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公开(公告)号：US10370748B2
公开(公告)日：2019-08-06
申请号：US15427667
申请日：2017-02-08
Applicant: ATI Properties LLC
Inventor： David S. Bergstrom , James M. Rakowski , Charles P. Stinner , John J. Dunn , John F. Grubb
IPC: C22C38/58 , C22C38/54 , C22C38/52 , C22C38/44 , C22C38/42 , C22C38/22 , C22C38/30 , C22C38/32 , C22C38/34 , C22C38/38 , C22C38/00 , C22C38/02
Abstract: An austenitic stainless steel having low nickel and molybdenum and exhibiting comparable corrosion resistance and formability properties to higher nickel and molybdenum alloys comprises, in weight %, up to 0.20 C, 2.0-9.0 Mn, up to 2.0 Si, 16.0-23.0 Cr, 1.0-5.0 Ni, up to 3.0 Mo, up to 3.0 Cu, 0.1-0.35 N, up to 4.0 W, up to 0.01 B, up to 1.0 Co, iron and impurities, the steel having a ferrite number of less than 10 and a MD30 value of less than 20° C.
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公开(公告)号：US09617628B2
公开(公告)日：2017-04-11
申请号：US14456026
申请日：2014-08-11
Applicant: ATI Properties LLC
Inventor： David S. Bergstrom , James M. Rakowski , Charles P. Stinner , John J. Dunn , John F. Grubb
IPC: C22C38/44 , C22C38/52 , C22C38/54 , C22C38/58 , C22C38/42 , C22C38/22 , C22C38/30 , C22C38/32 , C22C38/34 , C22C38/38 , C22C38/00 , C22C38/02
CPC classification number: C22C38/58 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/22 , C22C38/30 , C22C38/32 , C22C38/34 , C22C38/38 , C22C38/42 , C22C38/44 , C22C38/52 , C22C38/54
Abstract: An austenitic stainless steel having low nickel and molybdenum and exhibiting comparable corrosion resistance and formability properties to higher nickel and molybdenum alloys comprises, in weight %, up to 0.20 C, 2.0-9.0 Mn, up to 2.0 Si, 16.0-23.0 Cr, 1.0-5.0 Ni, up to 3.0 Mo, up to 3.0 Cu, 0.1-0.35 N, up to 4.0 W, up to 0.01 B, up to 1.0 Co, iron and impurities, the steel having a ferrite number of less than 10 and a MD30 value of less than 20° C.
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公开(公告)号：US09822435B2
公开(公告)日：2017-11-21
申请号：US14818852
申请日：2015-08-05
Applicant: ATI Properties LLC
Inventor： David S. Bergstrom , James M. Rakowski
IPC: C22C38/58 , C22C38/02 , C22C38/00 , F23J13/02 , F16L11/15 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/52 , C22C38/54
CPC classification number: C22C38/58 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/52 , C22C38/54 , F16L11/15 , F23J13/02
Abstract: An austenitic stainless steel composition including relatively low Ni and Mo levels, and exhibiting corrosion resistance, resistance to elevated temperature deformation, and formability properties comparable to certain alloys including higher Ni and Mo levels. Embodiments of the austenitic stainless steel include, in weight percentages, up to 0.20 C, 2.0-9.0 Mn, up to 2.0 Si, 15.0-23.0 Cr, 1.0-9.5 Ni, up to 3.0 Mo, up to 3.0 Cu, 0.05-0.35 N, (7.5(C))≦(Nb+Ti+V+Ta+Zr)≦1.5, Fe, and incidental impurities.
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公开(公告)号：US20170167006A1
公开(公告)日：2017-06-15
申请号：US15446467
申请日：2017-03-01
Applicant: ATI Properties LLC
Inventor： David S. Bergstrom , James M. Rakowski , Charles P. Stinner , John J. Dunn , John F. Grubb
CPC classification number: C22C38/58 , C21D8/0205 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/42 , C22C38/44 , C22C38/52 , C22C38/54
Abstract: An austenitic stainless steel composition having low nickel and molybdenum and exhibiting high corrosion resistance and good formability. The austenitic stainless steel includes, in weight %, up to 0.20 C, 2.0-6.0 Mn, up to 2.0 Si, 16.0-23.0 Cr, 5.0-7.0 Ni, up to 3.0 Mo, up to 3.0 Cu, 0.1-0.35 N, up to 4.0 W, up to 0.01 B, up to 1.0 Co, iron and impurities. The austenitic stainless steel has a ferrite number less than 11 and an MD30 value less than −10° C.
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5.发明授权公开(公告)号：US09580789B2
公开(公告)日：2017-02-28
申请号：US13873272
申请日：2013-04-30
Applicant: ATI Properties LLC
Inventor： James M. Rakowski
IPC: C23C8/10 , H01M8/0202 , C21D1/74 , C21D3/02 , C21D6/00 , C23C8/08 , H01M8/02 , H01B1/02 , H01M8/00 , H01M4/64 , H01M8/12
CPC classification number: C23C8/10 , C21D1/74 , C21D3/02 , C21D6/002 , C21D6/008 , C23C8/08 , H01B1/02 , H01M8/00 , H01M8/021 , H01M8/0228 , H01M2008/1293 , Y02E60/50 , Y02E60/525 , Y02P70/56
Abstract: A method of reducing the formation of electrically resistive scale on a an article comprising a silicon-containing ferritic stainless subjected to oxidizing conditions in service includes, prior to placing the article in service, subjecting the article to conditions under which silica, which includes silicon derived from the steel, forms on a surface of the steel. Optionally, at least a portion of the silica is removed from the surface to placing the article in service. A ferritic stainless steel alloy having a reduced tendency to form silica on at least a surface thereof also is provided. The steel includes a near-surface region that has been depleted of silicon relative to a remainder of the steel.
Abstract translation: 在包含使用氧化条件的含硅铁素体不锈钢的制品上减少形成电阻垢的方法包括在将制品置于使用状态之前，对制品进行条件，在该条件下，将包含硅的二氧化硅 从钢中，在钢的表面上形成。 任选地，从表面去除至少一部分二氧化硅以使制品投入使用。 还提供了一种在至少其表面上具有降低形成二氧化硅的趋势的铁素体不锈钢合金。 钢包括相对于钢的剩余部分已经耗尽硅的近表面区域。
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Patent Agency Ranking
公开(公告)号：US20170164426A1
公开(公告)日：2017-06-08
申请号：US15437180
申请日：2017-02-20
Applicant: ATI Properties LLC
Inventor： James M. Rakowski
IPC: H05B3/14 , C22C38/50 , C22C38/48 , C22C38/44 , C22C38/42 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/00 , B23K31/02 , H05B3/00 , H05B3/02 , H05B3/16 , H05B3/40 , B21D26/033 , F01N13/18 , C22C38/58
CPC classification number: H05B3/141 , B21D26/033 , B23K31/02 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/48 , C22C38/50 , C22C38/58 , F01N13/1816 , F01N2530/04 , H05B3/0014 , H05B3/16 , H05B3/40
Abstract: An austenitic stainless steel comprises, by weight, 9 to 23% chromium, 30 to 35% nickel, 1 to 6% molybdenum, 0 to 0.03% titanium, 0.15% to 0.6% aluminum, up to 0.1% carbon, 1 to 1.5% manganese, 0 to less than 0.8% silicon, 0.25 to 0.6% niobium and iron. Embodiments of austenitic stainless steels according to the present invention exhibit enhanced resistance to corrosion. Thus, the stainless steels of the present invention may find broad application as, for example, automotive components and, more particularly, as automotive exhaust system flexible connectors and other components, as well as in other applications in which corrosion resistance is desired.
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公开(公告)号：US20170145548A1
公开(公告)日：2017-05-25
申请号：US15427667
申请日：2017-02-08
Applicant: ATI Properties LLC
Inventor： David S. Bergstrom , James M. Rakowski , Charles P. Stinner , John J. Dunn , John F. Grubb
CPC classification number: C22C38/58 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/22 , C22C38/30 , C22C38/32 , C22C38/34 , C22C38/38 , C22C38/42 , C22C38/44 , C22C38/52 , C22C38/54
Abstract: An austenitic stainless steel having low nickel and molybdenum and exhibiting comparable corrosion resistance and formability properties to higher nickel and molybdenum alloys comprises, in weight %, up to 0.20 C, 2.0-9.0 Mn, up to 2.0 Si, 16.0-23.0 Cr, 1.0-5.0 Ni, up to 3.0 Mo, up to 3.0 Cu, 0.1-0.35 N, up to 4.0 W, up to 0.01 B, up to 1.0 Co, iron and impurities, the steel having a ferrite number of less than 10 and a MD30 value of less than 20° C.
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公开(公告)号：US10323308B2
公开(公告)日：2019-06-18
申请号：US15446467
申请日：2017-03-01
Applicant: ATI Properties LLC
Inventor： David S. Bergstrom , James M. Rakowski , Charles P. Stinner , John J. Dunn , John F. Grubb
Abstract: An austenitic stainless steel composition having low nickel and molybdenum and exhibiting high corrosion resistance and good formability. The austenitic stainless steel includes, in weight %, up to 0.20 C, 2.0-6.0 Mn, up to 2.0 Si, 16.0-23.0 Cr, 5.0-7.0 Ni, up to 3.0 Mo, up to 3.0 Cu, 0.1-0.35 N, up to 4.0 W, up to 0.01 B, up to 1.0 Co, iron and impurities. The austenitic stainless steel has a ferrite number less than 11 and an MD30 value less than −10° C.
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公开(公告)号：US09873932B2
公开(公告)日：2018-01-23
申请号：US14818868
申请日：2015-08-05
Applicant: ATI Properties LLC
Inventor： David S. Bergstrom , James M. Rakowski , Charles P. Stinner , John J. Dunn , John F. Grubb
IPC: C22C38/58 , C22C38/00 , C22C38/50 , F23J13/02 , F16L11/15 , C22C38/38 , C22C38/42 , C22C38/02 , C22C38/44 , C22C38/48 , C22C38/52 , C22C38/54
CPC classification number: C22C38/58 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/38 , C22C38/42 , C22C38/44 , C22C38/48 , C22C38/50 , C22C38/52 , C22C38/54 , F16L11/15 , F23J13/02
Abstract: An austenitic stainless steel composition including relatively low nickel and molybdenum levels, and exhibiting corrosion resistance, resistance to elevated temperature deformation, and formability properties comparable to certain alloys including higher nickel and molybdenum levels. Embodiments of the austenitic stainless steel include, in weight %, up to 0.20 C, 2.0 to 9.0 Mn, up to 2.0 Si, 16.0 to 23.0 Cr, 1.0 to 7.0 Ni, up to 3.0 Mo, up to 3.0 Cu, 0.05 to 0.35 N, up to 4.0 W, (7.5(C))≦(Nb+Ti+V+Ta+Zr)≦1.5, up to 0.01 B, up to 1.0 Co, iron and impurities. Additionally, embodiments of the steel may include 0.5≦(Mo+W/2)≦5.0 and/or 1.0≦(Ni+Co)≦8.0.
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公开(公告)号：US09624564B2
公开(公告)日：2017-04-18
申请号：US14497747
申请日：2014-09-26
Applicant: ATI PROPERTIES LLC
Inventor： David S. Bergstrom , James M. Rakowski , Charles P. Stinner , John J. Dunn , John F. Grubb
CPC classification number: C22C38/58 , C21D8/0205 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/42 , C22C38/44 , C22C38/52 , C22C38/54
Abstract: An austenitic stainless steel composition having low nickel and molybdenum and exhibiting high corrosion resistance and good formability. The austenitic stainless steel includes, in weight %, up to 0.20 C, 2.0-6.0 Mn, up to 2.0 Si, 16.0-23.0 Cr, 5.0-7.0 Ni, up to 3.0 Mo, up to 3.0 Cu, 0.1-0.35 N, up to 4.0 W, up to 0.01 B, up to 1.0 Co, iron and impurities. The austenitic stainless steel has a ferrite number less than 11 and an MD30 value less than −10° C.
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