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1. 发明授权

EP2813594B1 DOUBLE PIPE AND WELDED STRUCTURE UTILIZING SAME 有权转让
公开(公告)号：EP2813594B1
公开(公告)日：2018-12-12
申请号：EP13746313.9
申请日：2013-01-24
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： HIRATA, Hiroyuki , YOSHIZAWA, Mitsuru , OGAWA, Hidenori
IPC分类号： C22C38/00 , B23K9/025 , B23K9/18 , C22C38/06 , B32B15/01 , F22B37/12 , C22C38/02 , C22C38/04 , C22C38/40 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/52 , C22C38/54 , B23K103/04 , B23K101/08
CPC分类号： B23K9/0256 , B23K9/18 , B23K2101/08 , B23K2103/04 , B32B15/011 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/40 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/52 , C22C38/54 , F22B37/12
摘要： A double tube for welded structure comprises an inside tube of a heat resistant ferritic steel and an outside tube of a heat resistant austenitic steel. The inside tube has a chemical composition which comprises specific amounts of C, Si, Mn P, S, Ni + Cu, Cr, Mo + W, V, Nb, Ti, B, Al, N and O with the balance of Fe and impurities. The outside tube has a chemical composition which comprises specific amounts of C, Si, Mn, P, S, Ni, Cr, Al, N and O with the balance of Fe and impurities. A fillet weld zone, which satisfies Formula of [wall thickness of outside tube ‰¥ fusion depth in fillet weld + 0.3 mm], is formed on the outside surface of the double tube, and the wall thicknesses (mm) of the outside tube and inside tube satisfy Formula of [wall thickness of outside tube / (wall thickness of outside tube + wall thickness of inside tube) ‰¤ 0.4]. The double tube is excellent in weld crack resistance. If this double tube is used, a welded structure forming various types of high-temperature equipment can be manufactured by fillet-welding plates, metal fittings, and the like to the outside surface of the tube by means of ordinary submerged arc welding without performing treatment such as preheating, postheating, and cleaning of steel. The inside tube may contain one or more kinds of elements selected from Ca, Mg and REM, and the outside tube may contain one or more kinds of elements selected from Mo, W, Cu, Co, Nb, Ti, V, B, Ca, Mg and REM.

2. 发明授权

EP2511389B1 AUSTENITIC HEAT-RESISTANT ALLOY 有权转让
标题翻译：耐热合金奥氏体
公开(公告)号：EP2511389B1
公开(公告)日：2015-02-11
申请号：EP10835974.6
申请日：2010-12-08
申请人： Nippon Steel & Sumitomo Metal Corporation
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

3. 发明公开

EP3358030A1 AUSTENITIC STAINLESS STEEL AND METHOD FOR PRODUCING AUSTENITIC STAINLESS STEEL 有权转让
公开(公告)号：EP3358030A1
公开(公告)日：2018-08-08
申请号：EP16850796.0
申请日：2016-07-06
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： HIRATA, Hiroyuki , JOTOKU, Kana , OMURA, Tomohiko , NAKAMURA, Jun , TERUNUMA, Masaaki , OSUKI, Takahiro , UEYAMA, Masaki
IPC分类号： C22C38/00 , C21D8/00 , C22C38/58
CPC分类号： C21D8/005 , C21D8/00 , C22C38/00 , C22C38/001 , C22C38/02 , C22C38/06 , C22C38/20 , C22C38/42 , C22C38/44 , C22C38/48 , C22C38/50 , C22C38/52 , C22C38/58 , Y02P10/212
摘要： An austenitic stainless steel with improved strength, ductility and weldability is provided. An austenitic stainless steel has a chemical composition of, in mass %: 0.005 to 0.07 % C; 0.1 to 1.2 % Si; 3.2 to 6.5 % Mn; 9 to 14 % Ni; a total of not less than 0.005 % and less than 3 % of at least one of Cu and Co; 19 to 24 % Cr; 1 to 4 % Mo; 0.05 to 0.4 % Nb; 0.15 to 0.50 % N; up to 0.05 % Al; up to 0.03 % P; up to 0.002 % S; up to 0.02 % O; 0 to 0.5 % V; 0 to 0.5 % Ti; 0 to 0.01 % B; 0 to 0.05 % Ca; 0 to 0.05 % Mg; 0 to 0.5 % REM; and the balance being Fe and impurities, where the amount of Nb analyzed as residues after electrolytic extraction is 0.01 to 0.3 mass %.

4. 发明授权

EP2730365B1 AUSTENITE STEEL WELDED JOINT 有权转让
公开(公告)号：EP2730365B1
公开(公告)日：2018-08-08
申请号：EP12807616.3
申请日：2012-06-20
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： HIRATA, Hiroyuki , OMURA, Tomohiko , TOMIO, Yusaku , NAKAMURA, Jun
IPC分类号： B23K101/04 , B23K101/06 , B23K101/10 , B23K9/167 , B23K35/30 , C21D9/50 , C22C38/00 , C22C38/02 , C22C38/06 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/58
CPC分类号： B23K9/167 , B23K35/3053 , B23K35/308 , B23K35/3086 , B23K2101/04 , B23K2101/06 , B23K2101/10 , C21D9/50 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/18 , C22C38/40 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/58 , Y10T403/479 , Y10T428/12965 , Y10T428/12972 , Y10T428/12979
摘要： An austenitic steel welded joint is produced by welding base metal of austenitic steel having a certain chemical composition with a gas tungsten arc welding process which uses welding material of austenitic steel having a certain chemical composition. A chemical composition of weld metal comprises: C ‰¤ 0.1%; Si ‰¤ 0.8%; Mn: 1.5 to 5.5%; Ni: 8 to 15%; Cr: 18 to 24%; Al

5. 发明公开

EP3318651A1 AUSTENITIC HEAT-RESISTANT ALLOY AND WELDED STRUCTURE 审中-公开
标题翻译：奥氏体耐热合金和焊接结构
公开(公告)号：EP3318651A1
公开(公告)日：2018-05-09
申请号：EP16817633.7
申请日：2016-06-02
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： HIRATA, Hiroyuki , OKADA, Hirokazu , JOTOKU, Kana , ISEDA, Atsuro , ONO, Toshihide , TANAKA, Katsuki
IPC分类号： C22C38/00 , C22C38/58 , C21D8/00
摘要： An austenitic heat-resistant alloy is provided that provides good crack resistance and high-temperature strength in a stable manner. The austenitic heat-resistant alloy has a chemical composition of, in mass %: 0.04 to 0.15 % C; 0.05 to 1 % Si; 0.3 to 2.5 % Mn; up to 0.04 % P; up to 0.0015 % S; 2 to 4 % Cu: 11 to 16 % Ni; 16 to 20 % Cr; 2 to 5 % W; 0.1 to 0.8 % Nb; 0.05 to 0.35 % Ti; 0.001 to 0.015 % N; 0.0005 to 0.01 % B; up to 0.03 % Al; up to 0.02 % O; 0 to 0.02 % Sn; 0 to 0.5 % V; 0 to 2 % Co; 0 to 5 % Mo; 0 to 0.02 % Ca; 0 to 0.02 % Mg; 0 to 0.2 % REM; and the balance being Fe and impurities, the alloy having a microstructure with a grain size represented by a grain size number in accordance with ASTM E112 of 2.0 or more and less than 7.0.
摘要翻译：提供一种稳定地提供良好的抗裂性和高温强度的奥氏体耐热合金。奥氏体系耐热合金的化学组成以质量％计为：C：0.04〜0.15％ 0.05至1％的Si; 0.3至2.5％的Mn; P高达0.04％; 高达0.0015％S; 2至4％的Cu：11至16％的Ni; 16至20％的Cr; 2至5％W; 0.1至0.8％的Nb; 0.05至0.35％的Ti; 0.001至0.015％N; 0.0005至0.01％B; 高达0.03％的Al; 高达0.02％O; 0至0.02％Sn; 0至0.5％V; 0至2％Co; 0至5％Mo; Ca：0〜0.02％ 0至0.02％的Mg; 0至0.2％REM; 余量由Fe和杂质构成，所述合金具有根据ASTM E112，由粒径号表示的粒径的2.0以上且小于7.0的组织。

6. 发明授权

EP2743362B1 Ni-BASED HEAT-RESISTANT ALLOY 有权
标题翻译：耐热介绍镍基合金
公开(公告)号：EP2743362B1
公开(公告)日：2016-12-14
申请号：EP12822136.3
申请日：2012-07-31
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： SEMBA, Hiroyuki , OKADA, Hirokazu , HIRATA, Hiroyuki , YOSHIZAWA, Mitsuru , ISEDA, Atsuro
IPC分类号： C22C19/05 , C22F1/10
CPC分类号： C22C19/056 , C22C19/05 , C22C19/051 , C22C19/055 , C22F1/10

7. 发明公开

EP3100818A1 WELDING MATERIAL FOR NI-BASED HEAT-RESISTANT ALLOY, AND WELDED METAL AND WELDED JOINT EACH USING SAME 有权转让
标题翻译：焊接材料镍基耐热合金和焊缝金属及带焊接连接
公开(公告)号：EP3100818A1
公开(公告)日：2016-12-07
申请号：EP15741016.8
申请日：2015-01-22
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： HIRATA, Hiroyuki , JOTOKU, Kana , HAMAGUCHI, Tomoaki , YOSHIZAWA, Mitsuru , ONO, Toshihide , ISEDA, Atsuro
IPC分类号： B23K35/30 , B23K9/23 , C22C19/05
CPC分类号： B23K9/23 , B23K9/167 , B23K35/3033 , B23K35/304 , B23K2101/18 , B23K2103/05 , B23K2103/08 , B23K2103/26 , C22C19/05 , C22C19/055 , C22C19/056
摘要： There are provided: (1) A welding material for Ni-based heat resistant alloy has a chemical composition of: C:0.08 to 0.12%; Si ≤ 0.10%; Mn ≤ 1.50%; P ≤ 0.008%; S ≤ 0.002%; Ni: more than 56.0% to 60.0%; Co: 8.0 to 12.0%; Cr: 18.0 to 22.0%; Mo: 6.0 to 10.0%; Ti: 0.01 to 0.50%; Al: 0.50 to 1.00%; N ≤ 0.010%; O ≤ 0.010%; Nb: 0 to 0.50%; B: 0 to 0.0050%; Ca: 0 to 0.050%; Mg: 0 to 0.050%; and REM: 0 to 0.20%, with the balance: Fe and impurities, wherein the thickness of an oxide layer formed on the surface of the welding material is 30 µm or less; (2) a weld metal formed using the above welding material for Ni-based heat resistant alloy; and (3) a welded joint formed of the above weld metal and a base metal of a Ni-based heat resistant alloy excellent in high temperature strength.
摘要翻译：本发明提供：（1）对于耐Ni基合金的热的焊接材料具有℃的化学成分：0.08〜0.12％到; 硅‰¤≤0.10％; 锰‰¤〜1.50％; P‰¤0.008％; 小号‰¤0.002％; Ni：大于56.0％至60.0％; 共：8.0至12.0％; 的Cr：18.0〜22.0％; 沫：6.0〜10.0％; 的Ti：0.01〜0：50％; 铝：0.50〜1：00％; Ñ‰¤0.010％; ø‰¤0.010％; 的Nb：0〜00：50％; B：0〜0.0050％; 的Ca：0〜0.050％; 镁：0〜0.050％; 和REM：0〜0.20％，余量：Fe和杂质，worin形成的焊接材料的表面上形成氧化物层的厚度为30微米或更小; （2）使用耐为Ni基合金的热在上述焊接材料形成的焊接金属; 和（3）的焊接接头形成在上面的焊接金属和优异的高温强度的Ni基耐热合金的基体金属的。

8. 发明公开

EP3693487A1 AUSTENITIC STAINLESS STEEL 审中-公开
公开(公告)号：EP3693487A1
公开(公告)日：2020-08-12
申请号：EP18865120.2
申请日：2018-10-03
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： HIRATA, Hiroyuki , TANAKA, Katsuki , JOTOKU, Kana
IPC分类号： C22C38/00 , C22C38/60
摘要： A austenitic stainless steel which has a chemical composition consisting of, by mass%, C: 0.04 to 0.12%, Si: 0.25 to 0.55%, Mn: 0.7 to 2.0%, P: 0.035% or less, S: 0.0015% or less, Cu: 0.02 to 0.80%, Co: 0.02 to 0.80%, Ni: 10.0 to 14.0%, Cr: 15.5 to 17.5%, Mo: 1.5 to 2.5%, N: 0.01 to 0.10%, Al: 0.030% or less, O: 0.020% or less, Sn: 0 to 0.01%, Sb: 0 to 0.01%, As: 0 to 0.01%, Bi: 0 to 0.01%, V: 0 to 0.10%, Nb: 0 to 0.10%, Ti: 0 to 0.10%, W: 0 to 0.50%, B: 0 to 0.005%, Ca: 0 to 0.010%, Mg: 0 to 0.010% and REM: 0 to 0.10%, with the balance being Fe and impurities, and satisfying [18.0≤Cr+Mo+1.S×Si≤20.0] and [14.5≤Ni+30×(C+N)+0.5×(Mn+Cu+Co)≤19.5].

9. 发明公开

EP3309274A1 HIGH-Cr AUSTENITIC STAINLESS STEEL 有权转让
标题翻译：高铬奥氏体不锈钢
公开(公告)号：EP3309274A1
公开(公告)日：2018-04-18
申请号：EP16811480.9
申请日：2016-06-03
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： ISEDA, Atsuro , SEMBA, Hiroyuki , OKADA, Hirokazu , HIRATA, Hiroyuki , ONO, Toshihide , TANAKA, Katsuki , HAMAGUCHI, Tomoaki , JOTOKU, Kana
IPC分类号： C22C38/00 , C22C38/60
摘要： A high Cr austenitic stainless steel with a chemical composition consisting of in terms of % by mass, 0.03 to 0.12% of C, 0.10 to 1.00% of Si, 0.10 to 3.00% of Mn, 0.030% or less of P, 0.020% or less of S, 21.50 to 28.00% of Cr, more than 26.00 and not more than 35.00% of Ni, more than 2.00 and not more than 5.00% of W, 0.80% or less of Co, 0.01 to 0.70% of V, 0.15 to 1.00% of Nb, 0.001 to 0.040% of Al, 0.0001 to 0.0100% of B, 0.010 to 0.400% of W, 0.001 to 0.200% of Zr, 0.001 to 0.200% of Nd, 0.001 to 0.200% of Ta, 0.020 to 0.200% of Ta+0.8Nd+0.5Zr, 0.025% or less of Ti+Sn+Sb+Pb+As+Bi, 0.0090% or less of O, and a remainder consisting of Fe and impurities.
摘要翻译：本发明的高Cr奥氏体系不锈钢具有以质量％计含有C：0.03〜0.12％，Si：0.10〜1.00％，Mn：0.10〜3.00％，P：0.030％以下，0.020％或，S含量少，Cr含量21.50〜28.00％，Ni含量26.00以上35.00％以下，W含量2.00以上5.00％以下，Co含量0.80％以下，V含量0.01〜0.70％，0.15 ，Al：0.001〜0.040％，B：0.0001〜0.0100％，W：0.010〜0.400％，Zr：0.001〜0.200％，Nd：0.001〜0.200％，Ta：0.001〜0.200％，Nb：0.020〜 Ta + 0.8Nd + 0.5Zr 0.200％，Ti + Sn + Sb + Pb + As + Bi 0.025％以下，O：0.0090％以下，其余由Fe和杂质构成。

10. 发明授权

EP2199419B1 AUSTENITIC STAINLESS STEEL 有权转让
公开(公告)号：EP2199419B1
公开(公告)日：2018-03-07
申请号：EP08836524.2
申请日：2008-10-02
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： HIRATA, Hiroyuki , OGAWA, Kazuhiro , OSUKI, Takahiro , OKADA, Hirokazu , SEMBA, Hiroyuki
IPC分类号： C22C38/60 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/52 , C22C38/54 , C22C38/00
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

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