公开(公告)号：US5824264A

公开(公告)日：1998-10-20

申请号：US686397

申请日：1996-07-25

申请人： Hideki Uno ,  Yoshitaka Nishiyama ,  Yoshiatsu Sawaragi ,  Nobuo Otsuka ,  Kazuhiro Ogawa ,  Toshiro Anraku

发明人： Hideki Uno ,  Yoshitaka Nishiyama ,  Yoshiatsu Sawaragi ,  Nobuo Otsuka ,  Kazuhiro Ogawa ,  Toshiro Anraku

IPC分类号： C22C38/54 ,  C22C38/40

CPC分类号： C22C38/54

摘要： A high-temperature austenitic stainless steel having improved weldability is disclosed. The steel consists essentially, by weight, of: C: 0.05%-0.15%, Si: less than 1.0%, Mn: 2.0% or less, P: 0.04% or less, S: 0.01% or less, Cr: 20%-30%, Ni: 10%-15%, N: 0.10%-0.30%, B: 0.0010%-0.01%, one or two of La and Ce: 0.01%-0.10% in total, Al: 0.01%-0.20%, and a balance of Fe and incidental impurities, wherein the contents of N and Al satisfy the following inequality: % N+2.times.% Al.ltoreq.0.500% and the value for Ni balance (Ni bal.) of the steel calculated by the following formula is in the range of from -1.0% to +3.0%: Ni bal. (%)=% Ni+0.5.times.% Mn+30.times.(% C+% N)-1.1.times.(% Cr+1.5.times.% Si)+8.2.

摘要翻译： 公开了具有改进的可焊性的高温奥氏体不锈钢。 钢主要由以下组成：C：0.05％-0.15％，Si：小于1.0％，Mn：2.0％以下，P：0.04％以下，S：0.01％以下，Cr：20％ -30％，Ni：10％-15％，N：0.10％-0.30％，B：0.0010％-0.01％，La和Ce中的一种或两种：总计0.01％-0.10％，Al：0.01％-0.20 ％，余量为Fe和杂质，其中N和Al的含量满足以下不等式：％N + 2x％Al

公开(公告)号：US06458318B1

公开(公告)日：2002-10-01

申请号：US09606151

申请日：2000-06-29

申请人： Yoshitaka Nishiyama ,  Toshiro Anraku ,  Yoshiatsu Sawaragi ,  Kazuhiro Ogawa ,  Hirokazu Okada

发明人： Yoshitaka Nishiyama ,  Toshiro Anraku ,  Yoshiatsu Sawaragi ,  Kazuhiro Ogawa ,  Hirokazu Okada

IPC分类号： C22C1905

CPC分类号： C22C19/055 ,  C22C19/056

摘要： A heat resistant Ni base alloy comprises, on a mass% basis, 0.1% or less C, 2% or less Si, 2% or less Mn, 0.005% or less S, 10 to 25% Cr, 2.1 to less than 4.5% Al, 0.08% or less N, 0.001 to 1% in total of one or more elements of B: 0.03% or less, Zr: 0.2% or less and Hf: 0.8% or less, and 2.5 to 15% in total of one or more elements of Mo: 0.01 to 15% and W: 0.01 to 9%. The alloy is suitable as a material for a pipe used in ethylene cracking furnace.

摘要翻译： 耐热Ni基合金以质量％计含有0.1％以下的C，2％以下的Si，2％以下的Mn，0.005％以下的S，10〜25％的Cr，2.1以上且小于4.5％ Al，0.08％以下N，B：0.03％以下的一种以上的元素的总计为0.001〜1％，Zr：0.2％以下，Hf：0.8％以下，总计2.5〜15％ 或更多的Mo元素：0.01〜15％，W：0.01〜9％。 该合金适用于乙烯裂解炉用管材料。

公开(公告)号：US4842823A

公开(公告)日：1989-06-27

申请号：US85198

申请日：1987-08-14

申请人： Yoshiatsu Sawaragi ,  Kunihiko Yoshikawa ,  Hiroshi Teranishi

发明人： Yoshiatsu Sawaragi ,  Kunihiko Yoshikawa ,  Hiroshi Teranishi

IPC分类号： C22C38/00 ,  C22C19/05 ,  C22C30/00

CPC分类号： C22C30/00

摘要： An austenitic steel having improved high-temperature strength as well as corrosion resistance is disclosed. The steel consists essentially of, by weight %:C: not more than 0.15%, Si: not more than 1.0%,Mn: not more than 10%, Cr: 20-30%,Ni: 30-55%,at least one of Mg and Ca in a total amount of 0.0010-0.0500%,Mo: 0.5-6.0% and/or W: 1.0-12.0%, whereinMo(%)+1/2W(%)=0.5-6.0(%),B: 0-0.0100%, Zr: 0-0.200%,Ti: 0-0.30%, Nb: 0-1.00%,V: 0-1.00%, andbalance: Fe and incidental impurities, of which impurities P, S, and Al are restricted to:P: not more than 0.020%,S: not more than 0.010%, andAl: not more than 0.030%,P (%)+S (%)+Al (%) being less than 0.050%.

摘要翻译： 公开了一种具有改善的高温强度和耐腐蚀性的奥氏体钢。 该钢主要由重量％组成：C：不大于0.15％，Si：不大于1.0％，Mn：不大于10％，Cr：20-30％，Ni：30-55％，至少 总量为0.0010-0.0500％的Mg和Ca中的一种，Mo：0.5-6.0％和/或W：1.0-12.0％，其中Mo（％）+ 1 / 2W（％）= 0.5-6.0（％） ，B：0-0.0100％，Zr：0-0.200％，Ti：0-0.30％，Nb：0-1.00％，V：0-1.00％，余量：Fe和杂质，杂质P，S ，Al限制在：P：0.020％以下，S：0.010％以下，Al：0.030％以下，P（％）+ S（％）+ Al（％）小于0.050 ％。

公开(公告)号：US5626817A

公开(公告)日：1997-05-06

申请号：US494736

申请日：1995-06-26

申请人： Yoshiatsu Sawaragi ,  Hiroyuki Senba

发明人： Yoshiatsu Sawaragi ,  Hiroyuki Senba

IPC分类号： C22C38/00 ,  C22C38/42 ,  C22C38/48 ,  C22C38/54

CPC分类号： C22C38/48 ,  C22C38/42

摘要： A heat resistant austenitic stainless steel having high strength at elevated temperatures. The steel consists of 0.05 to 0.15% carbon, not more than 0.5% silicon, 0.05 to 0.50% manganese, 17 to 25% chromium, 7 to 20% nickel, 2.0 to 4.5% copper, 0.10 to 0.80% niobium, 0.001 to 0.010% boron, 0.05 to 0.25% nitrogen, 0.003 to 0.030% sol.aluminum, 0 to 0.015% magnesium and the balance being iron and incidental impurities. The steel may contain 0.3 to 2.0% molybdenum and/or 0.5-4.0% tungsten. The steel exhibits high creep rupture strength at elevated temperatures for long periods of time, and can be produced at low cost. The steel is suitable for use in the structural members for boilers, chemical plants and other installations operated in a high temperature environment.

摘要翻译： 在高温下具有高强度的耐热奥氏体不锈钢。 该钢由0.05〜0.15％的碳，不超过0.5％的硅，0.05〜0.50％的锰，17〜25％的铬，7〜20％的镍，2.0〜4.5％的铜，0.10〜0.80％的铌，0.001〜0.010 ％硼，0.05-0.25％氮，0.003-0.030％溶胶铝，0-0.015％镁，余量是铁和杂质。 钢可含有0.3〜2.0％的钼和/或0.5-4.0％的钨。 钢在长时间高温下表现出较高的蠕变断裂强度，可以低成本生产。 该钢适用于在高温环境下运行的锅炉，化工厂和其他设备的结构件。

公开(公告)号：US5407635A

公开(公告)日：1995-04-18

申请号：US30542

申请日：1993-03-12

申请人： Atsuro Iseda ,  Yoshiatsu Sawaragi ,  Fujimitsu Masuyama ,  Tomomitsu Yokoyama

发明人： Atsuro Iseda ,  Yoshiatsu Sawaragi ,  Fujimitsu Masuyama ,  Tomomitsu Yokoyama

IPC分类号： C22C38/00 ,  C22C38/44 ,  C22C38/54 ,  C22C38/26 ,  C22C38/28

CPC分类号： C22C38/44 ,  C22C38/54

摘要： A low-Cr ferritic steel with improved toughness as well as creep strength is disclosed, which consists essentially of, by weight %:C: 0.03-0.12%, Si: 0.70% or less, Mn: 0.10-1.50%,Ni: 2.0% or less, Cr: 1.50-3.50%, W: 1.0-3.0%,V: 0.10-0.35%, Nb: 0.01-0.10%,B: 0.00010-0.020%, N: 0.005% or less,Al: 0.005% or less,Ti: not less than 0.001% but less than 0.05%,Cu: 0.10-2.50%,at least one of La, Ce, Y, Ca, Zr, Ta each in an amount of 0-0.20%, and Mg in an amount of 0-0.05%,Mo in an amount of 0-0.40%, anda balance of Fe and incidental impurities including P: not more than 0.030% and S: not more than 0.015%.

摘要翻译： 公开了具有改进的韧性和蠕变强度的低Cr铁素体钢，其基本上由重量％组成：C：0.03-0.12％，Si：0.70％以下，Mn：0.10-1.50％，Ni：2.0 ％以下，Cr：1.50〜3.50％，W：1.0〜3.0％，V：0.10〜0.35％，Nb：0.01-0.10％，B：0.00010〜0.020％，N：0.005％以下，Al：0.005％ 以下，Ti：0.001％以上且0.05％以下，Cu：0.10〜2.50％，La，Ce，Y，Ca，Zr，Ta中的至少一种为0〜0.20％ 其量为0-0.05％，Mo为0-0.40％，Fe和杂质的余量包括P：不大于0.030％，S：不大于0.015％。

公开(公告)号：US5211911A

公开(公告)日：1993-05-18

申请号：US848026

申请日：1992-03-09

申请人： Yozo Hayase ,  Yoshiatsu Sawaragi ,  Shigemitsu Kihara ,  Wate T. Bakker

发明人： Yozo Hayase ,  Yoshiatsu Sawaragi ,  Shigemitsu Kihara ,  Wate T. Bakker

IPC分类号： C22C19/05 ,  C22C30/00 ,  F28F21/08

CPC分类号： F28F21/087 ,  C22C30/00

摘要： High-vanadium austenitic alloys, which are structurally stable and have improved corrosion resistance in wet corrosive environments and high-temperature corrosion resistance in reducing atmosphere, contain Ni by 33.0 to 60.0 weight %, Cr by 23.0 to 28.0 weight %, V by 2.4 to 5.0 weight %, C by 0.10 weight % or less, N by 0.05 weight % or less, Si by 0.35% weight % or less, Al by 0.5 weight % or less, Mn by 1.5% weight % or less, P by 0.020 weight % or less, S by 0.005 weight % or less, and one or more selected from the group consisting of B by 0.0010 to 0.010 weight %, Zr by 0.010 to 0.06 weight %, Ti by 0.03 to 0.50% weight %, and Nb by 0.05 to 1.0 weight %, the balance being Fe and impurities.

摘要翻译： 结构稳定，耐湿腐蚀环境下耐蚀性提高，还原气氛耐高温腐蚀性高的钒奥氏体合金，含有33.0〜60.0重量％的Cr，23.0〜28.0重量％，V：2.4〜 5.0重量％，C：0.10重量％以下，N：0.05重量％以下，Si：0.35重量％以下，Al：0.5重量％以下，Mn：1.5重量％以下，P：0.020重量％ ％以下，S：0.005重量％以下，以及选自B：0.0010〜0.010重量％，Zr：0.010〜0.06重量％，Ti：0.03〜0.50重量％，Nb： 0.05〜1.0重量％，余量为Fe和杂质。

公开(公告)号：US5021215A

公开(公告)日：1991-06-04

申请号：US472165

申请日：1990-01-30

申请人： Yoshiatsu Sawaragi ,  Nobuyuki Maruyama

发明人： Yoshiatsu Sawaragi ,  Nobuyuki Maruyama

IPC分类号： C22C38/00 ,  C22C30/00 ,  C22C38/50 ,  C22C38/54 ,  C22C38/58

CPC分类号： C22C38/54 ,  C22C30/00 ,  C22C38/50 ,  C22C38/58

摘要： A high-strength, heat-resistant steel with improved formability is disclosed, which consists essentially of, by weight %:______________________________________ C: 0.05-0.30%, Si: not greater than 3.0%, Mn: not greater than 10%, Cr: 15-35%, Ni: 15-50%, Mg: 0.001-0.02%, B: 0-0.01%, Zr: 0-0.10%, Ti: 0-1.0%, Nb: 0-2.0%, Al: 0-1.0%, and Mo: 0-3.0%, W: 0-6.0%, (Mo + 1/2 W = 3.0% or less) ______________________________________ a balance of Fe and incidental impurities, of the impurities, oxygen and nitrogen being restricted to 50 ppm or less and 200 ppm or less, respectively, and the austenite grain size number being restricted to No. 4 or coarser.

公开(公告)号：US5543109A

公开(公告)日：1996-08-06

申请号：US381419

申请日：1995-01-31

申请人： Hiroyuki Senba ,  Yoshiatsu Sawaragi

发明人： Hiroyuki Senba ,  Yoshiatsu Sawaragi

IPC分类号： C22C19/05 ,  C22C38/00 ,  C22C38/54 ,  C22C19/00

CPC分类号： C22C19/055 ,  C22C19/053

摘要： A high Cr austenitic heat resistant alloy excellent in high temperature strength which essentially consists of, in weight percent, from more than 0.02% to 0.10% C, not more than 1.0% Si, not more than 2.0% Mn, 28 to 38% Cr, 35 to 60% Ni, from more than 0.5% to 1.5% Ti, not more than 0.05% N, 0.01 to 0.3% Al, 0.001 to 0.01% B, 0 to 0.1% Zr, 0 to 1.0% Nb, one or both of 0.5 to 3.0% Mo and 1.0 to 6.0% W, and the balance being Fe and incidental impurities. The alloy may further contain one or both of 0.001 to 0.05% Mg and 0.001 to 0.05% Ca. This alloy is suitable for producing a single layered tube which is less expensive and more reliable than the conventional double layered tube.

摘要翻译： 高Cr强度优良的高Cr奥氏体系耐热合金，主要由以重量百分比计，大于0.02％至0.10％C，不超过1.0％的Si，不超过2.0％的Mn，28至38％的Cr ，35〜60％的Ni，超过0.5％〜1.5％的Ti，不大于0.05％的N，0.01〜0.3％的Al，0.001〜0.01％的B，0〜0.1％的Zr，0〜1.0％的Nb，1或 0.5〜3.0％Mo和1.0〜6.0％W，余量为Fe和附带杂质。 该合金可以进一步含有0.001至0.05％的Mg和0.001至0.05％的Ca中的一种或两种。 该合金适用于生产比常规双层管更便宜和更可靠的单层管。

公开(公告)号：US5240516A

公开(公告)日：1993-08-31

申请号：US892126

申请日：1992-06-02

申请人： Atsuro Iseda ,  Yoshiatsu Sawaragi ,  Fujimitsu Mausyama ,  Tomomitsu Yokoyama

发明人： Atsuro Iseda ,  Yoshiatsu Sawaragi ,  Fujimitsu Mausyama ,  Tomomitsu Yokoyama

IPC分类号： C22C38/00 ,  C22C38/20 ,  C22C38/42 ,  C22C38/48

CPC分类号： C22C38/42 ,  C22C38/20

摘要： A Cu-containing, high-Cr ferritic, heat-resistant steel is prevented from copper checking without a reduction in strength, toughness, resistance to hot corrosion, or oxidation, and its weldability is maintained at satisfactory levels. The steel consists essentially, on a weight basis, of: C: 0.03-0.15%, Si: at most 0.7%, Mn: 0.1-1.5%, Ni: 0.05-1.0%, Cr: 8-14%, W: 0.8-3.5%, V: 0.1-0.3%, Nb: 0.01-0.2%, N: 0.001-0.1%, Al: at most 0.05%, Cu: 0.4-3.5%, B: 0-0.02%, one or more elements selected from the group consisting of La, Ce, Ca, Y, Ti, Zr, and Ta: 0-0.2% each, and a balance of Fe and incidental impurities, wherein the Cu and Ni contents satisfy the following Inequality: 2.5.ltoreq.(%Cu)/(%Ni).ltoreq.4.5.

公开(公告)号：US5211909A

公开(公告)日：1993-05-18

申请号：US837917

申请日：1992-02-20

申请人： Atsuro Iseda ,  Yoshiatsu Sawaragi ,  Fujimitsu Masuyama ,  Tomomitsu Yokoyama

发明人： Atsuro Iseda ,  Yoshiatsu Sawaragi ,  Fujimitsu Masuyama ,  Tomomitsu Yokoyama

IPC分类号： C22C38/00 ,  C22C38/22 ,  C22C38/32 ,  C22C38/54

CPC分类号： C22C38/32 ,  C22C38/22

摘要： A low-alloy steel consists essentially, on a weight basis, of: C: 0.03-0.12%, Si: at most 0.7%, Mn: 0.1-1.5%, Ni: at most 0.8%, P: at most 0.03%, S: at most 0.015%, Cr: 1.5-3.5%, W: 1-3%, V: 0.1-0.35%, Nb: 0.01-0.1%, B: 0.0001-0.02%, N: less than 0.005%, Al: less than 0.005%, Ti: 0.001-0.1%, optionally one or more elements selected from the group consisting of: La, Ce, Y, Ca, Zr, and Ta: 0.01-0.2%, Mg: 0.0005-0.05%, and Mo: 0.01-0.4%, and a balance of Fe and incidental impurities, wherein the Ti and Ni contents satisfy the following inequality:0.080.gtoreq.Ti(%)-(48/14).times.N(%).gtoreq.0.003.The steel has improved creep strength at high temperatures and improved toughness. It can be substituted for expensive austenitic stainless steels or high-Cr ferritic steels.