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WO2008142275A8 - Acier micro-allié à bonne tenue à l'hydrogène pour le formage à froid de pièces mécaniques à hautes caractéristiques - Google Patents

Acier micro-allié à bonne tenue à l'hydrogène pour le formage à froid de pièces mécaniques à hautes caractéristiques Download PDF

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Publication number
WO2008142275A8
WO2008142275A8 PCT/FR2008/000496 FR2008000496W WO2008142275A8 WO 2008142275 A8 WO2008142275 A8 WO 2008142275A8 FR 2008000496 W FR2008000496 W FR 2008000496W WO 2008142275 A8 WO2008142275 A8 WO 2008142275A8
Authority
WO
WIPO (PCT)
Prior art keywords
cold
forming
good resistance
hydrogen
machine parts
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/FR2008/000496
Other languages
English (en)
Other versions
WO2008142275A3 (fr
WO2008142275A4 (fr
WO2008142275A2 (fr
Inventor
Automotive Lisi
Bernard Resiak
Mario Confente
René CATHIARD
Bernard Starck
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ArcelorMittal Gandrange SA
LISI Automotive SAS
Original Assignee
ArcelorMittal Gandrange SA
LISI Automotive SAS
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 ArcelorMittal Gandrange SA, LISI Automotive SAS filed Critical ArcelorMittal Gandrange SA
Priority to CN2008800093066A priority Critical patent/CN101688281B/zh
Priority to US12/594,944 priority patent/US9194018B2/en
Priority to EP08787931.8A priority patent/EP2134882B1/fr
Priority to JP2010502546A priority patent/JP5687898B2/ja
Publication of WO2008142275A2 publication Critical patent/WO2008142275A2/fr
Publication of WO2008142275A3 publication Critical patent/WO2008142275A3/fr
Publication of WO2008142275A4 publication Critical patent/WO2008142275A4/fr
Anticipated expiration legal-status Critical
Publication of WO2008142275A8 publication Critical patent/WO2008142275A8/fr
Ceased legal-status Critical Current

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
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • 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
    • C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
    • 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
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/18—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
    • C22C38/18—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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

L'acier selon l'invention se caractérise en ce que, afin de contenir sa teneur pondérale en molybdène en dessous de 0,45 %, sa composition chimique, outre le fer et les inévitables impuretés résiduelles résultant de l'élaboration de l'acier, répond à l'analyse suivante, donnée en pourcentages pondéraux: 0,3 ≤ C % ≤ 0,5 0,20 ≤ Mo % < 0,45; 0,4 ≤ Mn % ≤ 1,0; 0,4 ≤ Cr % ≤ 2,0; 0,04 ≤ Ni % ≤ 0.8 0,02 ≤ Nb % ≤ 0,045; 0,03 ≤ V % ≤ 0,30; 0,02 ≤ Ti % ≤ 0,05; avec Ti >3,5 N 0,003 ≤ B % ≤ 0,005 % S % ≤ 0,015 P % ≤ 0,015, et optionnellement 0,05 ≤ Si % ≤ 0,20; A1% ≤ 0,05 et N % ≤ 0,015;. Par formage à froid d'un fil-machine laminé à chaud issu de la coulée continue, il permet d'obtenir après traitement thermique, des pièces frappées 'prêtes à l'emploi', tels que des vis d'assemblage par exemple pour l'industrie automobile, offrant de 1200 à plus de 1500 MPa de résistance à la rupture tout en présentant une bonne tenue à la fragilisation par l'hydrogène, et ce avec un coût de production 'matière première' spécialement maîtrisé.
PCT/FR2008/000496 2007-04-12 2008-04-09 Acier micro-allié à bonne tenue à l'hydrogène pour le formage à froid de pièces mécaniques à hautes caractéristiques Ceased WO2008142275A2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN2008800093066A CN101688281B (zh) 2007-04-12 2008-04-09 用于冷成形高性能机器零件的具有良好耐氢性的微合金化钢
US12/594,944 US9194018B2 (en) 2007-04-12 2008-04-09 Microalloyed steel with good resistance to hydrogen for the cold-forming of machine parts having high properties
EP08787931.8A EP2134882B1 (fr) 2007-04-12 2008-04-09 Acier micro-allié à bonne tenue à l'hydrogène pour le formage à froid de pièces mécaniques à hautes caractéristiques
JP2010502546A JP5687898B2 (ja) 2007-04-12 2008-04-09 高い特性を有する機械部品の冷間形成用の良好な水素耐性を備えたマイクロ合金化鋼

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0702666 2007-04-12
FR0702666A FR2914929B1 (fr) 2007-04-12 2007-04-12 Acier a bonne tenue a l'hydrogene pour le formage de pieces mecaniques a tres hautes caracteristiques.

Publications (4)

Publication Number Publication Date
WO2008142275A2 WO2008142275A2 (fr) 2008-11-27
WO2008142275A3 WO2008142275A3 (fr) 2009-01-22
WO2008142275A4 WO2008142275A4 (fr) 2009-03-05
WO2008142275A8 true WO2008142275A8 (fr) 2009-10-15

Family

ID=38521328

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2008/000496 Ceased WO2008142275A2 (fr) 2007-04-12 2008-04-09 Acier micro-allié à bonne tenue à l'hydrogène pour le formage à froid de pièces mécaniques à hautes caractéristiques

Country Status (7)

Country Link
US (1) US9194018B2 (fr)
EP (1) EP2134882B1 (fr)
JP (1) JP5687898B2 (fr)
KR (1) KR20090128547A (fr)
CN (1) CN101688281B (fr)
FR (1) FR2914929B1 (fr)
WO (1) WO2008142275A2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101051241B1 (ko) * 2010-08-30 2011-07-21 유니슨 주식회사 경도 균일성 및 기계적 강도가 우수한 금형강 제조 방법
EP2628807A1 (fr) 2012-02-14 2013-08-21 Swiss Steel AG Elément de raccordement de type tige traité et son procédé de fabrication
CN105401072B (zh) * 2015-12-18 2018-01-02 马鞍山钢铁股份有限公司 含铌12.9级轨道交通移动装备用紧固件用钢及其热处理工艺
WO2021009543A1 (fr) * 2019-07-16 2021-01-21 Arcelormittal Procédé de production de pièce en acier et pièce en acier
US12054817B1 (en) 2020-11-10 2024-08-06 United States Of America, Represented By The Secretary Of The Navy High-strength and high-toughness austenitic steel
CN115404399B (zh) * 2021-05-28 2023-04-11 宝山钢铁股份有限公司 一种均质高强耐久螺栓用钢及其制备方法
EP4190934A1 (fr) 2021-12-02 2023-06-07 KAMAX Holding GmbH & Co. KG Composant en acier allié b-zr

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61130456A (ja) * 1984-11-29 1986-06-18 Honda Motor Co Ltd 高強度ボルト及びその製造方法
JP2614659B2 (ja) * 1989-05-31 1997-05-28 株式会社神戸製鋼所 耐遅れ破壊性及び冷間鍛造性を備えた高強度ボルト用鋼
JPH11270531A (ja) * 1998-03-19 1999-10-05 Nippon Steel Corp 遅れ破壊特性の優れた高強度ボルトおよびその製造方法
JP3718369B2 (ja) * 1999-05-13 2005-11-24 新日本製鐵株式会社 高強度ボルト用鋼及び高強度ボルトの製造方法
JP3857835B2 (ja) * 1999-07-26 2006-12-13 新日本製鐵株式会社 高強度ボルト用鋼及び高強度ボルトの製造方法
JP4142853B2 (ja) * 2001-03-22 2008-09-03 新日本製鐵株式会社 耐遅れ破壊特性に優れた高力ボルト
JP3905332B2 (ja) * 2001-07-10 2007-04-18 株式会社住友金属小倉 高強度ボルト用鋼
CN1266298C (zh) * 2004-09-14 2006-07-26 钢铁研究总院 耐延迟断裂和冷加工性能优良的高强度螺栓钢
JP4427012B2 (ja) * 2005-07-22 2010-03-03 新日本製鐵株式会社 耐遅れ破壊特性に優れた高強度ボルトおよびその製造方法

Also Published As

Publication number Publication date
JP5687898B2 (ja) 2015-03-25
FR2914929B1 (fr) 2010-10-29
WO2008142275A3 (fr) 2009-01-22
EP2134882B1 (fr) 2019-10-30
WO2008142275A4 (fr) 2009-03-05
FR2914929A1 (fr) 2008-10-17
CN101688281B (zh) 2012-11-21
US20100135745A1 (en) 2010-06-03
US9194018B2 (en) 2015-11-24
EP2134882A2 (fr) 2009-12-23
JP2010523825A (ja) 2010-07-15
KR20090128547A (ko) 2009-12-15
WO2008142275A2 (fr) 2008-11-27
CN101688281A (zh) 2010-03-31

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