BR0308848A - Aço de baixa liga - Google Patents

Aço de baixa liga

Info

Publication number
BR0308848A
BR0308848A BR0308848-0A BR0308848A BR0308848A BR 0308848 A BR0308848 A BR 0308848A BR 0308848 A BR0308848 A BR 0308848A BR 0308848 A BR0308848 A BR 0308848A
Authority
BR
Brazil
Prior art keywords
low alloy
alloy steel
inclusions
pitting corrosion
impurities
Prior art date
Application number
BR0308848-0A
Other languages
English (en)
Other versions
BR0308848B1 (pt
Inventor
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 BR0308848A publication Critical patent/BR0308848A/pt
Publication of BR0308848B1 publication Critical patent/BR0308848B1/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
    • C22C38/02—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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
    • 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
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium

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)
  • Laminated Bodies (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

"AçO DE BAIXA LIGA". A presente invenção refere-se a um aço de baixa liga, caracterizado por consistir em, % em massa, C: 0,2-0,55%, Si: 0,05-0,5%, Mn: 0,1-1%, S: 0,0005-0,01%, O (Oxigênio): 0,0010-0,01%, AI: 0,005-0,05%, Ca: 0,0003-0,007%, Ti: 0,005-0,05%, Cr: 0,1-1,5%, Mo: 0,1-1% e Nb: 0,0050,1%, e Fe e impurezas como balanço; e também caracterizado pelas impurezas cujos teores restringem-se a P <sym> 0,03% e N <sym> 0,015%; e adicionalmente caracterizado por conter compósitos de inclusões não maiores que 7 <109>m no eixo principal com uma freq³ência de aparecimento não menor que 10 pedaços de compósitos por 0,1 mm^ 2^ da seção transversal do aço, onde o compósito compreende uma casca externa de carbonitreto de Ti e/ou Nb que circunda um núcleo de oxissulfeto de Al e Ca. O aço de baixa liga suprime corrosão por pite causada por inclusões e suprime SSC induzida por corrosão por pite.
BRPI0308848-0A 2002-03-29 2003-03-26 aço de baixa liga e método de produção do mesmo. BR0308848B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2002-93788 2002-03-29
JP2002093788 2002-03-29
PCT/JP2003/003748 WO2003083152A1 (fr) 2002-03-29 2003-03-26 Acier a alliage faible

Publications (2)

Publication Number Publication Date
BR0308848A true BR0308848A (pt) 2005-01-04
BR0308848B1 BR0308848B1 (pt) 2012-01-10

Family

ID=28671766

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0308848-0A BR0308848B1 (pt) 2002-03-29 2003-03-26 aço de baixa liga e método de produção do mesmo.

Country Status (11)

Country Link
US (1) US7074283B2 (pt)
EP (1) EP1496131B1 (pt)
CN (1) CN1327023C (pt)
AT (1) ATE405684T1 (pt)
AU (1) AU2003227225B2 (pt)
BR (1) BR0308848B1 (pt)
CA (1) CA2477420C (pt)
DE (1) DE60323076D1 (pt)
MX (1) MXPA04009375A (pt)
NO (1) NO338748B1 (pt)
WO (1) WO2003083152A1 (pt)

Families Citing this family (35)

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Publication number Priority date Publication date Assignee Title
EP1627931B1 (en) * 2003-04-25 2017-05-31 Tubos De Acero De Mexico, S.A. Seamless steel tube which is intended to be used as a guide pipe and production method thereof
EP1728877B9 (en) * 2004-03-24 2012-02-01 Sumitomo Metal Industries, Ltd. Process for producing low-alloy steel excelling in corrosion resistance
JP4135691B2 (ja) * 2004-07-20 2008-08-20 住友金属工業株式会社 窒化物系介在物形態制御鋼
JP4609138B2 (ja) 2005-03-24 2011-01-12 住友金属工業株式会社 耐硫化物応力割れ性に優れた油井管用鋼および油井用継目無鋼管の製造方法
WO2008000300A1 (en) * 2006-06-29 2008-01-03 Tenaris Connections Ag Seamless precision steel tubes with improved isotropic toughness at low temperature for hydraulic cylinders and process for obtaining the same
AU2008227408B2 (en) * 2007-03-30 2010-04-29 Nippon Steel Corporation Low alloy steel for oil country tubular goods and seamless steel pipe
MX2007004600A (es) * 2007-04-17 2008-12-01 Tubos De Acero De Mexico S A Un tubo sin costura para la aplicación como secciones verticales de work-over.
US7862667B2 (en) 2007-07-06 2011-01-04 Tenaris Connections Limited Steels for sour service environments
JP4251229B1 (ja) 2007-09-19 2009-04-08 住友金属工業株式会社 高圧水素ガス環境用低合金鋼および高圧水素用容器
MX2010005532A (es) * 2007-11-19 2011-02-23 Tenaris Connections Ltd Acero bainítico de alta resistencia para aplicaciones octg.
MX2009012811A (es) * 2008-11-25 2010-05-26 Maverick Tube Llc Procesamiento de desbastes delgados o flejes compactos de aceros al boro/titanio.
FR2939449B1 (fr) 2008-12-09 2011-03-18 Vallourec Mannesmann Oil & Gas France Acier faiblement allie a limite d'elasticite elevee et haute resistance a la fissuration sous contrainte par les sulfures.
EP2325435B2 (en) 2009-11-24 2020-09-30 Tenaris Connections B.V. Threaded joint sealed to [ultra high] internal and external pressures
EP2581463B1 (en) * 2010-06-08 2017-01-18 Nippon Steel & Sumitomo Metal Corporation Steel for steel pipe having excellent sulfide stress cracking resistance
US9163296B2 (en) 2011-01-25 2015-10-20 Tenaris Coiled Tubes, Llc Coiled tube with varying mechanical properties for superior performance and methods to produce the same by a continuous heat treatment
IT1403689B1 (it) 2011-02-07 2013-10-31 Dalmine Spa Tubi in acciaio ad alta resistenza con eccellente durezza a bassa temperatura e resistenza alla corrosione sotto tensioni da solfuri.
IT1403688B1 (it) 2011-02-07 2013-10-31 Dalmine Spa Tubi in acciaio con pareti spesse con eccellente durezza a bassa temperatura e resistenza alla corrosione sotto tensione da solfuri.
US8414715B2 (en) 2011-02-18 2013-04-09 Siderca S.A.I.C. Method of making ultra high strength steel having good toughness
US8636856B2 (en) 2011-02-18 2014-01-28 Siderca S.A.I.C. High strength steel having good toughness
US9051634B2 (en) * 2011-10-25 2015-06-09 Nippon Steel & Sumitomo Metal Corporation Steel sheet
US9340847B2 (en) 2012-04-10 2016-05-17 Tenaris Connections Limited Methods of manufacturing steel tubes for drilling rods with improved mechanical properties, and rods made by the same
CN102733759A (zh) * 2012-06-27 2012-10-17 葫芦岛龙源采油配套设备有限公司 一种设有弧面球头杆头的抽油杆
US9970242B2 (en) 2013-01-11 2018-05-15 Tenaris Connections B.V. Galling resistant drill pipe tool joint and corresponding drill pipe
US9187811B2 (en) 2013-03-11 2015-11-17 Tenaris Connections Limited Low-carbon chromium steel having reduced vanadium and high corrosion resistance, and methods of manufacturing
US9803256B2 (en) 2013-03-14 2017-10-31 Tenaris Coiled Tubes, Llc High performance material for coiled tubing applications and the method of producing the same
EP2789701A1 (en) 2013-04-08 2014-10-15 DALMINE S.p.A. High strength medium wall quenched and tempered seamless steel pipes and related method for manufacturing said steel pipes
EP2789700A1 (en) 2013-04-08 2014-10-15 DALMINE S.p.A. Heavy wall quenched and tempered seamless steel pipes and related method for manufacturing said steel pipes
JP6144417B2 (ja) 2013-06-25 2017-06-07 テナリス・コネクシヨンズ・ベー・ブイ 高クロム耐熱鋼
CN103627967A (zh) * 2013-11-12 2014-03-12 铜陵市肆得科技有限责任公司 一种泵壳用耐磨合金钢材料及其制备方法
CN104195464A (zh) * 2014-07-24 2014-12-10 安徽广源科技发展有限公司 一种矿山用高铬合金钢及其制造方法
EP3231884B1 (en) * 2014-12-12 2021-08-18 Nippon Steel Corporation Low-alloy steel oil well pipe and method for manufacturing a low-alloy steel oil well pipe
US20160305192A1 (en) * 2015-04-14 2016-10-20 Tenaris Connections Limited Ultra-fine grained steels having corrosion-fatigue resistance
US11124852B2 (en) 2016-08-12 2021-09-21 Tenaris Coiled Tubes, Llc Method and system for manufacturing coiled tubing
US10434554B2 (en) 2017-01-17 2019-10-08 Forum Us, Inc. Method of manufacturing a coiled tubing string
WO2019032121A1 (en) * 2017-08-11 2019-02-14 Weatherford Technology Holdings, Llc CORROSION RESISTANT PUMP ROD

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5741354A (en) * 1980-08-27 1982-03-08 Daido Steel Co Ltd Superhigh strength steel
JPS61124554A (ja) * 1984-11-20 1986-06-12 Nippon Steel Corp 耐サワ−性の優れた高靭性電縫鋼管用鋼
JPH0756046B2 (ja) * 1989-04-08 1995-06-14 株式会社神戸製鋼所 含ｂ鋼の製造方法
JPH02290947A (ja) * 1989-05-01 1990-11-30 Nippon Steel Corp 耐サワー性の優れた高靭性電縫鋼管用鋼板
JPH0756046A (ja) 1993-08-10 1995-03-03 Sumitomo Electric Ind Ltd 光ファイバ補強構造
WO1996036742A1 (fr) * 1995-05-15 1996-11-21 Sumitomo Metal Industries, Ltd. Procede de production de tubes d'acier sans soudure a haute resistance, non susceptibles de fissuration par les composes soufres
JP3562353B2 (ja) 1998-12-09 2004-09-08 住友金属工業株式会社 耐硫化物応力腐食割れ性に優れる油井用鋼およびその製造方法
JP4058840B2 (ja) * 1999-04-09 2008-03-12 住友金属工業株式会社 靭性と耐硫化物応力腐食割れ性に優れる油井用鋼およびその製造方法
JP2000297334A (ja) 1999-04-14 2000-10-24 Sekisui Chem Co Ltd 焼結多孔質体の製造方法および焼結多孔質体
JP4367588B2 (ja) * 1999-10-28 2009-11-18 住友金属工業株式会社 耐硫化物応力割れ性に優れた鋼管
JP3543708B2 (ja) * 1999-12-15 2004-07-21 住友金属工業株式会社 耐硫化物応力腐食割れ性に優れた油井用鋼材およびそれを用いた油井用鋼管の製造方法
JP7056046B2 (ja) * 2017-09-12 2022-04-19 株式会社明電舎 盤

Also Published As

Publication number Publication date
BR0308848B1 (pt) 2012-01-10
CA2477420A1 (en) 2003-10-09
AU2003227225B2 (en) 2006-04-27
AU2003227225A1 (en) 2003-10-13
DE60323076D1 (de) 2008-10-02
EP1496131A4 (en) 2005-04-13
CN1327023C (zh) 2007-07-18
US7074283B2 (en) 2006-07-11
WO2003083152A1 (fr) 2003-10-09
ATE405684T1 (de) 2008-09-15
CN1643174A (zh) 2005-07-20
MXPA04009375A (es) 2005-05-17
NO338748B1 (no) 2016-10-17
US20040187971A1 (en) 2004-09-30
EP1496131B1 (en) 2008-08-20
EP1496131A1 (en) 2005-01-12
NO20043987L (no) 2004-09-23
CA2477420C (en) 2007-09-25

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 26/03/2003, OBSERVADAS AS CONDICOES LEGAIS.

B25A Requested transfer of rights approved
B25D Requested change of name of applicant approved
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?