ATE283381T1 - LOW ALLOY AND HEAT RESISTANT STEEL, HEAT TREATMENT METHOD AND TURBINE ROTOR - Google Patents

LOW ALLOY AND HEAT RESISTANT STEEL, HEAT TREATMENT METHOD AND TURBINE ROTOR

Info

Publication number
ATE283381T1
ATE283381T1 AT02017458T AT02017458T ATE283381T1 AT E283381 T1 ATE283381 T1 AT E283381T1 AT 02017458 T AT02017458 T AT 02017458T AT 02017458 T AT02017458 T AT 02017458T AT E283381 T1 ATE283381 T1 AT E283381T1
Authority
AT
Austria
Prior art keywords
heat
low
alloy steel
turbine rotor
treatment method
Prior art date
Application number
AT02017458T
Other languages
German (de)
Inventor
Akitsugu Fujita
Masatomo Kamada
Original Assignee
Mitsubishi Heavy Ind Ltd
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 Mitsubishi Heavy Ind Ltd filed Critical Mitsubishi Heavy Ind Ltd
Application granted granted Critical
Publication of ATE283381T1 publication Critical patent/ATE283381T1/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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
    • 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
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • 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
    • C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
    • 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
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/38—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for roll bodies

Landscapes

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

Abstract

In the field of CrMoV heat-resistant alloys for use in turbine rotors, in order to provide a low-alloy steel which has a toughness at the same level as conventional materials and has excellent high-temperature strength properties, particularly inhibition of creep embrittlement, and in order to provide a process for producing such a low-alloy steel and a turbine rotor in which such a low-alloy steel is used, trace impurities of phosphorus, sulfur, copper, aluminium, arsenic, tin, and antimony in a CrMoV heat-resistant alloy are reduced to specific levels or lower. In addition, trace impurities such as cobalt, niobium, tantalum, nitrogen, and boron are added to increase the creep strength according to a test using an unnotched test piece. In addition, according to the production process, quenching is carried out after heating to 1000 DEG C or higher so as to inhibit precipitation of pro-eutectoid ferrite phase.
AT02017458T 1999-10-04 2000-09-29 LOW ALLOY AND HEAT RESISTANT STEEL, HEAT TREATMENT METHOD AND TURBINE ROTOR ATE283381T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28355199 1999-10-04

Publications (1)

Publication Number Publication Date
ATE283381T1 true ATE283381T1 (en) 2004-12-15

Family

ID=17667000

Family Applications (2)

Application Number Title Priority Date Filing Date
AT02017458T ATE283381T1 (en) 1999-10-04 2000-09-29 LOW ALLOY AND HEAT RESISTANT STEEL, HEAT TREATMENT METHOD AND TURBINE ROTOR
AT00308591T ATE252652T1 (en) 1999-10-04 2000-09-29 LOW ALLOY STEEL, METHOD FOR PRODUCING SAME AND TURBINE ROTOR

Family Applications After (1)

Application Number Title Priority Date Filing Date
AT00308591T ATE252652T1 (en) 1999-10-04 2000-09-29 LOW ALLOY STEEL, METHOD FOR PRODUCING SAME AND TURBINE ROTOR

Country Status (3)

Country Link
EP (2) EP1275745B1 (en)
AT (2) ATE283381T1 (en)
DE (2) DE60006051T2 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2364715B (en) * 2000-07-13 2004-06-30 Toshiba Kk Heat resistant steel casting and method of manufacturing the same
JP3955719B2 (en) * 2000-07-27 2007-08-08 株式会社東芝 Heat resistant steel, heat treatment method of heat resistant steel and heat resistant steel parts
JP3439197B2 (en) 2001-03-06 2003-08-25 三菱重工業株式会社 Low alloy heat resistant steel, heat treatment method thereof, and turbine rotor
DE10244972B4 (en) * 2002-03-26 2013-02-28 The Japan Steel Works, Ltd. Heat resistant steel and method of making the same
DE602004028575D1 (en) 2003-01-24 2010-09-23 Ellwood Nat Forge Co Eglin steel - a low alloy high strength composite
JP4266194B2 (en) * 2004-09-16 2009-05-20 株式会社東芝 Heat resistant steel, heat treatment method for heat resistant steel, and steam turbine rotor for high temperature
EP1887096A1 (en) * 2006-08-09 2008-02-13 Rovalma, S.A. Hot working steel
US8523519B2 (en) 2009-09-24 2013-09-03 General Energy Company Steam turbine rotor and alloy therefor
CN103882326B (en) * 2013-11-13 2016-02-03 东南大学 A kind of high-strength abrasion-proof shovel loader teeth
CN104404392A (en) * 2014-11-05 2015-03-11 无锡阳工机械制造有限公司 Turbine rotor alloy
EP3296507B1 (en) 2015-08-28 2019-11-06 Mitsubishi Heavy Industries Compressor Corporation Method for producing turbine rotor and method for producing turbine
CN107779764A (en) * 2016-08-31 2018-03-09 鞍钢股份有限公司 Thick marine steel and production method thereof
CN107760991B (en) * 2017-10-30 2019-07-05 马钢(集团)控股有限公司 A kind of steel of brake disc of high-speed train containing cobalt
CN113710827B (en) * 2019-04-24 2022-09-20 日本制铁株式会社 Rotor for eddy current type speed reducer
CN113403530A (en) * 2021-05-22 2021-09-17 江苏铸鸿重工股份有限公司 High-strength corrosion-resistant alloy steel forged circle and preparation method thereof

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3954454A (en) * 1975-04-09 1976-05-04 Westinghouse Electric Corporation Temper embrittlement free low alloy steel
JPS56112443A (en) * 1980-02-12 1981-09-04 Nippon Chiyuutankou Kk Alloy for high pressure turbine rotor
JPS5782453A (en) * 1980-11-12 1982-05-22 Hitachi Ltd Heat resistant steel
JPS59205449A (en) * 1983-05-06 1984-11-21 Hitachi Ltd Heat resistant steel
JPS60184665A (en) * 1984-02-29 1985-09-20 Kobe Steel Ltd Low-alloy steel for pressure vessel
JPS63145750A (en) * 1986-12-09 1988-06-17 Toshiba Corp Low alloy steel for turborotor
US5108699A (en) * 1988-10-19 1992-04-28 Electric Power Research Institute Modified 1% CrMoV rotor steel
JPH07272271A (en) * 1994-03-30 1995-10-20 Kao Corp Transfer device
JPH083697A (en) * 1994-06-13 1996-01-09 Japan Steel Works Ltd:The Heat resistant steel
JP3461945B2 (en) * 1994-12-26 2003-10-27 株式会社日本製鋼所 Method of manufacturing high-low pressure integrated turbine rotor

Also Published As

Publication number Publication date
ATE252652T1 (en) 2003-11-15
DE60016286D1 (en) 2004-12-30
DE60006051T2 (en) 2004-07-22
EP1275745A1 (en) 2003-01-15
EP1275745B1 (en) 2004-11-24
DE60016286T2 (en) 2005-12-08
EP1091010A1 (en) 2001-04-11
DE60006051D1 (en) 2003-11-27
EP1091010B1 (en) 2003-10-22

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