BRPI0412092A - aço inoxidável dúplex - Google Patents

aço inoxidável dúplex

Info

Publication number
BRPI0412092A
BRPI0412092A BRPI0412092-2A BRPI0412092A BRPI0412092A BR PI0412092 A BRPI0412092 A BR PI0412092A BR PI0412092 A BRPI0412092 A BR PI0412092A BR PI0412092 A BRPI0412092 A BR PI0412092A
Authority
BR
Brazil
Prior art keywords
stainless steel
duplex stainless
maximum
inclusions
gross
Prior art date
Application number
BRPI0412092-2A
Other languages
English (en)
Inventor
Kazuhiro Ogawa
Tomohiko Omura
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 BRPI0412092A publication Critical patent/BRPI0412092A/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
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • 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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

"AçO INOXIDáVEL DúPLEX". A presente invenção refere-se a um aço inoxidável dúplex tendo excelente resistência às microfissurações e soldabilidade e particularmente um aço inoxidável dúplex que não forma compostos intermetálicos instantâneos mesmo em uma zona afetada pelo calor da solda. O aço tem uma composição química compreendendo C: no máximo 0,03%; Si: no máximo 1,0%; Mn: no máximo 1,5%; P no máximo 0,040%; S: no máximo 0,008%; Cr: 23,0 - 27,0%; Mo: 2,0 - 4,0%; Ni: 5,0 a 9,0%; W: maior que 1,5% até 5,0%; N: 0,24 - 0,35%; e um remanescente de Fe e impurezas que satisfazem as relações: PREW = Cr + 3,3 (Mo + 0,5W) + 16 N é pelo menos 40 e Mo + 1,1 Ni <243> 12,5 Mo - 0,8 Ni <243> -1,6 onde o número de inclusões brutas tendo a definição a seguir observadas em uma seção transversal é de no máximo 10 por mm¬ 2¬. Aqui, inclusões brutas são definidas como inclusões contendo pelo menos 20% em massa de AI e tendo um diâmetro principal de pelo menos 5 micrómetros.
BRPI0412092-2A 2003-06-30 2004-06-29 aço inoxidável dúplex BRPI0412092A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003188045 2003-06-30
PCT/JP2004/009511 WO2005001151A1 (ja) 2003-06-30 2004-06-29 二相ステンレス鋼

Publications (1)

Publication Number Publication Date
BRPI0412092A true BRPI0412092A (pt) 2006-09-05

Family

ID=33549741

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0412092-2A BRPI0412092A (pt) 2003-06-30 2004-06-29 aço inoxidável dúplex

Country Status (9)

Country Link
US (1) US20060191605A1 (pt)
EP (1) EP1645650A4 (pt)
JP (1) JP4265605B2 (pt)
KR (1) KR100704201B1 (pt)
CN (1) CN100497704C (pt)
AU (1) AU2004252373B2 (pt)
BR (1) BRPI0412092A (pt)
NO (1) NO20056009L (pt)
WO (1) WO2005001151A1 (pt)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE530847C2 (sv) * 2006-12-14 2008-09-30 Sandvik Intellectual Property Platta till plattvärmeväxlare, plattvärmeväxlare uppbyggd av sådana plattor samt användning av denna plattvärmeväxlare
SE531593C2 (sv) * 2007-10-26 2009-06-02 Sandvik Intellectual Property Värmeväxlare för fosforsyramiljö
AU2008330048B2 (en) 2007-11-29 2012-11-08 Ati Properties Llc Lean austenitic stainless steel
DK2245202T3 (da) 2007-12-20 2011-12-19 Ati Properties Inc Austenitisk rustfrit stål med lavt nikkelindhold indeholdende stabiliserende grundstoffer
US8337749B2 (en) 2007-12-20 2012-12-25 Ati Properties, Inc. Lean austenitic stainless steel
PL2229463T3 (pl) 2007-12-20 2018-01-31 Ati Properties Llc Odporna na korozję zubożona austenityczna stal nierdzewna
JP5018863B2 (ja) * 2009-11-13 2012-09-05 住友金属工業株式会社 耐アルカリ性に優れた二相ステンレス鋼
CN102296248B (zh) * 2011-08-29 2013-04-24 江苏九胜特钢制品有限公司 一种双相钨不锈钢合金材料及其制备方法
CN102296249A (zh) * 2011-08-29 2011-12-28 江苏九胜特钢制品有限公司 以钨代钼的双相不锈钢合金材料及其制备方法
JP6327633B2 (ja) * 2013-09-19 2018-05-23 セイコーインスツル株式会社 二相ステンレス鋼からなるダイヤフラム
CN103602915B (zh) * 2013-11-22 2015-11-18 山东建筑大学 高碳高铬双相不锈钢
EP3211107A4 (en) * 2014-10-24 2018-05-09 Nippon Steel & Sumitomo Metal Corporation Two-phase stainless steel and production method therefor
CN108048755B (zh) * 2017-11-10 2019-06-28 洛阳双瑞特种装备有限公司 一种用于流体输送的高硬度耐蚀铸造不锈钢
CN110016625B (zh) * 2019-05-15 2021-08-03 丹阳市华龙特钢有限公司 高纯净耐腐蚀合金材料
EP4234739A4 (en) 2020-10-23 2025-07-30 Nippon Steel Corp Two-phase stainless steel welded joint
CN113337779A (zh) * 2021-05-21 2021-09-03 烟台恒邦合金材料有限公司 一种耐磨耐腐蚀泵用不锈钢材料及其制备方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5079152A (en) * 1987-05-28 1992-01-07 Scripps Clinic And Research Foundation Antibody combining sites that exhibit stereoselective synthase activity, and methods using the same
JP2500162B2 (ja) * 1991-11-11 1996-05-29 住友金属工業株式会社 耐食性に優れた高強度二相ステンレス鋼
SE501321C2 (sv) * 1993-06-21 1995-01-16 Sandvik Ab Ferrit-austenitiskt rostfritt stål samt användning av stålet
JP3446294B2 (ja) * 1994-04-05 2003-09-16 住友金属工業株式会社 二相ステンレス鋼
DE69518354T2 (de) * 1994-05-21 2001-04-26 Yong Soo Park Rostfreier Duplex-Stahl mit hoher Korrosionsbeständigkeit
JPH0813094A (ja) * 1994-06-24 1996-01-16 Sumitomo Metal Mining Co Ltd 二相ステンレス鋳鋼およびその製法
JPH08176742A (ja) * 1994-12-27 1996-07-09 Sumitomo Metal Ind Ltd 硫化水素環境での耐食性に優れた２相ステンレス鋼
JP3241263B2 (ja) * 1996-03-07 2001-12-25 住友金属工業株式会社 高強度二相ステンレス鋼管の製造方法
JP3127822B2 (ja) * 1996-04-10 2001-01-29 住友金属工業株式会社 二相ステンレス鋼製継目無鋼管の製造方法
JPH1088288A (ja) * 1996-09-18 1998-04-07 Sumitomo Metal Ind Ltd 高純度ガス用二相ステンレス鋼材およびその製造方法
SE9902472L (sv) * 1999-06-29 2000-08-07 Sandvik Ab Ferrit-austenitisk stållegering
JP3534032B2 (ja) * 2000-02-03 2004-06-07 住友金属工業株式会社 ２相ステンレス鋼製鋼管の製造方法
JP3758508B2 (ja) * 2001-02-13 2006-03-22 住友金属工業株式会社 二相ステンレス鋼管の製造方法
SE524951C2 (sv) * 2001-09-02 2004-10-26 Sandvik Ab Användning av en duplex rostfri stållegering

Also Published As

Publication number Publication date
AU2004252373B2 (en) 2007-02-22
US20060191605A1 (en) 2006-08-31
JP4265605B2 (ja) 2009-05-20
EP1645650A4 (en) 2007-07-25
NO20056009L (no) 2006-01-11
CN1816640A (zh) 2006-08-09
KR100704201B1 (ko) 2007-04-09
AU2004252373A1 (en) 2005-01-06
KR20060026898A (ko) 2006-03-24
EP1645650A1 (en) 2006-04-12
CN100497704C (zh) 2009-06-10
WO2005001151A1 (ja) 2005-01-06
JPWO2005001151A1 (ja) 2006-08-10

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Legal Events

Date Code Title Description
B07A Technical examination (opinion): publication of 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

B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: MANTIDO O INDEFERIMENTO UMA VEZ QUE NAO FOI APRESENTADO RECURSO DENTRO DO PRAZO LEGAL.