BR112015009634A2 - aço inoxidável ferrítico tendo excelente resistência térmica - Google Patents

aço inoxidável ferrítico tendo excelente resistência térmica

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Publication number
BR112015009634A2
BR112015009634A2 BR112015009634A BR112015009634A BR112015009634A2 BR 112015009634 A2 BR112015009634 A2 BR 112015009634A2 BR 112015009634 A BR112015009634 A BR 112015009634A BR 112015009634 A BR112015009634 A BR 112015009634A BR 112015009634 A2 BR112015009634 A2 BR 112015009634A2
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Brazil
Prior art keywords
stainless steel
less
ferritic stainless
formula
heat resistance
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BR112015009634A
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English (en)
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BR112015009634B1 (pt
Inventor
Fukuda Akihiro
Kobayashi Masaaki
Teraoka Shinichi
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Nippon Steel & Sumikin Sst
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Publication of BR112015009634A2 publication Critical patent/BR112015009634A2/pt
Publication of BR112015009634B1 publication Critical patent/BR112015009634B1/pt

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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
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    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26—Methods of annealing
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    • C21D6/00—Heat treatment of ferrous alloys
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    • C21D6/00—Heat treatment of ferrous alloys
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    • C21—METALLURGY OF IRON
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    • C21D6/00—Heat treatment of ferrous alloys
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    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
    • C21D8/0447—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment
    • C21D8/0463—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment following hot rolling
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    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
    • C21D8/0447—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment
    • C21D8/0473—Final recrystallisation annealing
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    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
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    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
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    • C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
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    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
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    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
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    • C22C38/00—Ferrous alloys, e.g. steel alloys
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    • C22C38/30—Ferrous alloys, e.g. steel alloys containing chromium with cobalt
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/16—Selection of particular materials
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    • C21D2211/00—Microstructure comprising significant phases
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    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • C21D9/48—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
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    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
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    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
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    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
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    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

resumo patente de invenção: "aço inoxidável ferrítico tendo excelente resistência térmica". a presente invenção fornece um aço inoxidável ferrítico contendo sn tendo excelente resistência térmica. o aço inoxidável ferrítico contém, em termos de % em massa, 0,015% ou menos de c, 1,5% ou menos de si, 1,5% ou menos de mn, 0,035% ou menos de p, 0,015% ou menos de s, 13-21% de cr, 0,01 a 0,50% de sn, 0,05 a 0,60% de nb e 0,020% ou menos de n, com o saldo consistindo em fe e as inevitáveis impurezas. o aço inoxidável ferrítico satisfaz a fórmula 1 e a fórmula 2, e tem uma concentração de sn nas bordas dos grãos de 2 % atômica ou menos quando submetido a um tratamento térmico a 600 a 750°c no qual o valor de l, como mostrado na fórmula 3, é 1,91 x 104 ou mais. 8 ? ci = (ti+0,52 nb) / (c + n) ? 26 (fórmula 1) gbsv = sn +ti - 2nb - 0,3mo - 0,2 ? 0 (fórmula 2) l = (273 + t) (log (t) + 20) (fórmula 3) t: temperatura (°c), t: tempo (h)
BR112015009634-4A 2012-10-30 2013-10-30 Aços inoxidáveis ferríticos, seus métodos de produção e elementos de sistema de escapamento BR112015009634B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2012-239148 2012-10-30
JP2012239148 2012-10-30
PCT/JP2013/079461 WO2014069543A1 (ja) 2012-10-30 2013-10-30 耐熱性に優れたフェライト系ステンレス鋼板

Publications (2)

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BR112015009634A2 true BR112015009634A2 (pt) 2017-07-04
BR112015009634B1 BR112015009634B1 (pt) 2019-08-20

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BR112015009634-4A BR112015009634B1 (pt) 2012-10-30 2013-10-30 Aços inoxidáveis ferríticos, seus métodos de produção e elementos de sistema de escapamento

Country Status (9)

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US (1) US20150292068A1 (pt)
EP (1) EP2915894B1 (pt)
JP (1) JP6223351B2 (pt)
KR (1) KR101690441B1 (pt)
CN (1) CN104769144B (pt)
BR (1) BR112015009634B1 (pt)
ES (1) ES2787353T3 (pt)
TW (1) TWI504763B (pt)
WO (1) WO2014069543A1 (pt)

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KR20170018457A (ko) * 2014-07-31 2017-02-17 제이에프이 스틸 가부시키가이샤 플라즈마 용접용 페라이트계 스테인리스 강판 및 그 용접 방법
JP6573459B2 (ja) * 2015-02-25 2019-09-11 日鉄ステンレス株式会社 穴拡げ性に優れたフェライト系ステンレス鋼鈑及びその製造方法
WO2016052528A1 (ja) * 2014-09-29 2016-04-07 新日鐵住金ステンレス株式会社 穴拡げ性に優れたフェライト系ステンレス鋼鈑及びその製造方法
JP6410543B2 (ja) * 2014-09-29 2018-10-24 新日鐵住金ステンレス株式会社 穴広げ性に優れたフェライト系ステンレス鋼鈑及びその製造方法
WO2016068139A1 (ja) * 2014-10-31 2016-05-06 新日鐵住金ステンレス株式会社 フェライト系ステンレス鋼板、鋼管およびその製造方法
JP6159775B2 (ja) 2014-10-31 2017-07-05 新日鐵住金ステンレス株式会社 耐排ガス凝縮水腐食性とろう付け性に優れたフェライト系ステンレス鋼及びその製造方法
JP6274370B1 (ja) * 2016-06-27 2018-02-07 Ｊｆｅスチール株式会社 フェライト系ステンレス鋼板
CN106435352A (zh) * 2016-06-30 2017-02-22 宝钢不锈钢有限公司 一种低成本高耐蚀性含Sn铁素体不锈钢及其制造方法
JP6699670B2 (ja) 2016-09-02 2020-05-27 Ｊｆｅスチール株式会社 フェライト系ステンレス鋼
KR102234326B1 (ko) 2016-09-02 2021-03-30 제이에프이 스틸 가부시키가이샤 페라이트계 스테인리스강
WO2018139207A1 (ja) * 2017-01-26 2018-08-02 Ｊｆｅスチール株式会社 フェライト系ステンレス熱延鋼板およびその製造方法
CN110462079B (zh) 2017-03-30 2021-07-13 杰富意钢铁株式会社 铁素体系不锈钢
CN110258559B (zh) * 2017-05-07 2021-07-06 云南建投第十三建设有限公司 一种用于钻机钻头的合金材料及冲孔桩施工工法
CN108411198A (zh) * 2018-03-28 2018-08-17 浙江益宏不锈钢有限公司 一种高性能不锈钢无缝钢管及其制造方法
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BR112015009634B1 (pt) 2019-08-20
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