DE60220749D1 - Steel with excellent properties, moldability with machine tools, after heat treatment, excellent mechanical properties and process for its preparation - Google Patents

Steel with excellent properties, moldability with machine tools, after heat treatment, excellent mechanical properties and process for its preparation

Info

Publication number
DE60220749D1
DE60220749D1 DE60220749T DE60220749T DE60220749D1 DE 60220749 D1 DE60220749 D1 DE 60220749D1 DE 60220749 T DE60220749 T DE 60220749T DE 60220749 T DE60220749 T DE 60220749T DE 60220749 D1 DE60220749 D1 DE 60220749D1
Authority
DE
Germany
Prior art keywords
weight
properties
steel
moldability
preparation
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.)
Expired - Lifetime
Application number
DE60220749T
Other languages
German (de)
Other versions
DE60220749T2 (en
Inventor
Andrea Ghidini
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.)
Lucchini Rs SpA Brescia It
Original Assignee
LUCCHINI SIDERMECCANICA SpA
LUCCHINI SIDERMECCANICA SpA
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 SpA, LUCCHINI SIDERMECCANICA SpA filed Critical LUCCHINI SIDERMECCANICA SpA
Publication of DE60220749D1 publication Critical patent/DE60220749D1/en
Application granted granted Critical
Publication of DE60220749T2 publication Critical patent/DE60220749T2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C22C38/40—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)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Moulds For Moulding Plastics Or The Like (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>
DE60220749T 2001-07-02 2002-05-21 Steel with excellent properties, moldability with machine tools, after heat treatment, excellent mechanical properties and process for its preparation Expired - Lifetime DE60220749T2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI20011402 2001-07-02
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 (2)

Publication Number Publication Date
DE60220749D1 true DE60220749D1 (en) 2007-08-02
DE60220749T2 DE60220749T2 (en) 2008-03-06

Family

ID=11447984

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60220749T Expired - Lifetime DE60220749T2 (en) 2001-07-02 2002-05-21 Steel with excellent properties, moldability with machine tools, after heat treatment, excellent mechanical properties and process for its preparation

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
ES2289028T3 (en) 2008-02-01
ATE365235T1 (en) 2007-07-15
DE60220749T2 (en) 2008-03-06
EP1283277B1 (en) 2007-06-20
EP1283277A1 (en) 2003-02-12
ITMI20011402A1 (en) 2003-01-02
PT1283277E (en) 2007-09-27
ITMI20011402A0 (en) 2001-07-02

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: LUCCHINI RS S.P.A., BRESCIA, IT