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1. 发明授权

EP1179380B1 MARTENSITE STAINLESS STEEL WELDED STEEL PIPE 有权
标题翻译：焊管马氏体不锈钢
公开(公告)号：EP1179380B1
公开(公告)日：2009-10-14
申请号：EP00950035.6
申请日：2000-08-07
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： KUSHIDA, Takahiro , OMURA, Tomohiko , KONDO, Kunio , OGAWA, Kazuhiro , HAMADA, Masahiko
IPC分类号： B23K9/02 , B23K9/23 , C22C38/00 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/50 , B23K35/30
CPC分类号： B23K9/23 , B23K9/0253 , B23K35/308 , B23K35/3086 , B23K2201/06 , C22C38/002 , C22C38/004 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/50 , Y10S148/909 , Y10T428/12958 , Y10T428/12979 , Y10T428/12986
摘要： A large-diameter, thick-walled martensite stainless steel welded steel pipe, wherein a protrusion of a weld bead at an inner seam of the pipe is limited in size based on a conditional expression involving bead width and height, and yield strengths of a base material and a weld metal, thereby providing an excellent corrosion resistance, especially a stress corrosion cracking resistance (SCC resistance) at an inner seam of the pipe. A proper selection of a chemical composition can further enhance corrosion resistance such as sulfide stress cracking resistance (sour resistance) and carbon dioxide corrosion resistance. This welded steel pipe is particularly suitable for a pipeline steel pipe for transporting crude oil, natural gas or the like that are strong in metal corroding action and omitted in dehydrating treating.

2. 发明公开

EP2511389A1 AUSTENITIC HEAT-RESISTANT ALLOY 有权转让
标题翻译： WÄRMEBESTÄNDIGEAUSTENITISCHE LEGIERUNG
公开(公告)号：EP2511389A1
公开(公告)日：2012-10-17
申请号：EP10835974.6
申请日：2010-12-08
申请人： Sumitomo Metal Industries, Ltd.
发明人： HIRATA, Hiroyuki , OKADA, Hirokazu , SEMBA, Hiroyuki , OGAWA, Kazuhiro , ISEDA, Atsuro , YOSHIZAWA, Mitsuru
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, and the contents of P and S in the impurities being P: 0.03% or less and S: 0.01% or less, wherein the alloy satisfies 1 ≤ 4xAl + 2xTi + Nb ≤ 12 and P + 0.2×Cr×B ≤ 0.035, is excellent in both of 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，杂质中P和S的含量为：0.03％以下，S：0.01％以下，其中合金满足1‰×4×Al + 2×Ti + Nb‰12，P + 0.2×Cr×B‰¤ 0.035，在焊接龟裂性和HAZ的韧性方面都优异，并且在高温下的蠕变强度更优异。

3. 发明公开

EP2048255A1 AUSTENITIC STAINLESS STEEL WELDED JOINT AND AUSTENITIC STAINLESS STEEL WELDING MATERIAL 有权
标题翻译：焊接奥氏体不锈钢焊接材料奥氏体不锈钢
公开(公告)号：EP2048255A1
公开(公告)日：2009-04-15
申请号：EP07791364.8
申请日：2007-07-26
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： OSUKI, Takahiro , OGAWA, Kazuhiro , OKADA, Hirokazu , IGARASHI, Masaaki
IPC分类号： C22C38/00 , B23K35/30 , C22C19/05 , B23K9/23 , B23K103/04
CPC分类号： C22C38/50 , B23K35/3053 , C22C19/05 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/48
摘要： An austenitic stainless steel welded joint, which comprises by mass%, C: 0.05 to 0.25%, Si: not more than 2%, Mn: 0.01 to 3%, P: 0.05 to 0.5%, S: not more than 0.03%, Cr: 15 to 30%, Ni: 6 to 55%, sol. Al: 0.001 to 0.1% and N: not more than 0.03%, with the balance being Fe and impurities, and satisfies the formula of (Cr + 1.5 × Si + 2 × P)/(Ni + 0.31 × Mn + 22 × + 14.2 × N + 5 × P) ≥ 1.388, has high creep strength, and moreover, is economical and excellent in weldability. Therefore, the said austenitic stainless steel welded joint can be widely applied as steel pipes, steel plates and so on in such fields where not only high-temperature strength and corrosion resistance but also weldability is required. Each element symbol in the above formula represents the content by mass percent of the element concerned.
摘要翻译：一种奥氏体系不锈钢焊接接头，其中以质量％计包含，C：0.05〜0.25％以下，Si：不超过2％以下，Mn：0.01〜3％，P：0.05〜0.5％，S：不大于0.03％，铬：铝6〜55％，溶胶：15〜30％的Ni 0001〜0.1％，N：不大于0.03％，余量为Fe和杂质，并且SATIS外资企业（CR + 1.5×Si的式 + 2×P）/（镍+锰+ 22××0时31分+ 14.2×N + 5×P）‰¥1.388，具有高的蠕变强度，并且更完了，是经济的和优良的焊接性。因此，上述奥氏体系不锈钢焊接接头可以用在这样不仅需要高温强度和耐腐蚀性，但可焊性搜索字段被广泛地应用于作为钢管，钢板等。上述式中的元素符号darstellt由元件关注的质量％的含量。

4. 发明公开

EP1179380A1 MARTENSITE STAINLESS STEEL WELDED STEEL PIPE 有权
标题翻译：焊管马氏体不锈钢
公开(公告)号：EP1179380A1
公开(公告)日：2002-02-13
申请号：EP00950035.6
申请日：2000-08-07
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： KUSHIDA, Takahiro , OMURA, Tomohiko , KONDO, Kunio , OGAWA, Kazuhiro , HAMADA, Masahiko
IPC分类号： B23K9/02 , B23K9/23
CPC分类号： B23K9/23 , B23K9/0253 , B23K35/308 , B23K35/3086 , B23K2201/06 , C22C38/002 , C22C38/004 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/50 , Y10S148/909 , Y10T428/12958 , Y10T428/12979 , Y10T428/12986
摘要： This invention relates to a large-diameter, thick-wall martensitic stainless steel welded pipe. For this welded pipe, the size of the raised weld bead portion on the inside surface is restricted to be small based on a conditional formula derived by considering the bead width and height and the yield strength of the base metal and of the weld metal. As a result, the base metal portion and pipe inside surface seam portion of this welded pipe are superior in corrosion resistance, in particular stress corrosion cracking resistance (SCC resistance). The sulfide stress corrosion resistance (sour gas resistance) and carbon dioxide corrosion resistance can be further improved by selecting the chemical compositions. This welded pipe is very well suited for use as a pipe for a pipeline for conveying a crude oil and a natural gas with no dehydration treatment, which is highly corrosive to metals.

5. 发明授权

EP0750053B1 DUPLEX STAINLESS STEEL EXCELLENT IN CORROSION RESISTANCE 失效
标题翻译：耐腐蚀性优良无缝不锈钢
公开(公告)号：EP0750053B1
公开(公告)日：2001-10-10
申请号：EP95940444.3
申请日：1995-12-14
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： AZUMA, Shigeki , OGAWA, Kazuhiro
IPC分类号： C22C38/42 , C22C38/46 , C22C38/48
CPC分类号： C22C38/42 , C22C38/58

6. 发明公开

EP0864663A1 HIGH-STRENGTH WELDED STEEL STRUCTURES HAVING EXCELLENT CORROSION RESISTANCE 失效
标题翻译： HCHFESTE，GESCHWEISSTE STAHLSTRUKTUREN MIT HERVORRAGENDEM KORROSIONSWIDERSTAND
公开(公告)号：EP0864663A1
公开(公告)日：1998-09-16
申请号：EP96932043.1
申请日：1996-09-27
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： UEDA, Masakatsu , OGAWA, Kazuhiro , KONDO, Kunio , IGARASHI, Masaaki
IPC分类号： C22C38/00 , C22C38/18 , C22C38/44 , C22C38/50 , B23K9/167 , B23K9/173
CPC分类号： B23K35/3086 , Y10T428/12965 , Y10T428/12979
摘要： High-strength welded steel structures having excellent SSC and corrosion resistances in a wet carbon dioxide environment having a low H 2 S concentration. (1) A structure having a Vickers hardness of at most 350 and a joint tensil strength of at least 620 Mpa and composed of a base metal comprising a martensitic stainless steel with a martensitic or tempered martensitic structure containing 0.001 to 0.05 % C and 9 to 14 % Cr and a weld metal comprising an austenitic-ferritic stainless steel having a duplex structure composed of austenite and 35 to 75 % by volume of ferrite and containing 22 to 27 % Cr, 7 to 11 % Ni and 1.5 to 5 % Mo, and at most 0.03 % C as an impurity. (2) Another structure according to the above item (1), wherein the base metal comprises the elements described in the above item (1) and further comprises Mn, Ni, sol. Al, Mo, Cu, Ti or the like, and Fe and the weld metal comprises the elements described in the above item (1) and further comprises sol. Al, N, Cu, W or the like, and Fe. (3) Still another structure according to the above item (2), wherein the content of C, Mn, Cr or the like of the base metal is further limited to a narrower range, and so is the content of Mn, Cu, W or the like.
摘要翻译：在具有低H2S浓度的湿二氧化碳环境中具有优异的SSC和耐腐蚀性的高强度焊接钢结构。（1）维氏硬度在350以下且结合张力强度为至少620Mpa的结构体，由含有马氏体或回火马氏体组织的马氏体系不锈钢构成，该马氏体系不锈钢含有0.001〜0.05％的C和9〜 14％Cr和包含由奥氏体和35〜75体积％铁素体组成的双相组织的奥氏体 - 铁素体不锈钢的焊接金属，含有22〜27％的Cr，7〜11％的Ni和1.5〜5％的Mo，和最多0.03％的C作为杂质。（2）根据上述（1）所述的另一种结构，其中所述贱金属包括上述（1）中所述的元素，并且还包含Mn，Ni，sol。 Al，Mo，Cu，Ti等，Fe和焊接金属包含上述（1）所述的元素，还含有溶胶。 Al，N，Cu，W等，Fe。（3）根据上述（2）所述的另一种结构，其中所述贱金属的C，Mn，Cr等的含量进一步限制在较窄的范围内，Mn，Cu，W的含量或类似物。

7. 发明公开

EP2476771A1 TWO-PHASE STAINLESS STEEL 有权转让
标题翻译：两相不锈钢
公开(公告)号：EP2476771A1
公开(公告)日：2012-07-18
申请号：EP10815306.5
申请日：2010-09-01
申请人： Sumitomo Metal Industries, Ltd.
发明人： AMAYA, Hisashi , TAKABE, Hideki , OGAWA, Kazuhiro
IPC分类号： C22C38/00 , C22C38/58
CPC分类号： C22C38/44 , C22C1/02 , C22C38/001 , C22C38/02 , C22C38/42 , C22C38/58
摘要： [Problem to be Solved]
To provide a duplex stainless steel excellent in the weldability during large heat input welding and excellent in the stress corrosion cracking resistance in a chloride environment containing corrosive associated gases.
[Solution]
A duplex stainless steel that has a chemical composition consisting, by mass%, of C: 0.03% or less, Si: 0.2 to 1%, Mn: 5.0% or less, P: 0.040% or less, S: 0.010% or less, sol. Al: 0.040% or less, Ni: 4 to 8%, Cr: 20 to 28%, Mo: 0.5 to 2.0%, Cu: more than 2.0% and 4.0% or less and N: 0.1 to 0.35%, and optionally contains one or more selected from among V, Ca, Mg, B and a rare earth metal(s), with the balance being Fe and impurities; wherein the duplex stainless steel satisfies the relations of the following formulas (1) and (2):

wherein the symbols of elements in formulas (1) and (2) respectively represent the contents (unit: mass%) of the elements in the steel.
摘要翻译： [要解决的问题]提供一种双相不锈钢，其在大的热输入焊接期间的焊接性优异，并且在含有腐蚀性伴生气体的氯化物环境中具有优异的抗应力腐蚀开裂性。 [解决方案]一种双相不锈钢，其特征在于，以质量％计含有C：0.03％以下，Si：0.2〜1％，Mn：5.0％以下，P：0.040％以下，S：0.010 ％或更少，sol。 Al：0.040％以下，Ni：4〜8％，Cr：20〜28％，Mo：0.5〜2.0％，Cu：超过2.0％且4.0％以下，N：0.1〜0.35％一种或多种选自V，Ca，Mg，B和一种或多种稀土金属，余量为Fe和杂质; 其中所述双相不锈钢满足下式（1）和（2）的关系：其中式（1）和（2）中的元素的符号分别表示钢中元素的含量（单位：质量％）。

8. 发明公开

EP1605073A1 HIGH-STRENGTH STAINLESS STEEL, CONTAINER AND HARDWARE MADE OF SUCH STEEL 有权
标题翻译：一个使用奥氏体不锈钢
公开(公告)号：EP1605073A1
公开(公告)日：2005-12-14
申请号：EP04722083.5
申请日：2004-03-19
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： IGARASHI, Masaaki , SEMBA, Hiroyuki , MIYAHARA, Mitsuo , OGAWA, Kazuhiro , OMURA, Tomohiko
IPC分类号： C22C38/00 , C22C38/58 , B23K35/30
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 excellent mechanical properties and corrosion resistance in high-pressure hydrogen gas environments is disclosed. A container for high-pressure hydrogen gas made of such a stainless steel is also disclosed. The stainless steel has a chemical composition comprising, in mass %, C: not more than 0.04%, Si: not more than 1.0%, Mn: 7-30%, Cr: 15-22%, Ni: 5-20%, V: 0.001-1.0%, N: 0.20-0.50%, Al: not more than 0.10%, and the balance: Fe and unavoidable impurities including not more than 0.030% of P, not more than 0.005% of S, and respectively not more than 0.01% of Ti, Zr and Hf. The contents of Cr, Mn and N satisfy the following relation: 2.5Cr + 3.4Mn ≦ 300N. A welded joint of a container for high-pressure hydrogen gas or a hardware which is made of this stainless steel is characterized in that the welded metal satisfies the following relation: -11 ≦ Nieq -1.1 × Creq ≦ -8.

9. 发明公开

EP2243591A1 WELDING MATERIAL AND WELDED JOINT STRUCTURES 审中-公开
标题翻译：维也纳技术研究所VERBINDUNGSSTRUKTUREN
公开(公告)号：EP2243591A1
公开(公告)日：2010-10-27
申请号：EP09703985.3
申请日：2009-01-23
申请人： Sumitomo Metal Industries, Ltd.
发明人： OSUKI, Takahiro , OGAWA, Kazuhiro , OKADA, Hirokazu
IPC分类号： B23K35/30 , B23K9/23 , C22C19/05 , C22C38/58
CPC分类号： C22C19/05 , B23K35/004 , B23K35/0261 , B23K35/30 , B23K35/304 , B23K35/3066 , B23K35/3086 , B23K35/40 , C21D8/065 , C21D9/525 , C21D2211/001 , C22C19/058 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/40 , C22C38/42 , C22C38/48 , C22C38/50 , Y10T428/12111 , Y10T428/12222 , Y10T428/12493 , Y10T428/12847 , Y10T428/12937 , Y10T428/12944 , Y10T428/12951 , Y10T428/12958 , Y10T428/12965 , Y10T428/12979
摘要： A welding material, to be used for welding a base metal made of an austenitic alloy comprising C ≤ 2.0%, Si ≤ 4.0%, Mn: 0.01 to 3.0%, P: more than 0.03% to not more 0.3%, S ≤ 0.03%, Cr: 12 to 35%, Ni: 6 to 80%, sol. Al: 0.001 to 1% and N ≤ 0.3%, with the balance being Fe and impurities to a base metal made of another austenitic alloy, which comprises C: more than 0.3% to 3.0%, Si ≤ 4.0%, Mn ≤ 3.0%, P ≤ 0.03%, S ≤ 0.03%, Cr: more than 22% to 55%, Ni: more than 30% to not more than 70%, sol. Al: 0.001 to 1% and N ≤ 0.3%, with the balance being Fe and impurities can suppress the weld solidification cracking which occurs in an austenitic alloy having a high P content and showing fully austenitic solidification. Therefore, the said welding material can be widely used in such fields where a welding fabrication is required. The said welding material may contain a specific amount or amounts of one or more elements selected from Cu, Mo, W, V, Nb, Ti, Ta, Zr, Hf, Co, B, Ca, Mg and REM.
摘要翻译：一种焊接材料，用于焊接由奥氏体合金制成的贱金属，其含量为2.0％，Si‰‰4.0％，Mn：0.01〜3.0％，P：0.03％以上0.3％以下，S ‰¤0.03％，Cr：12〜35％，Ni：6〜80％，sol。 Al：0.001〜1％，N‰0.3％，余量为由另一种奥氏体合金制成的贱金属的Fe和杂质，其中C：超过0.3％〜3.0％，Si‰‰4.0％，Mn‰ ¤3.0％，P‰0.03％，S‰0.03％，Cr：22％〜55％，Ni：30％以上，不超过70％。 Al：0.001〜1％，N≤0.3％，余量为Fe和杂质可以抑制在高P含量的奥氏体合金中发生的完全奥氏体凝固的焊接凝固裂纹。因此，所述焊接材料可以广泛地用于需要焊接加工的领域。所述焊接材料可以含有选自Cu，Mo，W，V，Nb，Ti，Ta，Zr，Hf，Co，B，Ca，Mg和REM中的一种或多种元素的特定量或量。

10. 发明公开

EP2199419A1 AUSTENITIC STAINLESS STEEL 有权转让
标题翻译：奥氏体不锈钢
公开(公告)号：EP2199419A1
公开(公告)日：2010-06-23
申请号：EP08836524.2
申请日：2008-10-02
申请人： Sumitomo Metal Industries, Ltd.
发明人： HIRATA, Hiroyuki , OGAWA, Kazuhiro , OSUKI, Takahiro , OKADA, Hirokazu , SEMBA, Hiroyuki
IPC分类号： C22C38/00 , C22C38/60
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：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％的奥氏体系不锈钢，sol 。 Al≤0.03％，还含有选自Nb≤1.0％，V≤0.5％和Ti≤0.5％中的一种或多种元素，余量为Fe和杂质，其中杂质P≤0.04％，S≤0.03％ Sn≤0.1％，As≤0.01％，Zn <0.01％，Pb≤0.01％，Sb≤0.01％，且满足条件P1 = S + {（P + Sn）/ 2} + {（As + Zn + Pb + Sb）/ 5）≤0.06和0.2≤P2= Nb + 2（V + Ti）≤1.7-10×P1具有高强度和优异的抗高温使用期间由于焊接部分的晶界脆化引起的开裂。因此，上述钢适合用作构筑长期高温使用的电厂锅炉等机械设备的材料。

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