JPS5687623A - Production of low temperature steel - Google Patents

Production of low temperature steel

Info

Publication number
JPS5687623A
JPS5687623A JP16608579A JP16608579A JPS5687623A JP S5687623 A JPS5687623 A JP S5687623A JP 16608579 A JP16608579 A JP 16608579A JP 16608579 A JP16608579 A JP 16608579A JP S5687623 A JPS5687623 A JP S5687623A
Authority
JP
Japan
Prior art keywords
temp
cooling
rolling
production
low
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
JP16608579A
Other languages
Japanese (ja)
Other versions
JPS583010B2 (en
Inventor
Eiichi Oka
Akio Ono
Jun Kawahara
Takeo Harada
Seinosuke Yano
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
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP54166085A priority Critical patent/JPS583010B2/en
Publication of JPS5687623A publication Critical patent/JPS5687623A/en
Publication of JPS583010B2 publication Critical patent/JPS583010B2/en
Expired legal-status Critical Current

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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

PURPOSE:To obtain high impact resistance at low temp. by controlling rolling finish temp. to specific temp., cooling the steel down to 300 deg.C at specific cooling rate after finishing of the rolling thereafter cooling the same down to ordinary temp. arbitrarily and tempering the same at specific temp. CONSTITUTION:In production of low temp. steel contg. 6-10% Ni, the rolling finish temp. is controlled to 750-1,000 deg.C, and immediately upon finishing of the rolling, it is cooled down to 300 deg.C at >=0.3 deg.C/sec mean cooling rates. Thence, it is cooled down to ordinary temp. at arbitrary cooling rates and is tempered at 550- 620 deg.C whereby the low temperature steel having high impact resistance at low temperatures of -100-200 deg.C is obtained.
JP54166085A 1979-12-20 1979-12-20 Manufacturing method for low temperature steel Expired JPS583010B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54166085A JPS583010B2 (en) 1979-12-20 1979-12-20 Manufacturing method for low temperature steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54166085A JPS583010B2 (en) 1979-12-20 1979-12-20 Manufacturing method for low temperature steel

Publications (2)

Publication Number Publication Date
JPS5687623A true JPS5687623A (en) 1981-07-16
JPS583010B2 JPS583010B2 (en) 1983-01-19

Family

ID=15824698

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54166085A Expired JPS583010B2 (en) 1979-12-20 1979-12-20 Manufacturing method for low temperature steel

Country Status (1)

Country Link
JP (1) JPS583010B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59110726A (en) * 1982-12-17 1984-06-26 Nippon Kokan Kk <Nkk> Preparation of ni-containing low temperature steel excellent in crack leading end opening displacement amount

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61123121A (en) * 1984-11-20 1986-06-11 Alps Electric Co Ltd Chip inductor and manufacture of same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5113308A (en) * 1974-07-24 1976-02-02 Nippon Steel Corp TEIONYOKYOJINKOOYOBISONO NETSUSHORIHOHO
JPS5341614A (en) * 1976-09-29 1978-04-15 Toshihiko Kojima Complex vortex producing apparatus for diesel engine
JPS5386620A (en) * 1977-01-12 1978-07-31 Nippon Kokan Kk <Nkk> Manufacture of ni-containing steel for low temperature use

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5113308A (en) * 1974-07-24 1976-02-02 Nippon Steel Corp TEIONYOKYOJINKOOYOBISONO NETSUSHORIHOHO
JPS5341614A (en) * 1976-09-29 1978-04-15 Toshihiko Kojima Complex vortex producing apparatus for diesel engine
JPS5386620A (en) * 1977-01-12 1978-07-31 Nippon Kokan Kk <Nkk> Manufacture of ni-containing steel for low temperature use

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59110726A (en) * 1982-12-17 1984-06-26 Nippon Kokan Kk <Nkk> Preparation of ni-containing low temperature steel excellent in crack leading end opening displacement amount
JPS621453B2 (en) * 1982-12-17 1987-01-13 Nippon Kokan Kk

Also Published As

Publication number Publication date
JPS583010B2 (en) 1983-01-19

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