JPS56156716A - Manufacture of ni-containing steel for low temperature excellent in crack tip opening displacement - Google Patents

Manufacture of ni-containing steel for low temperature excellent in crack tip opening displacement

Info

Publication number
JPS56156716A
JPS56156716A JP5946880A JP5946880A JPS56156716A JP S56156716 A JPS56156716 A JP S56156716A JP 5946880 A JP5946880 A JP 5946880A JP 5946880 A JP5946880 A JP 5946880A JP S56156716 A JPS56156716 A JP S56156716A
Authority
JP
Japan
Prior art keywords
manufacture
tip opening
crack tip
opening displacement
low temperature
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.)
Pending
Application number
JP5946880A
Other languages
Japanese (ja)
Inventor
Makoto Yamada
Toshio Takano
Junichi Tanaka
Norihiro Iwasaki
Yoshitaka Yamazaki
Takashi Nagamine
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP5946880A priority Critical patent/JPS56156716A/en
Publication of JPS56156716A publication Critical patent/JPS56156716A/en
Pending 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

Abstract

PURPOSE:To manufacture a steel plate that has a high crack tip opening displacement stably in liquid nitrogen temperature by hot-rolling Ni-steel containing specified quantity of C, Si, Mn, Ni etc. in a prescribed condition. CONSTITUTION:Ni-steel that contains 0.01-0.15% C, <=0.5% Si, 7.5-10% Ni, 0.02-0.1% sol Al, and either 0.01-0.5% Mo or 0.001-0.05% Nb or both is rolled at >=20% cumulative rolling reduction after heating to 1,000-1,200 deg.C. After completion of rolling, the steel material is heated to above Ac3 point and cooled. Then, it is tempered at temperature below Ac3 point.
JP5946880A 1980-05-07 1980-05-07 Manufacture of ni-containing steel for low temperature excellent in crack tip opening displacement Pending JPS56156716A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5946880A JPS56156716A (en) 1980-05-07 1980-05-07 Manufacture of ni-containing steel for low temperature excellent in crack tip opening displacement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5946880A JPS56156716A (en) 1980-05-07 1980-05-07 Manufacture of ni-containing steel for low temperature excellent in crack tip opening displacement

Publications (1)

Publication Number Publication Date
JPS56156716A true JPS56156716A (en) 1981-12-03

Family

ID=13114164

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5946880A Pending JPS56156716A (en) 1980-05-07 1980-05-07 Manufacture of ni-containing steel for low temperature excellent in crack tip opening displacement

Country Status (1)

Country Link
JP (1) JPS56156716A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5266417A (en) * 1990-01-25 1993-11-30 Kawasaki Steel Corporation Low-temperature service nickel plate with excellent weld toughness

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5352227A (en) * 1976-10-25 1978-05-12 Nippon Steel Corp Production of high toughness high tensile steel
JPS5633426A (en) * 1979-08-24 1981-04-03 Sumitomo Metal Ind Ltd Manufacture of tempered high tensile steel sheet having excellent low temperature toughness

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5352227A (en) * 1976-10-25 1978-05-12 Nippon Steel Corp Production of high toughness high tensile steel
JPS5633426A (en) * 1979-08-24 1981-04-03 Sumitomo Metal Ind Ltd Manufacture of tempered high tensile steel sheet having excellent low temperature toughness

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5266417A (en) * 1990-01-25 1993-11-30 Kawasaki Steel Corporation Low-temperature service nickel plate with excellent weld toughness

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