ATE468412T1 - Nahtlose präzisionsstahlrohre mit verbesserter isotroper schlagzähigkeit bei niedriger temperatur für hydraulische zylinder und herstellungsverfahren dafür - Google Patents

Nahtlose präzisionsstahlrohre mit verbesserter isotroper schlagzähigkeit bei niedriger temperatur für hydraulische zylinder und herstellungsverfahren dafür

Info

Publication number
ATE468412T1
ATE468412T1 AT06763964T AT06763964T ATE468412T1 AT E468412 T1 ATE468412 T1 AT E468412T1 AT 06763964 T AT06763964 T AT 06763964T AT 06763964 T AT06763964 T AT 06763964T AT E468412 T1 ATE468412 T1 AT E468412T1
Authority
AT
Austria
Prior art keywords
low temperature
impact resistance
hydraulic cylinders
manufacturing processes
steel tubes
Prior art date
Application number
AT06763964T
Other languages
English (en)
Inventor
Gianmario Agazzi
Bagliani Emanuele Paravicini
Andrea Poli
Original Assignee
Tenaris Connections Ag
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 Tenaris Connections Ag filed Critical Tenaris Connections Ag
Application granted granted Critical
Publication of ATE468412T1 publication Critical patent/ATE468412T1/de

Links

Classifications

    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/10—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C21D1/185—Hardening; Quenching with or without subsequent tempering from an intercritical temperature
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12292—Workpiece with longitudinal passageway or stopweld material [e.g., for tubular stock, etc.]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Articles (AREA)
AT06763964T 2006-06-29 2006-06-29 Nahtlose präzisionsstahlrohre mit verbesserter isotroper schlagzähigkeit bei niedriger temperatur für hydraulische zylinder und herstellungsverfahren dafür ATE468412T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2006/063701 WO2008000300A1 (en) 2006-06-29 2006-06-29 Seamless precision steel tubes with improved isotropic toughness at low temperature for hydraulic cylinders and process for obtaining the same

Publications (1)

Publication Number Publication Date
ATE468412T1 true ATE468412T1 (de) 2010-06-15

Family

ID=37833537

Family Applications (1)

Application Number Title Priority Date Filing Date
AT06763964T ATE468412T1 (de) 2006-06-29 2006-06-29 Nahtlose präzisionsstahlrohre mit verbesserter isotroper schlagzähigkeit bei niedriger temperatur für hydraulische zylinder und herstellungsverfahren dafür

Country Status (12)

Country Link
US (1) US8926771B2 (de)
EP (1) EP2044228B1 (de)
JP (1) JP2009541589A (de)
KR (1) KR101340165B1 (de)
CN (1) CN101506392B (de)
AR (1) AR061657A1 (de)
AT (1) ATE468412T1 (de)
BR (1) BRPI0621843B1 (de)
CL (1) CL2007001903A1 (de)
DE (1) DE602006014451D1 (de)
MX (1) MX2009000219A (de)
WO (1) WO2008000300A1 (de)

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US8926771B2 (en) 2015-01-06
KR101340165B1 (ko) 2013-12-10
CN101506392A (zh) 2009-08-12
AR061657A1 (es) 2008-09-10
BRPI0621843A2 (pt) 2011-12-20
MX2009000219A (es) 2009-03-20
DE602006014451D1 (de) 2010-07-01
WO2008000300A1 (en) 2008-01-03
CN101506392B (zh) 2011-01-26
JP2009541589A (ja) 2009-11-26
KR20090042238A (ko) 2009-04-29
CL2007001903A1 (es) 2008-05-02
US20100068549A1 (en) 2010-03-18
EP2044228A1 (de) 2009-04-08
EP2044228B1 (de) 2010-05-19

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