ATE365235T1 - STEEL WITH EXCELLENT PROPERTIES, FORMABILITY WITH MACHINE TOOLS, AFTER HARDENING HEAT TREATMENT, EXCELLENT MECHANICAL PROPERTIES AND PROCESS FOR ITS PRODUCTION - Google Patents

STEEL WITH EXCELLENT PROPERTIES, FORMABILITY WITH MACHINE TOOLS, AFTER HARDENING HEAT TREATMENT, EXCELLENT MECHANICAL PROPERTIES AND PROCESS FOR ITS PRODUCTION

Info

Publication number
ATE365235T1
ATE365235T1 AT02010286T AT02010286T ATE365235T1 AT E365235 T1 ATE365235 T1 AT E365235T1 AT 02010286 T AT02010286 T AT 02010286T AT 02010286 T AT02010286 T AT 02010286T AT E365235 T1 ATE365235 T1 AT E365235T1
Authority
AT
Austria
Prior art keywords
properties
weight
steel
formability
production
Prior art date
Application number
AT02010286T
Other languages
German (de)
Inventor
Andrea Ghidini
Original Assignee
Lucchini Sidermeccanica S P A
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 Lucchini Sidermeccanica S P A filed Critical Lucchini Sidermeccanica S P A
Application granted granted Critical
Publication of ATE365235T1 publication Critical patent/ATE365235T1/en

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
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Articles (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)

Abstract

A steel having excellent workability properties by machine-tools and, after a hardening thermal treatment, excellent mechanical properties and almost non existent size variations and internal tensions, comprising an amount lower than 0.25% by weight of carbon; 2,5 to 4,5% by weight of nickel; 2,5 to 4,55 by weight of molybdenum; an amount lower than 0.25% by weight of vanadium and amounts comprised between 0 and 1,1% by weight of at least one of the elements selected from manganese, silicon and chromium; the remaining up to 100 being iron, impurities excluded. <IMAGE>
AT02010286T 2001-07-02 2002-05-21 STEEL WITH EXCELLENT PROPERTIES, FORMABILITY WITH MACHINE TOOLS, AFTER HARDENING HEAT TREATMENT, EXCELLENT MECHANICAL PROPERTIES AND PROCESS FOR ITS PRODUCTION ATE365235T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2001MI001402A ITMI20011402A1 (en) 2001-07-02 2001-07-02 STEEL WITH EXCELLENT WORKABILITY PROPERTIES TO MACHINE TOOLS AND AFTER HARDENING HEAT TREATMENT EXCELLENT MECHANICAL PROPERTIES

Publications (1)

Publication Number Publication Date
ATE365235T1 true ATE365235T1 (en) 2007-07-15

Family

ID=11447984

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02010286T ATE365235T1 (en) 2001-07-02 2002-05-21 STEEL WITH EXCELLENT PROPERTIES, FORMABILITY WITH MACHINE TOOLS, AFTER HARDENING HEAT TREATMENT, EXCELLENT MECHANICAL PROPERTIES AND PROCESS FOR ITS PRODUCTION

Country Status (6)

Country Link
EP (1) EP1283277B1 (en)
AT (1) ATE365235T1 (en)
DE (1) DE60220749T2 (en)
ES (1) ES2289028T3 (en)
IT (1) ITMI20011402A1 (en)
PT (1) PT1283277E (en)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2624687A (en) * 1949-01-03 1953-01-06 Bower Roller Bearing Co Process of heat-treating alloy steel
US2707680A (en) * 1952-08-29 1955-05-03 Heppenstall Co Alloy of iron, nickel, and molybdenum
GB753491A (en) * 1953-07-30 1956-07-25 Heppenstall Co Improvements in or relating to iron, nickel and molybdenum steel alloy and articles made therefrom
SE363351B (en) * 1972-05-26 1974-01-14 Stora Kopparbergs Bergslags Ab
US3912553A (en) * 1973-10-10 1975-10-14 Finkl & Sons Co Press forging die
US3954517A (en) * 1975-07-22 1976-05-04 The Timken Company Method for making carburized bearing members
JPH0250910A (en) * 1988-08-15 1990-02-20 Nippon Steel Corp Production of steel plate for die having good heat fatigue characteristic
JP2881869B2 (en) * 1989-12-06 1999-04-12 大同特殊鋼株式会社 Steel for plastic molds with excellent weldability
FR2666351B1 (en) * 1990-08-29 1993-11-12 Creusot Loire Industrie PROCESS FOR THE DEVELOPMENT OF A TOOL STEEL, ESPECIALLY FOR THE MANUFACTURE OF MOLDS AND STEEL OBTAINED BY THIS PROCESS.
JP3066998B2 (en) * 1992-06-11 2000-07-17 株式会社日本製鋼所 Method of manufacturing high-low pressure integrated turbine rotor
FR2726287B1 (en) * 1994-10-31 1997-01-03 Creusot Loire LOW ALLOY STEEL FOR THE MANUFACTURE OF MOLDS FOR PLASTICS OR FOR RUBBER
KR100374980B1 (en) * 1999-02-12 2003-03-06 히다찌긴조꾸가부시끼가이사 High strength steel for dies with excellent machinability

Also Published As

Publication number Publication date
EP1283277A1 (en) 2003-02-12
ITMI20011402A0 (en) 2001-07-02
EP1283277B1 (en) 2007-06-20
ITMI20011402A1 (en) 2003-01-02
DE60220749D1 (en) 2007-08-02
PT1283277E (en) 2007-09-27
DE60220749T2 (en) 2008-03-06
ES2289028T3 (en) 2008-02-01

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