CA2441720A1 - Tuyau d'acier a haute resistance aux chocs et methode de fabrication - Google Patents

Tuyau d'acier a haute resistance aux chocs et methode de fabrication Download PDF

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Publication number
CA2441720A1
CA2441720A1 CA002441720A CA2441720A CA2441720A1 CA 2441720 A1 CA2441720 A1 CA 2441720A1 CA 002441720 A CA002441720 A CA 002441720A CA 2441720 A CA2441720 A CA 2441720A CA 2441720 A1 CA2441720 A1 CA 2441720A1
Authority
CA
Canada
Prior art keywords
steel pipe
highly impact
tensile strength
resistant
resistant steel
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.)
Granted
Application number
CA002441720A
Other languages
English (en)
Other versions
CA2441720C (fr
Inventor
Takashi Motoyoshi
Hiroto Tanabe
Isao Anai
Itsurou Hiroshige
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
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
Priority claimed from JP2002374010A external-priority patent/JP2003328082A/ja
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of CA2441720A1 publication Critical patent/CA2441720A1/fr
Application granted granted Critical
Publication of CA2441720C publication Critical patent/CA2441720C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/008—Martensite
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium

Landscapes

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

Abstract

La présente invention concerne : un élément à haute résistance aux chocs ayant une forme en coupe ronde ou carrée, qui présente une excellente résistance et ténacité, qui ne subit aucune détérioration de la tenacité près de la partie soudée, et un tuyau d'acier à haute résistance aux chocs ayant une résistance à la traction TS de 1 700 MPa ou plus et un rapport de rendement YR de 72 % ou moins, ledit rapport de rendement étant le rapport entre une limite d'élasticité YS de 0,1 % et une résistance à la traction TS (YS/TS). La ténacité de la partie soudée du tuyau en acier est améliorée en contrôlant la quantité de Si dans l'acier dudit tuyau d'acier dans la plage de Mn/ 8 - 0,07 à Mn/8 + 0,07. Ledit acier contient, en masse, 0,19 à 0,35 % de C, 0,10 à 0,30 de Si, 0,5 à 1,60 de Mn, pas plus de 0,025 de P, pas plus de 0,01 de S, 0,010 à 0,050 d'Al, 2 à 35 ppm de B et 0,005 à 0,05 de Ti en tant que composants indispensables. Ledit tuyau en acier selon la présente invention comprend un acier dans lequel 95 % ou plus de la microstructure de l'acier est transformée en martensite en soumettant ledit tuyau d'acier au chauffage par induction et ensuite en le trempant à une vitesse de refroidissement de 100.degrés.C ou plus, et la taille de grain austénitique préalable dudit acier de 6 ou plus. La présente invention concerne également des procédés de fabrication dudit tuyau en acier.
CA002441720A 2002-12-25 2003-09-19 Tuyau d'acier a haute resistance aux chocs et methode de fabrication Expired - Fee Related CA2441720C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002374010A JP2003328082A (ja) 2002-03-08 2002-12-25 高耐衝撃性電縫鋼管
JP2002-374010 2002-12-25

Publications (2)

Publication Number Publication Date
CA2441720A1 true CA2441720A1 (fr) 2004-06-25
CA2441720C CA2441720C (fr) 2009-12-15

Family

ID=32588432

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002441720A Expired - Fee Related CA2441720C (fr) 2002-12-25 2003-09-19 Tuyau d'acier a haute resistance aux chocs et methode de fabrication

Country Status (3)

Country Link
KR (1) KR100563998B1 (fr)
CN (1) CN1312006C (fr)
CA (1) CA2441720C (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103952640B (zh) * 2014-04-26 2017-03-15 广东韶钢松山股份有限公司 一种35MnB钢及其制备方法
CN104117824A (zh) * 2014-07-22 2014-10-29 上海加宁新技术研究所 超高压无缝合金钢管的制造方法
KR101665819B1 (ko) 2014-12-24 2016-10-13 주식회사 포스코 열처리 강재, 내구특성이 우수한 초고강도 성형품 및 그 제조방법
US10961599B2 (en) 2016-07-20 2021-03-30 Hyundai Motor Company Lightweight door beam, composition thereof and method of manufacturing the same
CN106929772B (zh) * 2017-03-14 2019-04-23 河北工业大学 一种钢棒用钢及其制备方法和钢棒
CN113308648B (zh) * 2021-05-14 2022-11-15 唐山钢铁集团高强汽车板有限公司 一种冷轧马氏体钢基板及其生产方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0681078A (ja) * 1992-07-09 1994-03-22 Sumitomo Metal Ind Ltd 低降伏比高強度鋼材およびその製造方法
JPH06179945A (ja) * 1992-12-15 1994-06-28 Nippon Steel Corp 延性の優れたＣｒ−Ｍｏ系超高張力電縫鋼管
JP3683378B2 (ja) * 1997-04-30 2005-08-17 Ｊｆｅスチール株式会社 高靱性高延性鋼管の製造方法
JPH1150148A (ja) * 1997-08-06 1999-02-23 Sumitomo Metal Ind Ltd 高強度高耐食継目無鋼管の製造方法
JP3921808B2 (ja) * 1998-04-30 2007-05-30 住友金属工業株式会社 低温靭性に優れた高強度マルテンサイト系ステンレス鋼管およびその製造法
JP3563988B2 (ja) * 1999-02-01 2004-09-08 新日本製鐵株式会社 液圧成形性に優れた高強度鋼管
JP4288441B2 (ja) * 2000-03-22 2009-07-01 住友金属工業株式会社 靭性、延性、溶接性に優れた高張力継目無鋼管およびその製造方法

Also Published As

Publication number Publication date
KR20040057897A (ko) 2004-07-02
CN1509922A (zh) 2004-07-07
CN1312006C (zh) 2007-04-25
CA2441720C (fr) 2009-12-15
KR100563998B1 (ko) 2006-03-29

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