BR0309098A - Método para produção de um aço inoxidável martensìtico - Google Patents

Método para produção de um aço inoxidável martensìtico

Info

Publication number
BR0309098A
BR0309098A BR0309098-1A BR0309098A BR0309098A BR 0309098 A BR0309098 A BR 0309098A BR 0309098 A BR0309098 A BR 0309098A BR 0309098 A BR0309098 A BR 0309098A
Authority
BR
Brazil
Prior art keywords
steel
stainless steel
lmp1
temperature
martensitic stainless
Prior art date
Application number
BR0309098-1A
Other languages
English (en)
Other versions
BRPI0309098B1 (pt
Inventor
Matsumi Tanida
Original Assignee
Sumitomo Metal Ind
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Metal Ind filed Critical Sumitomo Metal Ind
Publication of BR0309098A publication Critical patent/BR0309098A/pt
Publication of BRPI0309098B1 publication Critical patent/BRPI0309098B1/pt

Links

Classifications

    • 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
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • 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
    • C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
    • 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
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • 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
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

"MéTODO PARA PRODUçãO DE UM AçO INOXIDáVEL MARTENSìTICO". A presente invenção refere-se a um método de produção de um aço inoxidável martensítico. O método compreende as seguintes etapas (a) a (c): (a) preparar um aço tendo uma composição química consistindo em percentual em massa, C:0,003 a 0,050%, Si:0,05 a 1,00%, Mn:0,10 a 1,50%, Cr:10,5 a 14,0%, Ni:1,5 a 7,0%, V:0,02 a 0,20%, N:0,003 a 0,070%, Ti: não mais que 0,300% e o saldo sendo Fe e impurezas, e P e S entre as impurezas são não mais que 0,035% e não mais que 0,010% respectivamente, e que ela também satisfaça a seguinte equação: ([Ti]-3,4x[N])/[C]>4,5 onde [C], [N] e [Ti] significam os teores (percentual em massa) de C, N e Ti, respectivamente, (b) aquecer o aço a uma temperatura entre 850 e 950<198>C, (c) resfriar o aço, e (d) temperar o aço a uma temperatura entre Ac1-35<198>C e Ac1+35<198>C e em uma condição de não mais que 0,5 do valor da variação <sym>LMP1 nas características de amolecimento LMP1, que é definida pela seguinte equação: LMP1 =Tx(20+1,7xlog(t))x10^ -3^ onde T é a temperatura de tempera (K), e t é o tempo de têmpera (hora). O aço pode também conter de 0,2 ao 0,3% de Mo.
BRPI0309098A 2002-04-12 2003-04-11 método para produção de um aço inoxidável martensítico BRPI0309098B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002110495 2002-04-12
PCT/JP2003/004671 WO2003087415A1 (en) 2002-04-12 2003-04-11 Method for producing martensitic stainless steel

Publications (2)

Publication Number Publication Date
BR0309098A true BR0309098A (pt) 2005-02-09
BRPI0309098B1 BRPI0309098B1 (pt) 2016-01-12

Family

ID=29243236

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0309098A BRPI0309098B1 (pt) 2002-04-12 2003-04-11 método para produção de um aço inoxidável martensítico

Country Status (10)

Country Link
US (1) US7704338B2 (pt)
EP (1) EP1498501B1 (pt)
CN (1) CN1332044C (pt)
AU (1) AU2003236231A1 (pt)
BR (1) BRPI0309098B1 (pt)
CA (1) CA2481009C (pt)
MX (1) MXPA04010008A (pt)
RU (1) RU2279486C2 (pt)
WO (1) WO2003087415A1 (pt)
ZA (1) ZA200408698B (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4400423B2 (ja) * 2004-01-30 2010-01-20 Ｊｆｅスチール株式会社 マルテンサイト系ステンレス鋼管
EP2060644A4 (en) * 2006-08-22 2016-02-17 Nippon Steel & Sumitomo Metal Corp MARTENSITIC STAINLESS STEEL
JP5045178B2 (ja) * 2007-03-26 2012-10-10 住友金属工業株式会社 ラインパイプ用ベンド管の製造方法およびラインパイプ用ベンド管
US20110132501A1 (en) * 2008-09-04 2011-06-09 Jfe Steel Corporation Martensitic stainless steel seamless tube for oil country tubular goods and manufacturing method thereof
US20180237879A1 (en) * 2015-08-28 2018-08-23 Nippon Steel & Sumitomo Metal Corporation Stainless steel pipe and method of manufacturing the same
CN105617778B (zh) * 2015-12-31 2018-02-09 安徽省元琛环保科技有限公司 一种半自动式不锈钢钢圈滤袋及其生产方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3658514A (en) * 1968-10-08 1972-04-25 Allegheny Ludlum Steel Martensitic steel
SU1046323A1 (ru) 1979-06-04 1983-10-07 Предприятие П/Я Р-6209 Высокопрочна нержавеюща сталь мартенситного класса
JPS6230816A (ja) 1985-07-31 1987-02-09 Japan Steel Works Ltd:The 耐応力腐食割れ性に優れたマルテンサイト系ステンレス鋼の製造方法
JP3106674B2 (ja) * 1992-04-09 2000-11-06 住友金属工業株式会社 油井用マルテンサイト系ステンレス鋼
JP3201081B2 (ja) * 1993-07-26 2001-08-20 住友金属工業株式会社 油井用ステンレス鋼およびその製造方法
US5496421A (en) 1993-10-22 1996-03-05 Nkk Corporation High-strength martensitic stainless steel and method for making the same
CN1041642C (zh) * 1994-06-17 1999-01-13 株式会社日立制作所 高韧性13Cr5Ni系不锈钢及其用途
US5716465A (en) * 1994-09-30 1998-02-10 Nippon Steel Corporation High-corrosion-resistant martensitic stainless steel having excellent weldability and process for producing the same
JPH08260050A (ja) 1995-03-17 1996-10-08 Nippon Steel Corp 耐硫化物応力割れ性に優れた高強度マルテンサイト系ステンレス鋼継目無鋼管の製造方法
RU2136774C1 (ru) 1998-05-27 1999-09-10 Институт металлургии и материаловедения им.А.А.Байкова РАН Композиционный материал на основе алюминиевого сплава и способ его получения
JP3536687B2 (ja) * 1998-11-04 2004-06-14 Ｊｆｅスチール株式会社 高耐食性および高強度を有する低Ｃ高Ｃｒ合金鋼及びその製造方法
JP2000160300A (ja) 1998-11-27 2000-06-13 Nkk Corp 高耐食性を有する６５５Ｎｍｍ−２級低Ｃ高Ｃｒ合金油井管およびその製造方法
JP3539250B2 (ja) 1998-12-09 2004-07-07 Ｊｆｅスチール株式会社 高耐応力腐食割れ性を有する６５５Ｎｍｍ−２級低Ｃ高Ｃｒ合金油井管およびその製造方法
CN1087783C (zh) * 1999-07-05 2002-07-17 上海交通大学 马氏体不锈钢钢片综的热处理
JP3852248B2 (ja) * 1999-07-15 2006-11-29 Ｊｆｅスチール株式会社 耐応力腐食割れ性に優れたマルテンサイト系ステンレス鋼の製造方法
JP2002030392A (ja) * 2000-07-13 2002-01-31 Nippon Steel Corp 耐食性に優れた高Ｃｒマルテンサイトステンレス鋼及びその製造方法
RU2176674C1 (ru) 2001-03-01 2001-12-10 Федеральное государственное унитарное предприятие Центральный научно-исследовательский институт конструкционных материалов "Прометей" Способ термической обработки высокопрочных коррозионно-стойких хромоникелевых сталей мартенситного класса

Also Published As

Publication number Publication date
US20050034796A1 (en) 2005-02-17
CN1332044C (zh) 2007-08-15
CN1646710A (zh) 2005-07-27
RU2279486C2 (ru) 2006-07-10
US7704338B2 (en) 2010-04-27
CA2481009C (en) 2011-07-26
EP1498501A1 (en) 2005-01-19
CA2481009A1 (en) 2003-10-23
MXPA04010008A (es) 2005-07-01
BRPI0309098B1 (pt) 2016-01-12
AU2003236231A1 (en) 2003-10-27
EP1498501A4 (en) 2006-02-15
ZA200408698B (en) 2005-07-06
EP1498501B1 (en) 2015-04-08
WO2003087415A1 (en) 2003-10-23
RU2004133065A (ru) 2005-05-27

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: INDEFIRO O PEDIDO DE ACORDO COM O(S) ARTIGO(S) 8O E 13 DA LPI

B12B Appeal against refusal [chapter 12.2 patent gazette]
B25A Requested transfer of rights approved

Owner name: NIPPON STEEL CORPORATION (JP)

B25D Requested change of name of applicant approved

Owner name: NIPPON STEEL AND SUMITOMO METAL CORPORATION (JP)

B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 12/01/2016, OBSERVADAS AS CONDICOES LEGAIS.

B25D Requested change of name of applicant approved
B25K Entry of change of name and/or headquarter and transfer of application, patent and certificate of addition of invention: republication

Free format text: RETIFICADO O DESPACHO 25.4 PUBLICADO NA RPI 2543 DE 01/10/2019. ONDE SE LE: ?(?), SENDO ESTA PUBLICADA NA RPI NO 2542, DE 24/09/2019? LEIA-SE: ?(?), SENDO ESTA PUBLICADA NA RPI NO 2543, DE 01/10/2019?