not more than 0.030%, S is not more than 0.005%, and Ti, Zr and Hf are not more than 0.01% respectively, and the contents of Cr, Mn and N satisfy the following relationship [1]: 5Cr+3.4 Mn≦500 N  [1].

    摘要翻译: 一种高强度不锈钢,在高压氢气环境下具有良好的机械性能和耐腐蚀性,耐应力腐蚀开裂性优异,以及用于高压氢气的容器或其他装置,由所述 不锈钢。 不锈钢的特征在于,以质量%计含有C:不大于0.02%的Si:不大于1.0%,Mn:3〜30%,Cr:大于22%但不大于30% ,Ni:17〜30%,V:0.001〜1.0%,N:0.10〜0.50%,Al:0.10%以下,余量为Fe和杂质。 在杂质中,P不大于0.030%,S不大于0.005%,Ti,Zr和Hf分别不大于0.01%,Cr,Mn和N的含量满足下列关系[1] :<?in-line-formula description =“In-line formula”end =“lead”?> 5Cr + 3.4 Mn <= 500 N [1]。<?in-line-formula description =“In-line Formulas” end =“tail”?>

    Austenitic stainless steel
    7.
    发明授权
    Austenitic stainless steel 有权
    奥氏体不锈钢

    公开(公告)号:US07101446B2

    公开(公告)日:2006-09-05

    申请号:US11143610

    申请日:2005-06-03

    IPC分类号: C22C38/00

    摘要: An austenitic stainless steel with minimized deformation by heating and cooling treatment after cold working, which consists of, % by mass, C: 0.03% or less, Si: 2 to 4%, Mn: 0.1 to 2%, P: 0.03% or less, S: 0.03% or less, Ni: 9 to 15%, Cr: 15 to 20%, N: 0.02 to 0.2%, Nb: 0.03% or less, each of Mo and Cu or a total of Mo and Cu: 0.2 to 4%, and the balance Fe and impurities, and satisfies the following formulas (1) and (2). This steel can also have good weldability when the following formula (3) is also satisfied in addition to the formulas (1) and (2); 16.9+6.9Ni+12.5Cu−1.3Cr+3.2Mn+9.3Mo−205C−38.5N−6.5Si−120Nb≧40  (1) 450−440(C+N)−12.2Si−9.5Mn−13.5Cr−20(Cu+Ni)−18.5Mo≦−90  (2) 8.2+30(C+N)+0.5Mn+Ni−1.1(1.5Si+Cr+Mo)+2.5Nb≦−0.8  (3) wherein each element symbol in the formulas (1), (2) and (3) represents the content, % by mass, of each element included in the steel.

    摘要翻译: 一种奥氏体不锈钢,其冷加工后的加热冷却处理变形最小,其质量%C:0.03%以下,Si:2〜4%,Mn:0.1〜2%,P:0.03% 较少,S:0.03%以下,Ni:9〜15%,Cr:15〜20%,N:0.02〜0.2%,Nb:0.03%以下,Mo和Cu:Mo: 0.2〜4%,余量为Fe和杂质,满足下式(1)和(2)。 除了式(1)和(2)之外,当满足以下式(3)时,该钢也可以具有良好的可焊性。 <?in-line-formula description =“In-line Formulas”end =“lead”?> 16.9 + 6.9Ni + 12.5Cu-1.3Cr + 3.2Mn + 9.3Mo-205C-38.5N-6.5Si-120Nb> = 40(1)<?in-line-formula description =“In-line Formulas”end =“tail”?> <?in-line-formula description =“In-line Formulas”end =“lead”?> 440(C + N)-12.2Si-9.5Mn-13.5Cr-20(Cu + Ni)-18.5Mo <= - 90(2)<?在线公式描述=“在线公式”end =“ 尾部“?> <?in-line-formula description =”In-line Formulas“end =”lead“?> 8.2 + 30(C + N)+ 0.5Mn + Ni-1.1(1.5Si + Cr + Mo)+ 其中式(1),(2)和(3)中的每个元素符号表示式(1),(2)和(3)中的每个元素符号 钢中包含的每种元素的含量,质量%。

    Austenitic stainless steel for hydrogen gas and method for its manufacture
    8.
    发明申请
    Austenitic stainless steel for hydrogen gas and method for its manufacture 审中-公开
    用于氢气的奥氏体不锈钢及其制造方法

    公开(公告)号:US20060193743A1

    公开(公告)日:2006-08-31

    申请号:US11297418

    申请日:2005-12-09

    IPC分类号: C22C38/44

    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)<= 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。

    Stainless steel for high-pressure hydrogen gas
    9.
    发明授权
    Stainless steel for high-pressure hydrogen gas 有权
    不锈钢用于高压氢气

    公开(公告)号:US07749431B2

    公开(公告)日:2010-07-06

    申请号:US11108098

    申请日:2005-04-18

    IPC分类号: C22C38/58 C22C38/46

    摘要: A high-strength stainless steel, having good mechanical properties and corrosion resistance in a high-pressure hydrogen gas environment, is used as a container or other device for high-pressure hydrogen gas, and consists of, by mass %, C: not more than 0.04%, Si: not more than 1.0%, Mn: 7 to 30%, Cr: 15 to 22%, Ni: 5 to 20%, V: 0.001 to 1.0%, N: 0.20 to 0.50% and Al: not more than 0.10%, and the balance Fe and impurities. Among the impurities, P is not more than 0.030%, S is not more than 0.005%, and Ti, Zr and Hf are not more than 0.01% respectively, and the contents of Cr, Mn and N satisfy the relationship, 2.5Cr+3.4Mn≦300N. The weld metal of the welded joint of the container or other device made of the said stainless steel satisfies the relationship, −11≦Nieq−1.1×Creq≦−8.

    摘要翻译: 在高压氢气环境中具有良好的机械性能和耐腐蚀性的高强度不锈钢用作高压氢气的容器或其他装置,以质量%计不超过C: 不超过0.04%,Si:1.0%以下,Mn:7〜30%,Cr:15〜22%,Ni:5〜20%,V:0.001〜1.0%,N:0.20〜 超过0.10%,余量为Fe和杂质。 在杂质中,P不大于0.030%,S不大于0.005%,Ti,Zr和Hf分别不大于0.01%,Cr,Mn和N的含量满足2.5Cr + 3.4Mn&nlE; 300N。 由所述不锈钢制成的容器或其他装置的焊接接头的焊接金属满足以下关系:-11&nlE; Nieq-1.1×Creq&nlE; -8。

    LOW ALLOY STEEL FOR HIGH-PRESSURE HYDROGEN GAS ENVIRONMENT AND CONTAINER FOR HIGH-PRESSURE HYDROGEN
    10.
    发明申请
    LOW ALLOY STEEL FOR HIGH-PRESSURE HYDROGEN GAS ENVIRONMENT AND CONTAINER FOR HIGH-PRESSURE HYDROGEN 有权
    用于高压氢气环境的低合金钢和高压氢气的容器

    公开(公告)号:US20090285713A1

    公开(公告)日:2009-11-19

    申请号:US12470888

    申请日:2009-06-12

    摘要: Provided is a low alloy steel for high-pressure hydrogen gas environments, which contains, by mass percent, C: 0.15 to 0.60%, Si: 0.05 to 0.5%, Mn: 0.05 to 3.0%, P: not more than 0.025%, S: not more than 0.010%, Al: 0.005 to 0.10%, Mo: 0.5 to 3.0%, V: 0.05 to 0.30%, O (oxygen): not more than 0.01%, N: not more than 0.03%, and the balance Fe and impurities, and has tensile strength of not less than 900 MPa. This low alloy steel desirably contains B of 0.0003 to 0.003%, but in this case, N is limited to not more than 0.010%. It is desirable to contain at least one among Cr, Nb, Ti, Zr, and Ca. The contents of Mo and V desirably satisfy the following formula (1): [Mo(%)]·[V(%)]0.2≧0.32  (1).

    摘要翻译: 本发明提供一种高压氢气环境用低合金钢,以质量%计含有C:0.15〜0.60%,Si:0.05〜0.5%,Mn:0.05〜3.0%,P:0.025%以下, S:0.010%以下,Al:0.005〜0.10%,Mo:0.5〜3.0%,V:0.05〜0.30%,O(氧):0.01%以下,N:0.03以下, 平衡Fe和杂质,抗拉强度不低于900MPa。 该低合金钢理想地含有0.0003〜0.003%的B,但在这种情况下,将N限制在0.010%以下。 期望含有Cr,Nb,Ti,Zr和Ca中的至少一种。 Mo和V的含量优选满足下式(1):[Mo(%)]。[V(%)] 0.2> = 0.32(1)。