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1. 发明专利

DE69620722T2 未知
公开(公告)号：DE69620722T2
公开(公告)日：2002-12-05
申请号：DE69620722
申请日：1996-12-19
申请人： NIPPON STEEL CORP
发明人： ISHITSUKA TETSUO , MIMURA HIROYUKI
IPC分类号： C22C38/00 , C22C38/18 , C22C38/44 , C22C38/46 , C22C38/48

2. 发明专利

CA2142983A1 STEEL PRODUCT COVERED WITH HIGH-STRENGTH POLYOLEFIN 未知
公开(公告)号：CA2142983A1
公开(公告)日：1995-01-05
申请号：CA2142983
申请日：1994-06-24
申请人： NIPPON STEEL CORP
发明人： YOSHIZAKI NOBUKI , MIYAJIMA YOSHIHIRO , KARIYAZONO YOSHIHISA , SATO HIROTAKA , SASAKI TOSHIYUKI , MIMURA HIROYUKI
IPC分类号： B32B15/085 , B32B15/08 , B32B15/14 , B32B27/20 , F16L57/06
摘要： The present invention relates to a polyolefincovered steel product and more particularly to a polyolefin-covered steel product, for use in a steel structure, having excellent impact resistance, flaw resistance and resistance to abrasion by littoral drift. The polyolefin-covered steel product comprises a steel product which has been subjected to surface treatment, and having laminated onto the treated surface, a modified polyolefin resin layer and a polyolefin resin layer, characterized in that the surface of the polyolefin resin layer is further covered with a fiber cloth to which a modified polyolefin resin has been laminated.

3. 发明公开

EP0708184A4 HIGH-STRENGTH AUSTENITIC HEAT-RESISTING STEEL WITH EXCELLENT WELDABILITY AND GOOD HIGH-TEMPERATURE CORROSION RESISTANCE 失效
标题翻译：高强度，以优异的焊接性能和良好的抗高温腐蚀耐热性奥氏体钢
公开(公告)号：EP0708184A4
公开(公告)日：1996-07-03
申请号：EP94914608
申请日：1994-05-12
申请人： NIPPON STEEL CORP
发明人： MIMURA HIROYUKI , KIKUCHI MASAO , ARAKI SATOSHI , NAOI HISASHI
IPC分类号： C22C38/00 , C22C30/00 , C22C38/54
CPC分类号： C22C38/54 , C22C30/00
摘要： A high-strength austenitic heat-resisting steel that has excellent weldability and good high-temperature corrosion resistance and can exhibit excellent performance when used as the material of boilers to be used under the conditions becoming more and more severe. The steel comprises less than 0.02 % (by mass, the same will apply hereinbelow) of carbon, at most 1.5 % of silicon, 0.3-1.5 % of manganese, at most 0.02 % of phosphorus, at most 0.005 % of sulfur, 18-26 % of chromium, 20-40 % of nickel, 0.5-10.0 % of tungsten, 0.05-0.4 % of niobium, 0.01-0.2 % of titanium, 0.003-0.008 % of boron, 0.05-0.3 % of nitrogen, and if necessary at least one member of 0.5-2.0 % of molybdenum and/or 0.001-0.05 % of magnesium, 0.001-0.05 % of calcium and 0.001-0.15 % of rare earth element (REM), and the balance consisting of iron and inevitable impurities.
摘要翻译：一种高强度奥氏体系耐热钢具有优良的焊接性没有和良好的高温耐腐蚀性，并且可以表现出优异的性能在使用时作为条件下变得越来越严重被用于锅炉的材料。该钢包含小于0：02％（按质量计，同样将应用于下文）的碳，硅的至多1.5％，锰0.3-1.5％，至多0.02％的磷与硫的至多0.005％，18- 铬的26％，20至40％的镍，钨的0.5-10.0％，铌0.05-0.4％，钛的0.01-0.2％，硼的0003-0008％，氮的0.05-0.3％，并在必要时的至少一个的构件钼0.5-2.0％，和/或镁的0.001-0.05％，钙的0.001-0.05％和稀土类元素的0.001-0.15％（REM），以及余量的铁和不可避免的杂质由...组成的。

4. 发明专利

AU2003212038B2 Steel Pipe Having Low Yield Ratio 未知
公开(公告)号：AU2003212038B2
公开(公告)日：2006-10-05
申请号：AU2003212038
申请日：2003-07-10
申请人： NIPPON STEEL CORP
发明人： OGATA TOSHIYUKI , OHGAMI MASAHIRO , MIMURA HIROYUKI , FUJII TOSHIO
IPC分类号： C22C38/00 , C22C38/06 , C21D8/02 , C22C38/02 , C22C38/04 , C22C38/58
摘要： The present invention provides a steel pipe having a low yield ratio and is: a steel pipe having a low yield ratio, wherein the steel pipe contains, in mass, 0.01 to 0.20% C, 0.05 to 1.0% Si, 0.1 to 2.0% Mn and 0.001 to 0.05% Al, the microstructure of the steel pipe is composed of ferrite and pearlite, or ferrite and cementite, and the average size of the ferrite grains is not smaller than 20 mu m; and a steel pipe having a low yield ratio, wherein the steel pipe contains, in mass, 0.03 to 0.20% C, 0.05 to 1.0% Si, 0.1 to 2.0% Mn, 0.001 to 0.05% Al, 0.01 to 0.5% Nb and 0.001 to 0.01% N, the microstructure of the steel pipe is composed of ferrite and bainite, or ferrite, martensite and bainite, or ferrite and martensite, and the average size of the ferrite grains is not smaller than 20 mu m.

5. 发明专利

HK1073665A1 Heavy-duty anticorrosive coated stel material withexcellent resistance against separation and corro sion 未知
公开(公告)号：HK1073665A1
公开(公告)日：2005-10-14
申请号：HK05106158
申请日：2005-07-21
申请人： NIPPON STEEL CORP
发明人： YOSHIZAKI NOBUKI , MIMURA HIROYUKI , HARADA YOSHIYUKI , YAMAMOTO MASAHIRO
IPC分类号： C09D20060101 , B05D7/00 , B05D7/16 , B32B15/08 , C23C28/00 , C23F20060101
摘要： An inexpensive method with good productivity, without coating of titanium metal, is necessary for satisfying the requirement for a long life of a heavy-duty anticorrosive steel material and in order to provide a heavy-duty anticorrosive coated steel material with excellent resistance against separation and corrosion. To respond to this demand, an oxygen-blocking layer is incorporated into the heavy-duty anticorrosive coating, for example, an organic resin sheet (film) capable of blocking the oxygen permeation is stacked or such an organic resin is painted on a conventional heavy-duty anticorrosive coating or a heavy-duty anticorrosive coating subjected to a chemical conversion treatment as the surface treatment.

6. 发明专利

DK0789785T3 未知
公开(公告)号：DK0789785T3
公开(公告)日：2002-11-25
申请号：DK95936093
申请日：1995-11-02
申请人： BABCOCK HITACHI KK , NIPPON STEEL CORP , FUJITA TOSHIO
发明人： FUJITA TOSHIO , HASHIMOTO KATSUKUNI , MIMURA HIROYUKI , SATO TAKASHI , TAMURA KOHJI
IPC分类号： C21D6/00 , C22C38/00 , C22C38/22 , C22C38/24 , C22C38/32

7. 发明专利

DE60318277T2 未知
公开(公告)号：DE60318277T2
公开(公告)日：2008-05-08
申请号：DE60318277
申请日：2003-07-09
申请人： NIPPON STEEL CORP
发明人： OHGAMI MASAHIRO , FUJII TOSHIO , OGATA TOSHIYUKI , MIMURA HIROYUKI
IPC分类号： C22C38/00 , C22C38/04 , C21D8/02 , C22C38/02 , C22C38/06 , C22C38/12 , C22C38/58
摘要： The present invention provides a steel pipe having a low yield ratio and is: a steel pipe having a low yield ratio, wherein the steel pipe contains, in mass, 0.01 to 0.20% C, 0.05 to 1.0% Si, 0.1 to 2.0% Mn and 0.001 to 0.05% Al, the microstructure of the steel pipe is composed of ferrite and pearlite, or ferrite and cementite, and the average size of the ferrite grains is not smaller than 20 mu m; and a steel pipe having a low yield ratio, wherein the steel pipe contains, in mass, 0.03 to 0.20% C, 0.05 to 1.0% Si, 0.1 to 2.0% Mn, 0.001 to 0.05% Al, 0.01 to 0.5% Nb and 0.001 to 0.01% N, the microstructure of the steel pipe is composed of ferrite and bainite, or ferrite, martensite and bainite, or ferrite and martensite, and the average size of the ferrite grains is not smaller than 20 mu m.

8. 发明专利

DE60318277D1 未知
公开(公告)号：DE60318277D1
公开(公告)日：2008-02-07
申请号：DE60318277
申请日：2003-07-09
申请人： NIPPON STEEL CORP
发明人： OHGAMI MASAHIRO , FUJII TOSHIO , OGATA TOSHIYUKI , MIMURA HIROYUKI
IPC分类号： C22C38/00 , C22C38/04 , C21D8/02 , C22C38/02 , C22C38/06 , C22C38/12 , C22C38/58
摘要： The present invention provides a steel pipe having a low yield ratio and is: a steel pipe having a low yield ratio, wherein the steel pipe contains, in mass, 0.01 to 0.20% C, 0.05 to 1.0% Si, 0.1 to 2.0% Mn and 0.001 to 0.05% Al, the microstructure of the steel pipe is composed of ferrite and pearlite, or ferrite and cementite, and the average size of the ferrite grains is not smaller than 20 mu m; and a steel pipe having a low yield ratio, wherein the steel pipe contains, in mass, 0.03 to 0.20% C, 0.05 to 1.0% Si, 0.1 to 2.0% Mn, 0.001 to 0.05% Al, 0.01 to 0.5% Nb and 0.001 to 0.01% N, the microstructure of the steel pipe is composed of ferrite and bainite, or ferrite, martensite and bainite, or ferrite and martensite, and the average size of the ferrite grains is not smaller than 20 mu m.

9. 发明专利

CA2434448C STEEL PIPE HAVING LOW YIELD RATIO 未知
公开(公告)号：CA2434448C
公开(公告)日：2008-01-29
申请号：CA2434448
申请日：2003-07-08
申请人： NIPPON STEEL CORP
发明人： OHGAMI MASAHIRO , MIMURA HIROYUKI , FUJII TOSHIO , OGATA TOSHIYUKI
IPC分类号： C22C38/00 , C22C38/12 , C21D8/02 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/58 , F16L9/02
摘要： The present invention provides a steel pipe having a low yield ratio and is: a steel pipe having a low yield ratio, wherein the steel pipe contains, in mass, 0.01 to 0.20% C, 0.05 to 1.0% Si, 0.1 to 2.0% Mn and 0.001 to 0.05% Al, the microstructure of the steel pipe is composed of ferrite and pearlite, or ferrite and cementite, and the average size of the ferrite grains is not smaller than 20 .mu.m; and a steel pipe having a low yield ratio, wherein the steel pipe contains, in mass, 0.03 to 0.20% C, 0.05 to 1.0% Si, 0.1 to 2.0% Mn, 0.001 to 0.05% Al, 0.01 to 0.5% Nb and 0.001 to 0.01% N, the microstructure of the steel pipe is composed of ferrite and bainite, or ferrite, martensite and bainite, or ferrite and martensite, and the average size of the ferrite grains is not smaller than 20 .mu.m.

10. 发明专利

CA2434448A1 STEEL PIPE HAVING LOW YIELD RATIO 未知
公开(公告)号：CA2434448A1
公开(公告)日：2004-01-10
申请号：CA2434448
申请日：2003-07-08
申请人： NIPPON STEEL CORP
发明人： FUJII TOSHIO , OHGAMI MASAHIRO , OGATA TOSHIYUKI , MIMURA HIROYUKI
IPC分类号： C22C38/00 , C21D8/02 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/58 , C22C38/12 , F16L9/02
摘要： The present invention provides a steel pipe having a low yield ratio and is: a steel pipe having a low yield ratio, wherein the steel pipe contains, in mass, 0.01 to 0.20% C, 0.05 to 1.0% Si, 0.1 to 2.0% Mn and 0.001 to 0.05% Al, the microstructure of the steel pipe is composed of ferrite and pearlite, or ferrite and cementite, and the average size of the ferrite grains is not smaller than 20 .mu.m; and a steel pipe having a low yield ratio, wherein the steel pipe contains, in mass, 0.03 to 0.20% C, 0.05 to 1.0% Si, 0.1 to 2.0% Mn, 0.001 to 0.05% Al, 0.01 to 0.5% Nb and 0.001 to 0.01% N, the microstructure of the steel pipe is composed of ferrite and bainite, or ferrite, martensite and bainite, or ferrite and martensite, and the average size of the ferrite grains is not smaller than 20 .mu.m.

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