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1. 发明授权

EP1275744B1 HEAT-RESISTANT MARTENSITE ALLOY EXCELLENT IN HIGH-TEMPERATURE CREEP RAPTURE STRENGTH AND DUCTILITY AND PROCESS FOR PRODUCING THE SAME 有权
标题翻译：用的优秀表现持续时间和稳定性的延展性和工艺耐热合金马氏体
公开(公告)号：EP1275744B1
公开(公告)日：2008-12-31
申请号：EP02711262.2
申请日：2002-01-31
申请人： National Institute for Materials Science , SUMITOMO METAL INDUSTRIES, LTD. , Hitachi, Ltd.
发明人： HORIUCHI, Toshiaki, Nat.Inst.For Materials Science , IGARASHI, Masaaki, Sumitomo Metal Industries, Ltd. , ABE, Fujio, Nat.Inst.For Materials Science
IPC分类号： C22C38/00 , C22C38/32 , C22C38/54 , C21D6/00
CPC分类号： C22C38/26 , C21D6/002 , C21D2211/008 , C22C38/02 , C22C38/04 , C22C38/22 , C22C38/24 , C22C38/30 , C22C38/32
摘要： A heat-resistant martensite alloy in which (A) the composition consists of 0.03 to 0.15 wt.% carbon, 0.01 to 0.9 wt.% silicon, 0.01 to 1.5 wt.% manganese, 8.0 to 13.0 wt.% chromium, 0.0005 to 0.015 wt.% aluminum, up to 2.0 wt.% molybdenum, up to 4.0 wt.% tungsten, 0.05 to 0.5 wt.% vanadium, 0.01 to 0.2 wt.% niobium, 0.1 to 5.0 wt.% cobalt, 0.008 to 0.03 wt.% boron, below 0.005 wt.% nitrogen, and iron and unavoidable impurities as the remainder and (B) the contents of molybdenum, tungsten, boron, and nitrogen in terms of wt.% satisfy the following relationships (1) and (2). B - 0.772N > 0.007 (1) W + 1.916Mo - 16.99B > 2.0 (2) The heat-resistant martensite alloy is excellent not only in oxidation resistance but in suitability for hot processing and ductility, and further has a high creep rapture strength in a longer-time range at a high temperature.

2. 发明公开

EP1873270A1 LOW ALLOY STEEL 有权
标题翻译：低合金钢
公开(公告)号：EP1873270A1
公开(公告)日：2008-01-02
申请号：EP06745409.0
申请日：2006-04-17
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： IGARASHI, Masaaki, Sumitomo Metal Industries, Ltd. , KAWANO, Kaori, Sumitomo Metal Industries, Ltd.
IPC分类号： C22C38/00 , C22C38/32 , C22C38/54
CPC分类号： C22C38/22 , C22C38/02 , C22C38/04 , C22C38/24
摘要： A low alloy steel for a heat-resisting structural member being improved in long time creep ductility at high temperatures and temper softening resistance, characterized by comprising, by mass percent, C: 0.03 to 0.10%, Si: not more than 0.30%, Mn: not more than 1.0%, Cr: more than 1.5% to not more than 2.5%, Mo: 0.01 to 1.0%, V: 0.04 to 0.30%, Nb: 0.001 to 0.10%, Ti: 0.001 to 0.020%, B: 0.0001 to 0.020%, Al: 0.001 to 0.01% and Nd: 0.0001 to 0.050%, with the balance being Fe and impurities, wherein the content of P is not more than 0.020%, the content of S is not more than 0.003%, the content of N is less than 0.0050% and the content of O (oxygen) is not more than 0.0050% among the impurities, in which the value of BSO represented by the following formula (1) is 0.0001 to 0.010: BSO = B - ( 11 / 14 ) N - ( 11 / 32 ) S - ( 11 / 16 ) O
wherein each element symbol in the formula (1) represents the content (by mass %) of the element concerned. The steel may further contain one or more element selected from among W, Cu, Ni, Co, Mg, Ca, La, Ce, Y, Sm and Pr.
摘要翻译：一种用于耐热构件的低合金钢，其在高温下的长时间蠕变延展性和抗回火软化性得到改善，其特征在于以质量百分比计含有C：0.03-0.10％，Si：不大于0.30％，Mn ：1.0％以下，Cr：超过1.5％且不超过2.5％，Mo：0.01〜1.0％，V：0.04〜0.30％，Nb：0.001〜0.10％，Ti：0.001〜0.020％，B： 0.0001〜0.020％，Al：0.001〜0.01％，Nd：0.0001〜0.050％，其余为Fe和杂质，P含量为0.020％以下，S含量为0.003％在下述式（1）所示的BSO的值为0.0001〜0.010的杂质中，N的含量小于0.0050％，O（氧）的含量为0.0050％以下。BSO = B- （11/14）N-（11/32）S-（11/16）O式（1）中的各元素符号表示相关元素的含量（以质量％计）。该钢还可以含有选自W，Cu，Ni，Co，Mg，Ca，La，Ce，Y，Sm和Pr中的一种或多种元素。

3. 发明公开

EP1275744A1 HEAT-RESISTANT MARTENSITE ALLOY EXCELLENT IN HIGH-TEMPERATURE CREEP RAPTURE STRENGTH AND DUCTILITY AND PROCESS FOR PRODUCING THE SAME 有权
标题翻译：用的优秀表现持续时间和稳定性的延展性和工艺耐热合金马氏体
公开(公告)号：EP1275744A1
公开(公告)日：2003-01-15
申请号：EP02711262.2
申请日：2002-01-31
申请人： National Institute for Materials Science , SUMITOMO METAL INDUSTRIES, LTD. , Hitachi, Ltd.
发明人： HORIUCHI, Toshiaki, Nat.Inst.For Materials Science , IGARASHI, Masaaki, Sumitomo Metal Industries, Ltd. , ABE, Fujio, Nat.Inst.For Materials Science
IPC分类号： C22C38/00 , C22C38/32 , C22C38/54 , C21D6/00
CPC分类号： C22C38/26 , C21D6/002 , C21D2211/008 , C22C38/02 , C22C38/04 , C22C38/22 , C22C38/24 , C22C38/30 , C22C38/32
摘要： The present invention provides a martensitic heat resistant alloy having a composition (A) comprising, % by weight: 0.03 to 0.15% of C; 0.01 to 0.9% of Si; 0.01 to 1.5% of Mn; 8.0 to 13.0% of Cr; 0.0005 to 0.015% of Al; no more than 2.0% of Mo; no more than 4.0% of W; 0.05 to 0.5% of V; 0.01 to 0.2% of Nb; 0.1 to 5.0% of Co; 0.008 to 0.03% of B; less than 0.005% of N: and Fe and inevitable impurities as the remainder, wherein (B) the contents (% by weight) of Mo, W, B and N satisfy the following formulae (1) and (2). B - 0.772N > 0.007 W + 1.916Mo - 16.99B > 2.0
The martensitic heat resistant alloy of the present invention has excellent oxidation resistance, hot workability and ductility and exhibits high creep rupture strength in a range of relatively long rupture time at a high temperature.
摘要翻译：本发明提供了具有组合物（A），其包含一种马氏体耐热合金，以重量％计：0.03〜0.15％的C; 00:01于Si的0.9％; 00:01与Mn的1.5％; 8.0对Cr的13.0％; 0.0005至的Al 0.015％; 不超过沫的2.0％; 不超过W的4.0％; 0点05到V的0.5％; 00:01与Nb为0.2％; 0.1对Co的5.0％; 0008〜00：03％的B; 的N，以及Fe和不可避免的杂质小于0.005％：作为剩余部分，worin（B）的Mo，W，B的含量（重量％）和N满足下式餐饮（1）和（2）。 <= DF NUM “（1）”>乙 - = 0.772N> 0007 W + 1.916Mo - 16.99B> 2.0 的马氏体耐热的合金本发明具有优良的抗氧化性，热加工性和延性和表现出高的蠕变断裂强度的范围内的相对长的断裂时间在高温下。

4. 发明授权

EP1873270B1 LOW ALLOY STEEL 有权
标题翻译：低合金钢
公开(公告)号：EP1873270B1
公开(公告)日：2012-05-30
申请号：EP06745409.0
申请日：2006-04-17
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： IGARASHI, Masaaki, Sumitomo Metal Industries, Ltd. , KAWANO, Kaori, Sumitomo Metal Industries, Ltd.
IPC分类号： C22C38/00 , C22C38/32 , C22C38/54
CPC分类号： C22C38/22 , C22C38/02 , C22C38/04 , C22C38/24
摘要： A low alloy steel for a heat-resistant structure member being improved in high-temperature long-time creep ductility and temper softening resistance, characterized in that it comprises 0.03 to 0.10 mass% of C, 0.30 mass% or less of Si, 1.0 mass% or less of Mn, more than 1.5 mass% and not more than 2.5 mass% of Cr, 0.01 to 1.0 mass% of Mo, 0.04 to 0.30 mass% of V, 0.001 to 0.10 mass% of Nb, 0.001 to 0.020 mass% of Ti, 0.0001 to 0.020 mass% of B, 0.001 to 0.01 mass% of Al, 0.0001 to 0.05 mass% of Nd and the balance comprising Fe and impurities, the impurities include 0.020 mass% or less of P, 0.03 mass% or less of S, less than 0.0050 mass% of N and 0.0050 mass% or less of O(oxygen), and a value of BSO represented by the following formula (1) is 0.0001 to 0.010; BSO = B - (11/14)N - (11/32)S - (11/16)O ---- (1) where the symbol of an element in the formula (1) represents the content (mass %) of the element. The steel may further contain one or more of W, Cu, Ni, Co, Mg, Ca, La, Ce, Y, Sm and Pr.

5. 发明公开

EP1403391A1 MARTENSITIC STAINLESS STEEL 有权
标题翻译：马氏体不锈钢
公开(公告)号：EP1403391A1
公开(公告)日：2004-03-31
申请号：EP02728217.7
申请日：2002-05-31
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： KONDO, Kunio, Sumitomo Metal Industries, Ltd. , KUSHIDA, Takahiro, Sumitomo Metal Industries, Ltd. , KOMIZO, Yuichi, Sumitomo Metal Industries, Ltd. , IGARASHI, Masaaki, Sumitomo Metal Industries, Ltd.
IPC分类号： C22C38/00
CPC分类号： C22C38/44 , C21D8/005 , C21D8/0263 , C21D2211/008 , C22C38/42 , C22C38/46
摘要： A martensitic stainless steel having a C content of 0.01 to 0.1 mass %, a Cr content of 9 to 15 mass % and a N content of not more than 0.1 mass %, wherein the content of carbides inside old austenite grain boundaries in the steel is not more than 0.5 volume %, or wherein the maximum length of the carbides in the steel is 10 to 200 nm in the direction of the minor axis, or wherein the ratio ([Cr]/[Fe]) of the average Cr concentration [Cr] to the average Fe concentration [Fe] in carbides in the steel is not more than 0.4, or wherein the content of M 23 C 6 type carbides is not more than 1 volume %, the content of M 3 C type carbides is 0.01 to 1.5 volume % and the content of MN type or M 2 N type nitrides is not more than 0.3 volume % is provided. This stainless steel has a high toughness in spite of both a relatively more C content and a high strength, thereby providing a wide applicability to pipe material for oil wells containing carbon dioxide and a very small amount of hydrogen sulfide, in particular for oil wells having a much greater depth.
摘要翻译： 1。一种马氏体系不锈钢，其中，C含量为0.01〜0.1质量％，Cr含量为9〜15质量％，N含量为0.1质量％以下，其中钢中的旧奥氏体晶界内的碳化物含量为不超过0.5体积％，或者其中钢中碳化物的最大长度在短轴方向上为10至200nm，或者其中平均Cr浓度的比率[（Cr）/ [Fe] Cr]与钢中碳化物中的平均Fe浓度[Fe]之比不大于0.4，或其中M23C6型碳化物的含量不大于1体积％，M3C型碳化物的含量为0.01-1.5体积％和提供MN型或M2N型氮化物的含量不超过0.3体积％。尽管C含量和强度都较高，但这种不锈钢具有高韧性，因此对含有二氧化碳和极少量硫化氢的油井的管道材料提供了广泛的适用性，特别是对于具有更深入。

6. 发明授权

EP1446512B1 MARTENSITIC STAINLESS STEEL AND METHOD FOR MANUFACTURING SAME 有权
标题翻译：马氏体不锈钢及其制造方法
公开(公告)号：EP1446512B1
公开(公告)日：2008-06-04
申请号：EP02801999.0
申请日：2002-10-04
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： YOSHIZAWA, Mitsuru Sumitomo Metal Industries, Ltd. , KONDO, Kunio c/o Sumitomo Metal Industries, Ltd. , IGARASHI, Masaaki, Sumitomo Metal Industries, Ltd. , KOMIZO, Yuichi c/o Sumitomo Metal Industries, Ltd.
IPC分类号： C22C38/18 , C22C38/40 , C21D6/00
CPC分类号： C22C38/02 , C21D1/19 , C21D1/84 , C21D6/002 , C21D2211/001 , C21D2211/008 , C22C38/002 , C22C38/04 , C22C38/40 , C22C38/42 , C22C38/44 , C22C38/46
摘要： A martensitic stainless steel provided includes C: 0.01 - 0.1% and Cr: 9 - 15%, and the retained austenite phase has a thickness not more than 100 nm in such a manner that the X-ray integral intensities of 111gamma and 110alpha satisfy the formula (a): 0.005 3

7. 发明公开

EP1867743A1 AUSTENITIC STAINLESS STEEL 有权
标题翻译：奥氏体不锈钢
公开(公告)号：EP1867743A1
公开(公告)日：2007-12-19
申请号：EP06730842.9
申请日：2006-03-31
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： NOGUCHI, Yasutaka, Sumitomo Metal Industries, Ltd. , OGAWA, Kazuhiro, Sumitomo Metal Industries, Ltd. , IGARASHI, Masaaki, Sumitomo Metal Industries, Ltd. , OKADA, Hirokazu, Sumitomo Metal Industries, Ltd.
IPC分类号： C22C38/00
CPC分类号： C22C38/50 , C21D6/004 , C21D7/13 , C21D2211/001 , C21D2211/004 , C22C38/001 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , F28F21/083
摘要： An austenitic stainless steel improved in creep strength, creep ductility, weldability and also hot workability. The steel, consisting of, by mass %, C: 0.05-0.15 %, Si: not more than 2 %, Mn: 0.1-3%, P: 0.05-0.30 %, S: not more than 0.03 %, Cr: 15-28 %, Ni: 8-55 %, Cu: 0-3.0 %, Ti: 0.05-0.6 %, REM: 0.001-0.5 %, sol. Al: 0.001-0.1%, N: not more than 0.03 %, and the balance being Fe and incidental impurities. This steel may contain one or more of Mo, W, B, Nb, V, Co, Zr, Hf, Ta, Mg and Ca. It is preferable that REM is Nd.
摘要翻译：奥氏体不锈钢的蠕变强度，蠕变延展性，可焊性以及热加工性均有所提高。以质量％计含有C：0.05〜0.15％，Si：2％以下，Mn：0.1〜3％，P：0.05〜0.30％，S：0.03％以下，Cr：15 -28％，Ni：8-55％，Cu：0-3.0％，Ti：0.05-0.6％，REM：0.001-0.5％，溶胶。 Al：0.001-0.1％，N：不超过0.03％，其余为Fe和不可避免的杂质。该钢可含有Mo，W，B，Nb，V，Co，Zr，Hf，Ta，Mg和Ca中的一种或多种。 REM优选为Nd。

8. 发明授权

EP1403391B1 MARTENSITIC STAINLESS STEEL 有权
标题翻译：马氏体不锈钢
公开(公告)号：EP1403391B1
公开(公告)日：2006-10-25
申请号：EP02728217.7
申请日：2002-05-31
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： KONDO, Kunio, Sumitomo Metal Industries, Ltd. , KUSHIDA, Takahiro, Sumitomo Metal Industries, Ltd. , KOMIZO, Yuichi, Sumitomo Metal Industries, Ltd. , IGARASHI, Masaaki, Sumitomo Metal Industries, Ltd.
IPC分类号： C22C38/00 , C22C38/40 , C22C38/46 , C22C38/54
CPC分类号： C22C38/44 , C21D8/005 , C21D8/0263 , C21D2211/008 , C22C38/42 , C22C38/46
摘要： A martensitic stainless steel which comprises, in mass %, 0.01 to 0.1 % of C, 9 to 15 % of Cr, 0.1 % or less of N, wherein it contains carbides present in old austenite grain boundaries in an amount of 0.5 vol % or less, or wherein carbides contained therein have a maximum short diameter of 10 to 200 nm, or wherein carbides contained therein have a ratio of an average Cr concentration to an average Fe concentration of 0.4 or less, or wherein it contains carbides of M 23 C 6 type in an amount of 1 vol % or less, carbides of M 3 C type in an amount of 0.01 to 1.5 vol %, and nitrides of MN type or M 2 N type in an amount of 0.3 vol % or less. The martensitic stainless steel has a relatively high Cr content resulting in high strength, and also exhibits improved toughness, and accordingly has a wide range of applications including those for an oil well containing carbon dioxide and a small amount of hydrogen sulfide, in particular, an oil well pipe for a greatly deep oil well.

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