公开(公告)号：US10266909B2

公开(公告)日：2019-04-23

申请号：US14007992

申请日：2012-03-19

申请人： Tomohiko Omura ,  Jun Nakamura ,  Hirokazu Okada ,  Hiroyuki Semba ,  Yusaku Tomio ,  Hiroyuki Hirata ,  Masaaki Igarashi ,  Kazuhiro Ogawa ,  Masaaki Terunuma

发明人： Tomohiko Omura ,  Jun Nakamura ,  Hirokazu Okada ,  Hiroyuki Semba ,  Yusaku Tomio ,  Hiroyuki Hirata ,  Masaaki Igarashi ,  Kazuhiro Ogawa ,  Masaaki Terunuma

IPC分类号： C21D9/46 ,  C22C38/00 ,  C22C38/02 ,  C22C38/06 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/58 ,  C22C38/52 ,  C22C38/54 ,  C21D6/00 ,  C21D8/02 ,  C21D1/26 ,  F16L9/02

摘要： There is provided an austenitic stainless steel for high-pressure hydrogen gas consisting, by mass percent, of C: 0.10% or less, Si: 1.0% or less, Mn: 3% or more to less than 7%, Cr: 15 to 30%, Ni: 10% or more to less than 17%, Al: 0.10% or less, N: 0.10 to 0.50%, and at least one kind of V: 0.01 to 1.0% and Nb: 0.01 to 0.50%, the balance being Fe and impurities, wherein in the impurities, the P content is 0.050% or less and the S content is 0.050% or less, the tensile strength is 800 MPa or higher, the grain size number (ASTM E112) is No. 8 or higher, and alloy carbo-nitrides having a maximum diameter of 50 to 1000 nm are contained in the number of 0.4/μm2 or larger in cross section observation.

公开(公告)号：US20140017111A1

公开(公告)日：2014-01-16

申请号：US14007992

申请日：2012-03-19

申请人： Tomohiko Omura ,  Jun Nakamura ,  Hirokazu Okada ,  Hiroyuki Semba ,  Yusabu Tomio ,  Hiroyuki Hirata ,  Masaaki Igarashi ,  Kazuhiro Ogawa ,  Masaaki Terunuma

发明人： Tomohiko Omura ,  Jun Nakamura ,  Hirokazu Okada ,  Hiroyuki Semba ,  Yusabu Tomio ,  Hiroyuki Hirata ,  Masaaki Igarashi ,  Kazuhiro Ogawa ,  Masaaki Terunuma

IPC分类号： C22C38/58 ,  C22C38/52 ,  C22C38/50 ,  C22C38/00 ,  C22C38/44 ,  C22C38/42 ,  C22C38/02 ,  C22C38/54 ,  C22C38/48

CPC分类号： C21D9/46 ,  C21D1/26 ,  C21D6/004 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0247 ,  C21D2211/001 ,  C21D2211/004 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/005 ,  C22C38/02 ,  C22C38/06 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/52 ,  C22C38/54 ,  C22C38/58 ,  F16L9/02

摘要： There is provided an austenitic stainless steel for high-pressure hydrogen gas consisting, by mass percent, of C: 0.10% or less, Si: 1.0% or less, Mn: 3% or more to less than 7%, Cr: 15 to 30%, Ni: 10% or more to less than 17%, Al: 0.10% or less, N: 0.10 to 0.50%, and at least one kind of V: 0.01 to 1.0% and Nb: 0.01 to 0.50%, the balance being Fe and impurities, wherein in the impurities, the P content is 0.050% or less and the S content is 0.050% or less, the tensile strength is 800 MPa or higher, the grain size number (ASTM E112) is No. 8 or higher, and alloy carbo-nitrides having a maximum diameter of 50 to 1000 nm are contained in the number of 0.4/μm2 or larger in cross section observation.

摘要翻译： 提供了一种用于高压氢气的奥氏体不锈钢，其质量百分比为C：0.10％以下，Si：1.0％以下，Mn：3％以上至小于7％，Cr：15〜 30％，Ni：10％以上至小于17％，Al：0.10％以下，N：0.10〜0.50％，V：0.01〜1.0％，Nb：0.01〜0.50％中的至少一种， 余量为Fe和杂质，其中在杂质中，P含量为0.050％以下，S含量为0.050％以下，拉伸强度为800MPa以上，粒径数（ASTM E112）为8 以上，截面观察中最大直径为50〜1000nm的合金碳氮化物的含量为0.4 / m 2以上。

公开(公告)号：US07531129B2

公开(公告)日：2009-05-12

申请号：US11108099

申请日：2005-04-18

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

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

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

CPC分类号： C22C38/18 ,  C22C38/001 ,  C22C38/02 ,  C22C38/06 ,  C22C38/46 ,  C22C38/58 ,  Y10T428/12979

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”？>

公开(公告)号：US20060191600A1

公开(公告)日：2006-08-31

申请号：US11297419

申请日：2005-12-09

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

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

IPC分类号： C23C8/10

CPC分类号： C22C38/40 ,  C21D1/76 ,  C21D6/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C23C8/18

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。

公开(公告)号：US20050178478A1

公开(公告)日：2005-08-18

申请号：US11108099

申请日：2005-04-18

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

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

IPC分类号： B23K35/30 ,  C22C38/00 ,  C22C38/18 ,  C22C38/46 ,  C22C38/58

CPC分类号： C22C38/18 ,  C22C38/001 ,  C22C38/02 ,  C22C38/06 ,  C22C38/46 ,  C22C38/58 ,  Y10T428/12979

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+3.4Mn≦500N  [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 + 3.4Mn <= 500N [1] <？in-line-formula description =“In-line Formulas”end = “尾巴”？

公开(公告)号：US07749431B2

公开(公告)日：2010-07-06

申请号：US11108098

申请日：2005-04-18

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

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

IPC分类号： C22C38/58 ,  C22C38/46

CPC分类号： C22C38/18 ,  B23K35/3086 ,  C22C38/001 ,  C22C38/02 ,  C22C38/06 ,  C22C38/46 ,  C22C38/58

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。

公开(公告)号：US20050178477A1

公开(公告)日：2005-08-18

申请号：US11108098

申请日：2005-04-18

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

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

IPC分类号： B23K35/30 ,  C22C38/18

CPC分类号： C22C38/18 ,  B23K35/3086 ,  C22C38/001 ,  C22C38/02 ,  C22C38/06 ,  C22C38/46 ,  C22C38/58

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。

公开(公告)号：US08808473B2

公开(公告)日：2014-08-19

申请号：US13472640

申请日：2012-05-16

申请人： Hiroyuki Hirata ,  Hirokazu Okada ,  Hiroyuki Semba ,  Kazuhiro Ogawa ,  Atsuro Iseda ,  Mitsuru Yoshizawa

发明人： Hiroyuki Hirata ,  Hirokazu Okada ,  Hiroyuki Semba ,  Kazuhiro Ogawa ,  Atsuro Iseda ,  Mitsuru Yoshizawa

IPC分类号： C22C19/05

CPC分类号： C22C19/055

摘要： An austenitic heat resistant alloy includes, by mass percent, C: 0.15% or less, Si: 2% or less, Mn: 3% or less, Ni: 40 to 60%, Co: 10.14 to 25%, Cr: 15% or more and less than 28%, either one or both of Mo: 12% or less and W: less than 0.05%, the total content thereof being 0.1 to 12%, Nd: 0.001 to 0.1%, B: 0.0005 to 0.006%, N: 0.03% or less, O: 0.03% or less, at least one selected from Al: 1.36% or less, Ti: 3% or less, and Nb: 3% or less, and the balance being Fe and impurities. The contents of P and S in the impurities are P: 0.03% or less and S: 0.01% or less. The alloy satisfies 1≦4×Al+2×Ti+Nb≦12 and P+0.2×Cr×B≦0.035, where an element in the Formulas represents the content by mass percent.

摘要翻译： 奥氏体系耐热合金的质量百分比含有：C：0.15％以下，Si：2％以下，Mn：3％以下，Ni：40〜60％，Co：10.14〜25％，Cr：15％ 以上且小于28％，Mo：12％以下，W：小于0.05％，其总含量为0.1〜12％，Nd：0.001〜0.1％，B：0.0005〜0.006％ ，N：0.03％以下，O：0.03％以下，Al：1.36％以下，Ti：3％以下，Nb：3％以下中的至少一种，余量为Fe和杂质。 杂质中P和S的含量为P：0.03％以下，S：0.01％以下。 合金满足1＆nlE; 4×Al + 2×Ti + Nb＆nlE; 12和P + 0.2×Cr×B＆nlE; 0.035，式中的元素表示质量百分含量。

公开(公告)号：US20120288400A1

公开(公告)日：2012-11-15

申请号：US13472640

申请日：2012-05-16

申请人： Hiroyuki Hirata ,  Hirokazu Okada ,  Hiroyuki Semba ,  Kazuhiro Ogawa ,  Atsuro Iseda ,  Mitsuru Yoshizawa

发明人： Hiroyuki Hirata ,  Hirokazu Okada ,  Hiroyuki Semba ,  Kazuhiro Ogawa ,  Atsuro Iseda ,  Mitsuru Yoshizawa

IPC分类号： C22C19/05

CPC分类号： C22C19/055

摘要： An austenitic heat resistant alloy consisting of, by mass percent, C: 0.15% or less, Si: 2% or less, Mn: 3% or less, Ni: 40 to 60%, Co: 0.03 to 25%, Cr: 15% or more and less than 28%, either one or both of Mo: 12% or less and W: less than 4%, the total content thereof being 0.1 to 12%, Nd: 0.001 to 0.1%, B: 0.0005 to 0.006%, N: 0.03% or less, O: 0.03% or less, at least one selected from Al: 3% or less, Ti: 3% or less, and Nb: 3% or less, the balance being Fe and impurities. The contents of P and S in the impurities being P: 0.03% or less and S: 0.01% or less. The alloy satisfies 1≦4×Al+2×Ti+Nb≦12 and P+0.2×Cr×B≦0.035, is excellent in weld crack resistance and toughness of HAZ, and is further excellent in creep strength at high temperatures.

摘要翻译： 一种奥氏体系耐热合金，以质量％计含有C：0.15％以下，Si：2％以下，Mn：3％以下，Ni：40〜60％，Co：0.03〜25％，Cr：15 ％以上且小于28％，Mo：12％以下，W：小于4％，其总含量为0.1〜12％，Nd：0.001〜0.1％，B：0.0005〜0.006 ％，N：0.03％以下，O：0.03％以下，选自Al：3％以下，Ti：3％以下，Nb：3％以下，余量为Fe和杂质中的至少一种。 杂质中P和S的含量为：0.03％以下，S：0.01％以下。 合金满足1＆nlE; 4×Al + 2×Ti + Nb＆nlE; 12和P + 0.2×Cr×B＆nlE; 0.035，HAZ的耐熔融裂纹性和韧性优异，并且在高温下的蠕变强度更优异。

公开(公告)号：US20100034689A1

公开(公告)日：2010-02-11

申请号：US12539026

申请日：2009-08-11

申请人： Hiroyuki Hirata ,  Kazuhiro Ogawa ,  Takahiro Osuki ,  Hirokazu Okada ,  Hiroyuki Semba

发明人： Hiroyuki Hirata ,  Kazuhiro Ogawa ,  Takahiro Osuki ,  Hirokazu Okada ,  Hiroyuki Semba

IPC分类号： C22C38/60 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54

CPC分类号： C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/52 ,  C22C38/54

摘要： An austenitic stainless steel, which comprises by mass %, C: 0.04 to 0.18%, Si≦1.5%, Mn≦2.0%, Ni: 6 to 30%, Cr: 15 to 30%, N: 0.03 to 0.35%, sol. Al≦0.03% and further contains one or more elements selected from Nb≦1.0%, V≦0.5% and Ti≦0.5%, with the balance being Fe and impurities, and among the impurities P≦0.04%, S≦0.03%, Sn≦0.1%, As≦0.01%, Zn≦0.01%, Pb≦0.01% and Sb≦0.01%, and satisfy the conditions P1=S+{(P+Sn)/2}+{(As+Zn+Pb+Sb)/5}≦0.06 and 0.2≦P2=Nb+2(V+Ti)≦1.7−10×P1 has high strength and excellent resistance to cracking due to grain boundary embrittlement in the welded portion during the use at high temperatures. Therefore, the said steel can be suitably used as materials for constructing machines and equipment, such as power plant boilers, which are to be used at high temperatures for a long period of time.

摘要翻译： 奥氏体系不锈钢以质量％计含有C：0.04〜0.18％，Si≤1.5％，Mn≤2.0％，Ni：6〜30％，Cr：15〜30％，N：0.03〜0.35％ ，溶胶 Al≤0.03％，进一步含有选自Nb <= 1.0％，V <= 0.5％和Ti <= 0.5％的一种或多种元素，余量为Fe和杂质，杂质P <= 0.04％ S <= 0.03％，Sn <= 0.1％，As <= 0.01％，Zn <= 0.01％，Pb <= 0.01％，Sb <= 0.01％，满足条件P1 = S + {（P + Sn）/ 2} + {（As + Zn + Pb + Sb）/ 5} <= 0.06和0.2 <= P2 = Nb + 2（V + Ti）<= 1.7-10xP1具有高强度和优异的耐晶界破裂性 在高温使用期间焊接部分的脆化。 因此，所述钢可以适合用作长时间在高温下使用的电厂锅炉等机器设备的构成材料。