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1. 发明授权

US5405575A High Cr content, P added ferritic stainless steel having improved atmospheric corrosion resistance and rust prevention 失效
标题翻译：高Cr含量，P添加铁素体不锈钢，具有改善的耐大气腐蚀性和防锈性
公开(公告)号：US5405575A
公开(公告)日：1995-04-11
申请号：US140005
申请日：1993-10-22
申请人： Yoshihiro Yazawa , Yasushi Kato , Fusao Togashi , Keiichi Yoshioka , Sadao Hasuno
发明人： Yoshihiro Yazawa , Yasushi Kato , Fusao Togashi , Keiichi Yoshioka , Sadao Hasuno
IPC分类号： C22C38/18
CPC分类号： C22C38/18
摘要： High Cr content, P added ferritic stainless steel containing, in % by weight, C: up to 0.02%, Si: up to 1.0%, Mn: up to 1.0%, S: up to 0.03%, Cr: from more than 20% to 40%, N: up to 0.015%, Al: up to 0.5%, and P: from more than 0.06% to 0.20%, the balance being Fe and incidental impurities, is improved in atmospheric corrosion resistance and rust prevention. The stainless steel may further contain at least one element selected from the following groups: (1) Mo: up to 4.0%; (2) one or more elements of Ti: up to 1.0%, Nb: up to 1.0%, Ta: up to 1.0%, V: up to 1.0%, W: up to 1.0%, Zr: up to 1.0%, and B: up to 0.01%; and (3) one or more elements of Cu: up to 1.0%, Ni: up to 5.0%, and Co: up to 1.0%.
摘要翻译： PCT No.PCT / JP93 / 00231 Sec。 371日期：1993年10月22日 102（e）日期1993年10月22日PCT提交1993年2月25日PCT公布。公开号WO93 / 17143 日期：1993年9月2日。高Cr含量，P添加的铁素体不锈钢以重量％计含有C：高达0.02％，Si：高达1.0％，Mn：高达1.0％，S：高达0.03％，Cr：从20％到40％，N：高达0.015％，Al：高达0.5％，P：从大于0.06％到0.20％，余量为Fe和杂质，在大气中得到改善耐腐蚀和防锈。不锈钢还可含有至少一种选自以下组的元素：（1）Mo：至多4.0％; （2）Ti的一种或多种元素：至多1.0％，Nb：至多1.0％，Ta：至多1.0％，V：至多1.0％，W：至多1.0％，Zr：至多1.0％ B：高达0.01％; 和（3）一种或多种Cu元素：至多1.0％，Ni：至多5.0％，Co：至多1.0％。

2. 发明授权

US07341795B2 Fe-Cr alloy structure with excellent corrosion resistance and excellent adhesion, and manufacturing method thereof 有权
标题翻译：具有优异的耐腐蚀性和优异的附着力的Fe-Cr合金结构及其制造方法
公开(公告)号：US07341795B2
公开(公告)日：2008-03-11
申请号：US10601453
申请日：2003-06-23
申请人： Yoshihiro Yazawa , Osamu Furukimi , Yasushi Kato , Sadao Hasuno
发明人： Yoshihiro Yazawa , Osamu Furukimi , Yasushi Kato , Sadao Hasuno
IPC分类号： B32B15/08 , B32B15/16 , B32B15/18 , B32B37/14 , B05D7/00
CPC分类号： C22C38/02 , C09D5/10 , C22C38/001 , C22C38/004 , C22C38/42 , C22C38/44 , C22C38/48 , C22C38/50 , Y10T428/12063 , Y10T428/12361 , Y10T428/12375 , Y10T428/12569 , Y10T428/12792 , Y10T428/12799 , Y10T428/12951 , Y10T428/12979 , Y10T428/2495 , Y10T428/263 , Y10T428/31529 , Y10T428/31678
摘要： The invention provides a Fe—Cr alloy structure containing Cr of about 6% or more by mass but about 25% or less by mass, having a corrosion-resistant paint film containing metal powder having ionization tendencies greater than iron, with a content of the metal powder of about 20% or more by volume but about 60% or less by volume in a dry paint film, with a dry film thickness of about 5 μm or more but about 100 μm or less; and a manufacturing method thereof; whereby excellent corrosion resistance and excellent adhesion is provided.
摘要翻译：本发明提供一种Fe-Cr合金结构，其含有约6质量％以上且约25质量％以下的Cr，具有含有电离倾向大于铁的金属粉末的耐腐蚀漆膜，其含量约20％或更多体积但约为干燥漆膜中的约60％或更少的金属粉末，干膜厚度约5μm或更大但约100μm或更小; 及其制造方法。从而提供优异的耐腐蚀性和优异的粘附性。

3. 发明授权

US5413754A Ferritic stainless steel exhibiting excellent atmospheric corrosion resistance and crevice corrosion resistance 失效
标题翻译：铁素体不锈钢具有优异的耐大气腐蚀性和缝隙耐腐蚀性
公开(公告)号：US5413754A
公开(公告)日：1995-05-09
申请号：US242181
申请日：1994-05-13
申请人： Yoshihiro Yazawa , Satoshi Owada , Fusao Togashi , Keiichi Yoshioka , Susumu Satoh
发明人： Yoshihiro Yazawa , Satoshi Owada , Fusao Togashi , Keiichi Yoshioka , Susumu Satoh
IPC分类号： C22C38/18
CPC分类号： C22C38/18
摘要： A ferritic stainless steel exhibiting excellent atmospheric corrosion resistance and crevice corrosion resistance can be provided by positively adding P thereto and by adequately adjusting Ca and Al. The ferritic stainless steel according to the present invention essentially consists of, in weight percentages,C: about 0.05% or lessSi: about 1.0% or lessCr: about 11% or more and less than about 20%Mn: about 1.0% or lessN: about 0.10% or lessS: about 0.03% or lessCa: about 5 ppm or more and about 50 ppm or lessAl: about 0.5% or lessP: more than about 0.04% and about 0.20% or lessand the balance being iron and incidental impurities. The stainless steel according to the present invention may also contain at least one element selected from a group (1) consisting of about 6% or less of Mo, group (2) consisting of about 1.0% or less of Cu, about 3% or less of Ni and about 3% or less of Co, or group (3) consisting of about 1.0% or less of Ti, about 1.0% or less of Nb, about 1.0% or less of V, about 1.0% or less of W, about 1.0% or less of Zr, about 1.0% or less of Ta and about 0.05% or less of B.
摘要翻译：通过向其中积极添加P并通过适当地调节Ca和Al，可以提供具有优异的耐大气腐蚀性和耐缝隙腐蚀性的铁素体不锈钢。根据本发明的铁素体不锈钢基本上以重量百分数C：约0.05％或更少的Si：约1.0％或更少的Cr：约11％或更多且少于约20％的Mn：约1.0％或少N：约0.10％以下S：约0.03％以下Ca：约5ppm以上约50ppm以下Al：约0.5％以下P：大于约0.04％和约0.20％以下，余量为铁和杂质。根据本发明的不锈钢还可以含有选自由约6％或更少的Mo组成的组（1）中的至少一种元素，由约1.0％或更少的Cu组成的组（2），约3％或较少的Ni和约3％或更少的Co，或由约1.0％或更少的Ti，约1.0％或更少的Nb，约1.0％或更少的V，约1.0％或更少的W组成的组（3），约1.0％以下的Zr，约1.0％以下的Ta和约0.05％以下的B.

4. 发明授权

US5019181A Method of making stainless steel sheet for exterior building constituent 失效
标题翻译：外部建筑构件不锈钢板的制作方法
公开(公告)号：US5019181A
公开(公告)日：1991-05-28
申请号：US495345
申请日：1990-03-19
申请人： Yoshihiro Yazawa , Yuji Sone , Keiichi Yoshioka , Noboru Kinoshita , Masayuki Hino
发明人： Yoshihiro Yazawa , Yuji Sone , Keiichi Yoshioka , Noboru Kinoshita , Masayuki Hino
IPC分类号： C21D8/02
CPC分类号： C21D8/0205
摘要： A sheet metal made from a ferritic stainless steel alloy which has an improved corrosion resistivity and is suitable for use in manufacturing exterior building material, in particular, roofing material, by means of forming process such as roll-forming, without formation of pocket wave. The steel alloy comprises 10-32 wt % of Cr and 0.005-0.1%, in total, of C and N, the balance being Fe and unavoidable impurities. The sheet metal has been processed to present a mechanical property that, when tested in a tensile test conducted for a test piece sample in the widthwise direction of cold-rolling and measured at the elastic limit reached in the test, a strain ratio is equal to or greater than 2.5.The method of making the sheet metal comprises the steps of: cold rolling a steel slab into a sheet metal, subjecting the thus obtained sheet metal to final annealing, subjecting the sheet metal to skin-pass rolling, and, subjecting the resulting sheet metal to aging process at a temperature of 200.degree.-550.degree. C. for a time period of more than 5 seconds and less than 48 hours.

5. 发明授权

US5288343A Stainless steel sheet for exterior building constituent 失效
标题翻译：外部建筑构件不锈钢板
公开(公告)号：US5288343A
公开(公告)日：1994-02-22
申请号：US982021
申请日：1992-11-24
申请人： Yoshihiro Yazawa , Yuji Sone , Keiichi Yoshioka , Noboru Kinoshita , Masayuki Hino
发明人： Yoshihiro Yazawa , Yuji Sone , Keiichi Yoshioka , Noboru Kinoshita , Masayuki Hino
IPC分类号： C21D8/02 , C22C38/18
CPC分类号： C21D8/0205
摘要： A sheet metal made from a ferritic stainless steel alloy which has an improved corrosion resistivity and is suitable for use in manufacturing exterior building material, in particular, roofing material, by means of forming process such as roll-forming, without formation of pocket wave. The steel alloy comprises 10-32 wt % of Cr and 0.005-0.1 wt %, in total, of C and N, the balance being Fe and unavoidable impurities. The sheet metal has been processed to present a mechanical property that, when tested in a tensile test conducted for a test piece sampled in the widthwise direction of cold-rolling and measured at the elastic limit reached in the test, a strain ratio is equal to or greater than 2.5.The method of making the sheet metal comprises the steps of: cold rolling a steel slab into a sheet metal, subjecting the thus obtained sheet metal to final annealing, subjecting the sheet metal to skin-pass rolling, and, subjecting the resulting sheet metal to aging process at a temperature of 200.degree.-550.degree. C. for a time period of more than 5 seconds and less than 48 hours.
摘要翻译：一种由铁素体不锈钢合金制成的金属片，其具有改善的耐腐蚀性，并且通过诸如滚压成型的成形方法适用于制造外部建筑材料，特别是屋顶材料，而不形成袋形波。钢合金含有10-32重量％的Cr和0.005-0.1重量％的C和N，余量为Fe和不可避免的杂质。已经对金属板进行了加工，表现出机械性能，当在对冷轧宽度方向取样并在试验中达到的弹性极限下测定的试件进行拉伸试验时，应变率等于或大于2.5。制造金属板的方法包括以下步骤：将钢坯冷轧成金属板，对所得到的金属板进行最终退火，对金属板进行表面光轧，对所得的金属板进行在200度-550摄氏度的温度下进行老化过程，持续时间超过5秒且小于48小时。

6. 发明申请

US20070163679A1 Austenitic-ferritic stainless steel 有权
标题翻译：奥氏体 - 铁素体不锈钢
公开(公告)号：US20070163679A1
公开(公告)日：2007-07-19
申请号：US10587222
申请日：2005-01-27
申请人： Mitsuyuki Fujisawa , Yoshihiro Yazawa , Yasushi Kato , Osamu Furukimi
发明人： Mitsuyuki Fujisawa , Yoshihiro Yazawa , Yasushi Kato , Osamu Furukimi
IPC分类号： C22C38/18 , C22C38/40
CPC分类号： C22C38/42 , C22C38/001 , C22C38/02 , C22C38/58
摘要： A low Ni and high N austenitic-ferritic stainless steel is disclosed. It includes an austenitic-ferritic stainless steel having high formability and punch stretchability, crevice corrosion resistance, corrosion resistance at welded part, or excellent intergranular corrosion resistance, from a stainless steel structured by mainly austenite phase and ferrite phase, and consisting essentially of 0.2% or less C, 4% or less Si, 12% or less Mn, 0.1% or less P, 0.03% or less S, 15 to 35% Cr, 3% or less Ni, and 0.05 to 0.6% N, by mass, by adjusting the percentage of the austenite phase in a range from 10 to 85%, by volume. Furthermore, it includes an austenitic-ferritic stainless steel having higher formability by adjusting the amount of (C+N) in the austenite phase to a range from 0.16 to 2% by mass.
摘要翻译：公开了一种低Ni和高N奥氏体 - 铁素体不锈钢。它包括由主要由奥氏体相和铁素体相构成的不锈钢，具有高成形性和冲孔拉伸性，耐缝隙腐蚀性，焊接部位的耐腐蚀性或优异的晶间耐腐蚀性的奥氏体 - 铁素体不锈钢，并且基本上由0.2％或更少的C，4％以下的Si，12％以下的Mn，0.1％以下的P，0.03％以下的S，15〜35％的Cr，3％以下的Ni和0.05〜0.6％的N，通过将奥氏体相的百分比调整为10〜85体积％的范围。此外，通过将奥氏体相中的（C + N）的量调节至0.16〜2质量％的范围，可以提高成形性的奥氏体 - 铁素体系不锈钢。

7. 发明授权

US07056398B2 Method of making ferritic stainless steel sheet having excellent deep-drawability and brittle resistance to secondary processing 有权
标题翻译：制造对二次加工具有优异的深冲性和耐脆性的铁素体不锈钢板的方法
公开(公告)号：US07056398B2
公开(公告)日：2006-06-06
申请号：US10671384
申请日：2003-09-24
申请人： Yoshihiro Yazawa , Osamu Furukimi , Yasushi Kato , Yoshihiro Ozaki
发明人： Yoshihiro Yazawa , Osamu Furukimi , Yasushi Kato , Yoshihiro Ozaki
IPC分类号： C21D8/04
CPC分类号： C22C38/26 , C21D8/0405 , C21D8/0463 , C21D8/0473 , C22C38/002 , C22C38/004 , C22C38/24 , C22C38/28 , C22C38/32
摘要： A ferritic stainless steel sheet contains abut 0.01 percent by mass or less of carbon; about 1.0 percent by mass or less of silicon; about 1.5 percent by mass or less of manganese; about 11 to about 23 percent by mass of chromium; about 0.06 percent by mass or less of phosphorous; about 0.03 percent by mass or less of sulfur; about 1.0 percent by mass or less of aluminum; about 0.04 percent by mass or less of nitrogen; about 0.0005 to about 0.01 percent by mass of boron; about 0.3 percent by mass or less of vanadium; about 0.8 percent by mass or less of niobium and/or about 1.0 percent by mass or less of titanium wherein 18≦Nb/(C+N)+2(Ti/(C+N))≦60; and the balance being iron and unavoidable impurities. The average crystal grain diameter is about 40 μm or less and the average surface roughness is about 0.3 μm or less.
摘要翻译：铁素体系不锈钢板含有0.01质量％以下的碳; 约1.0质量％以下的硅; 约1.5质量％以下的锰; 约11〜约23质量％的铬; 约0.06质量％以下的磷; 约0.03质量％以下的硫; 约1.0质量％以下的铝; 约0.04质量％以下的氮气; 约0.0005〜约0.01质量％的硼; 约0.3质量％以下的钒; 约0.8质量％以下的铌和/或约1.0质量％以下的钛，其中18≤Nb/（C + N）+2（Ti /（C + N））= 60; 余量为铁和不可避免的杂质。平均晶粒直径为约40μm或更小，平均表面粗糙度为约0.3μm或更小。

8. 发明授权

US06911098B2 Ferritic stainless steel sheet having excellent deep-drawability and brittle resistance to secondary processing and method for making the same 有权
标题翻译：对二次加工具有优异的深冲性和耐脆性的铁素体不锈钢板及其制造方法
公开(公告)号：US06911098B2
公开(公告)日：2005-06-28
申请号：US10282535
申请日：2002-10-29
申请人： Yoshihiro Yazawa , Osamu Furukimi , Yasushi Kato , Yoshihiro Ozaki
发明人： Yoshihiro Yazawa , Osamu Furukimi , Yasushi Kato , Yoshihiro Ozaki
IPC分类号： C22C38/18 , C21D8/04 , C22C38/00 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32
CPC分类号： C22C38/26 , C21D8/0405 , C21D8/0463 , C21D8/0473 , C22C38/002 , C22C38/004 , C22C38/24 , C22C38/28 , C22C38/32
摘要： A ferritic stainless steel sheet contains abut 0.01 percent by mass or less of carbon; about 1.0 percent by mass or less of silicon; about 1.5 percent by mass or less of manganese; about 11 to about 23 percent by mass of chromium; about 0.06 percent by mass or less of phosphorous; about 0.03 percent by mass or less of sulfur; about 1.0 percent by mass or less of aluminum; about 0.04 percent by mass or less of nitrogen; about 0.0005 to about 0.01 percent by mass of boron; about 0.3 percent by mass or less of vanadium; about 0.8 percent by mass or less of niobium and/or about 1.0 percent by mass or less of titanium wherein 18≦Nb/(C+N)+2(Ti/(C+N))≦60; and the balance being iron and unavoidable impurities. The average crystal grain diameter is about 40 μm or less and the average surface roughness is about 0.3 μm or less.
摘要翻译：铁素体系不锈钢板含有0.01质量％以下的碳; 约1.0质量％以下的硅; 约1.5质量％以下的锰; 约11〜约23质量％的铬; 约0.06质量％以下的磷; 约0.03质量％以下的硫; 约1.0质量％以下的铝; 约0.04质量％以下的氮气; 约0.0005〜约0.01质量％的硼; 约0.3质量％以下的钒; 约0.8质量％以下的铌和/或约1.0质量％以下的钛，其中18≤Nb/（C + N）+2（Ti /（C + N））= 60; 余量为铁和不可避免的杂质。平均晶粒直径为约40μm或更小，平均表面粗糙度为约0.3μm或更小。

9. 发明授权

US08562758B2 Austenitic-ferritic stainless steel 有权
标题翻译：奥氏体 - 铁素体不锈钢
公开(公告)号：US08562758B2
公开(公告)日：2013-10-22
申请号：US10587222
申请日：2005-01-27
申请人： Mitsuyuki Fujisawa , Yoshihiro Yazawa , Yasushi Kato , Osamu Furukimi
发明人： Mitsuyuki Fujisawa , Yoshihiro Yazawa , Yasushi Kato , Osamu Furukimi
IPC分类号： C22C38/38
CPC分类号： C22C38/42 , C22C38/001 , C22C38/02 , C22C38/58
摘要： A low Ni and high N austenitic-ferritic stainless steel is disclosed. It includes an austenitic-ferritic stainless steel having high formability and punch stretchability, crevice corrosion resistance, corrosion resistance at welded part, or excellent intergranular corrosion resistance, from a stainless steel structured by mainly austenite phase and ferrite phase, and consisting essentially of 0.2% or less C, 4% or less Si, 12% or less Mn, 0.1% or less P, 0.03% or less S, 15 to 35% Cr, 3% or less Ni, and 0.05 to 0.6% N, by mass, by adjusting the percentage of the austenite phase in a range from 10 to 85%, by volume. Furthermore, it includes an austenitic-ferritic stainless steel having higher formability by adjusting the amount of (C+N) in the austenite phase to a range from 0.16 to 2% by mass.
摘要翻译：公开了一种低Ni和高N奥氏体 - 铁素体不锈钢。它包括由主要由奥氏体相和铁素体相构成的不锈钢，具有高成形性和冲孔拉伸性，耐缝隙腐蚀性，焊接部位的耐腐蚀性或优异的晶间耐腐蚀性的奥氏体 - 铁素体不锈钢，并且基本上由0.2％或更少的C，4％以下的Si，12％以下的Mn，0.1％以下的P，0.03％以下的S，15〜35％的Cr，3％以下的Ni和0.05〜0.6％的N，通过将奥氏体相的百分比调整为10〜85体积％的范围。此外，通过将奥氏体相中的（C + N）的量调节至0.16〜2质量％的范围，可以提高成形性的奥氏体 - 铁素体系不锈钢。

10. 发明申请

US20050173033A1 Ferritic stainless steel plate with ti and method for production thereof 有权
公开(公告)号：US20050173033A1
公开(公告)日：2005-08-11
申请号：US10517886
申请日：2003-06-16
申请人： Yoshihiro Yazawa , Osamu Furukimi , Yasushi Kato
发明人： Yoshihiro Yazawa , Osamu Furukimi , Yasushi Kato
IPC分类号： C22C38/00 , C22C38/44 , C22C38/50 , C22C38/28
CPC分类号： C22C38/004 , C21D2211/004 , C21D2211/005 , C22C38/44 , C22C38/50
摘要： The present invention provides a Ti-containing ferritic stainless steel sheet and a manufacturing method thereof, the stainless steel being formed while a refining load is decreased and having a low yield strength which exhibits superior workability. Specifically, the Ti-containing ferritic stainless steel sheet contains on mass percent basis: 0.01% or less of C; 0.5% or less of Si; 0.3% or less of Mn; 0.01% to 0.04% of P; 0.01% or less of S; 8% to 30% of Cr; 1.0% or less of Al; 0.05% to 0.5% of Ti; 0.04% or less of N, 8≦Ti/(C+N)≦30 being satisfied; and the balance being substantially Fe and incidental impurities, wherein a grain size number of ferrite grain is 6.0 or more, and an average diameter Dp of precipitation diameters, each being [(a long axis length of a Ti base precipitate +a short axis length thereof)/2], of the Ti base precipitates in the steel sheet is in the range of from 0.05 μm to 1.0 μm. In addition, the method for manufacturing a Ti-containing ferritic stainless steel sheet includes the steps of: hot-rolling a slab having the composition described above, and performing recrystallization annealing of the hot-rolled steel sheet at a temperature of (a precipitation nose temperature of Ti base precipitates ±50° C.) so that an average diameter Dp of precipitation diameters, each being [(a long axis length of a Ti base precipitate+a short axis length thereof)/2], of the Ti base precipitates is in the range of from 0.05 μm to 1.0 μm and so that a grain size number of ferrite grain is 6.0 or more. The method for manufacturing a Ti-containing ferritic stainless steel sheet, further includes the steps of: performing cold rolling; and subsequently performing final annealing of the cold-rolled steel sheet at a temperature less than (a precipitation nose temperature of Ti base precipitates +100° C.) so that the average diameter Dp of precipitation diameters, each being [(a long axis length of a Ti base precipitate+a short axis length thereof)/2], of the Ti base precipitates is in the range of from 0.05 μm to 1.0 μm and so that the grain size number of ferrite grain is 6.0 or more.

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