JPS57134514A - Production of high-tensile steel of superior low- temperature toughness and weldability - Google Patents

Production of high-tensile steel of superior low- temperature toughness and weldability

Info

Publication number
JPS57134514A
JPS57134514A JP1816781A JP1816781A JPS57134514A JP S57134514 A JPS57134514 A JP S57134514A JP 1816781 A JP1816781 A JP 1816781A JP 1816781 A JP1816781 A JP 1816781A JP S57134514 A JPS57134514 A JP S57134514A
Authority
JP
Japan
Prior art keywords
temp
tensile steel
rolled
thereafter
weldability
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
JP1816781A
Other languages
Japanese (ja)
Other versions
JPS6155572B2 (en
Inventor
Kenichi Amano
Chiaki Shiga
Taneo Hatomura
Akio Kamata
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 Steel Corp
Original Assignee
Kawasaki 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP1816781A priority Critical patent/JPS57134514A/en
Publication of JPS57134514A publication Critical patent/JPS57134514A/en
Publication of JPS6155572B2 publication Critical patent/JPS6155572B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To obtain titled high-tensile steel permitting additional intensification by making the temp. for stopping of the accelerated cooling after heating-rolling under adequate conditions for steel of composition having adequate content of Nb lower than that in the prior art.
CONSTITUTION: A slab of 0.02W0.15 C, by %, 0.03W0.60 Si, 1.0W2.5 Mn, 0.005W 0.060 solAl, 0.01W0.10 Nb, ≥1 kinds of limited amts. of Ti, Ni, Cu, Mo, V, Cr, B, Ca, REM and ≤0.008 S and F out of the balance unavoidable impurities is heated to 1,180°C or below temp. at which Nb solutionizes at ≥0.01. Thereafter, it is rolled to ≥ 50% cumulative draft in an austenite recrystallization temp., in succession to which it is rolled to ≥50% cumulative draft at Ar3WAr3+150°C. Thereafter, it is cooled immediately down to 450W300°C at 2W20°C/sec. cooling rates, after which it is air-cooled. With the accelerated cooling temp. in excess of the upper limit, the two phase structure of ferrite and bainite is formed, and the effect of increasing strength is not large. Below the lower limit, the amt. of martensite increases and this decreases the effect of tempering.
COPYRIGHT: (C)1982,JPO&Japio
JP1816781A 1981-02-12 1981-02-12 Production of high-tensile steel of superior low- temperature toughness and weldability Granted JPS57134514A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1816781A JPS57134514A (en) 1981-02-12 1981-02-12 Production of high-tensile steel of superior low- temperature toughness and weldability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1816781A JPS57134514A (en) 1981-02-12 1981-02-12 Production of high-tensile steel of superior low- temperature toughness and weldability

Publications (2)

Publication Number Publication Date
JPS57134514A true JPS57134514A (en) 1982-08-19
JPS6155572B2 JPS6155572B2 (en) 1986-11-28

Family

ID=11964044

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1816781A Granted JPS57134514A (en) 1981-02-12 1981-02-12 Production of high-tensile steel of superior low- temperature toughness and weldability

Country Status (1)

Country Link
JP (1) JPS57134514A (en)

Cited By (18)

* 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
JPS6013021A (en) * 1983-06-30 1985-01-23 Nippon Steel Corp Production of steel material having high yield point
JPS61117214A (en) * 1984-11-12 1986-06-04 Kawasaki Steel Corp Manufacture of nontempered high tensile steel having superior weldability, low temperature toughness and high yield point
JPS63128117A (en) * 1986-11-17 1988-05-31 Kawasaki Steel Corp Production of unnormalized high tensile steel
JPS63223124A (en) * 1987-03-11 1988-09-16 Nippon Steel Corp Manufacture of high-strength thick steel plate excellent in toughness at low temperature
JPS63235431A (en) * 1987-03-24 1988-09-30 Nippon Steel Corp Manufacture of steel plate excellent in strength and toughness and reduced in acoustic anisotropy
JPH01159320A (en) * 1987-12-16 1989-06-22 Sumitomo Metal Ind Ltd Production of high-strength extra-thick steel
WO1996017964A1 (en) * 1994-12-06 1996-06-13 Exxon Research And Engineering Company Ultra-high strength steels and method thereof
WO1999005334A1 (en) * 1997-07-28 1999-02-04 Exxonmobil Upstream Research Company Ultra-high strength, weldable, essentially boron-free steels wit h superior toughness
WO1999005335A1 (en) * 1997-07-28 1999-02-04 Exxonmobil Upstream Research Company Ultra-high strength, weldable steels with excellent ultra-low temperature toughness
WO1999005328A1 (en) * 1997-07-28 1999-02-04 Exxonmobil Upstream Research Company Method for producing ultra-high strength, weldable steels with superior toughness
WO1999005336A1 (en) * 1997-07-28 1999-02-04 Exxonmobil Upstream Research Company Ultra-high strength, weldable, boron-containing steels with superior toughness
US6245290B1 (en) 1997-02-27 2001-06-12 Exxonmobil Upstream Research Company High-tensile-strength steel and method of manufacturing the same
KR100450613B1 (en) * 1999-12-28 2004-09-30 주식회사 포스코 A method for manufacturing wire rod for thick plate welding with superior impact toughness
KR100482188B1 (en) * 2000-11-28 2005-04-21 주식회사 포스코 Method for manufacturing high strength steel plate having superior toughness in weld heat-affected zone by recrystallization controlled rolling
WO2012021090A1 (en) * 2010-08-10 2012-02-16 Общество С Ограниченной Ответственностью "Исследовательско-Технологический Центр "Аусферр" Method for thermal processing of articles consisting of alloys on the basis of iron (variants)
EP2762594A4 (en) * 2011-09-26 2015-08-12 Baoshan Iron & Steel High-strength and high-toughness steel plate with yield strength being 700 mpa and manufacturing method thereof
US9683275B2 (en) 2011-09-26 2017-06-20 Baoshan Iron & Steel Co., Ltd. Steel plate with low yield-tensile ratio and high toughness and method of manufacturing the same

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5397922A (en) * 1977-02-08 1978-08-26 Nippon Kokan Kk <Nkk> Manufacture of non-refined high tensile steel
JPS5468719A (en) * 1977-11-10 1979-06-02 Kawasaki Steel Co Production of nonthermal refining high tensile steel plate with excellent low temperature flexibility
JPS5530047A (en) * 1978-08-22 1980-03-03 Hitachi Zosen Corp Wave dissipation revetment
JPS5621810A (en) * 1979-07-31 1981-02-28 Matsushita Electric Ind Co Ltd Manufacture of anisotropic oxide sintered body
JPS56119723A (en) * 1980-02-25 1981-09-19 Kawasaki Steel Corp Manufacture of nonrefined high tensile steel with superior low temperature toughness
JPS5776126A (en) * 1980-10-30 1982-05-13 Nippon Steel Corp Manufacture of tough steel

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5397922A (en) * 1977-02-08 1978-08-26 Nippon Kokan Kk <Nkk> Manufacture of non-refined high tensile steel
JPS5468719A (en) * 1977-11-10 1979-06-02 Kawasaki Steel Co Production of nonthermal refining high tensile steel plate with excellent low temperature flexibility
JPS5530047A (en) * 1978-08-22 1980-03-03 Hitachi Zosen Corp Wave dissipation revetment
JPS5621810A (en) * 1979-07-31 1981-02-28 Matsushita Electric Ind Co Ltd Manufacture of anisotropic oxide sintered body
JPS56119723A (en) * 1980-02-25 1981-09-19 Kawasaki Steel Corp Manufacture of nonrefined high tensile steel with superior low temperature toughness
JPS5776126A (en) * 1980-10-30 1982-05-13 Nippon Steel Corp Manufacture of tough steel

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS621453B2 (en) * 1982-12-17 1987-01-13 Nippon Kokan Kk
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
JPH0543767B2 (en) * 1983-06-30 1993-07-02 Nippon Steel Corp
JPS6013021A (en) * 1983-06-30 1985-01-23 Nippon Steel Corp Production of steel material having high yield point
JPS61117214A (en) * 1984-11-12 1986-06-04 Kawasaki Steel Corp Manufacture of nontempered high tensile steel having superior weldability, low temperature toughness and high yield point
JPS63128117A (en) * 1986-11-17 1988-05-31 Kawasaki Steel Corp Production of unnormalized high tensile steel
JPS63223124A (en) * 1987-03-11 1988-09-16 Nippon Steel Corp Manufacture of high-strength thick steel plate excellent in toughness at low temperature
JPS63235431A (en) * 1987-03-24 1988-09-30 Nippon Steel Corp Manufacture of steel plate excellent in strength and toughness and reduced in acoustic anisotropy
JPH0583608B2 (en) * 1987-03-24 1993-11-26 Nippon Steel Corp
JPH01159320A (en) * 1987-12-16 1989-06-22 Sumitomo Metal Ind Ltd Production of high-strength extra-thick steel
JPH066743B2 (en) * 1987-12-16 1994-01-26 住友金属工業株式会社 Method for manufacturing high strength ultra thick steel
WO1996017964A1 (en) * 1994-12-06 1996-06-13 Exxon Research And Engineering Company Ultra-high strength steels and method thereof
US5545269A (en) * 1994-12-06 1996-08-13 Exxon Research And Engineering Company Method for producing ultra high strength, secondary hardening steels with superior toughness and weldability
CN1075117C (en) * 1994-12-06 2001-11-21 埃克森研究工程公司 Ultra-high strength secondary hardening steels with excellent toughness and weldability and method thereof
US6245290B1 (en) 1997-02-27 2001-06-12 Exxonmobil Upstream Research Company High-tensile-strength steel and method of manufacturing the same
US6248191B1 (en) 1997-07-28 2001-06-19 Exxonmobil Upstream Research Company Method for producing ultra-high strength, weldable steels with superior toughness
CN1088474C (en) * 1997-07-28 2002-07-31 埃克森美孚上游研究公司 Method for producing ultra-high strength, weldable steels with superior toughness
US6224689B1 (en) 1997-07-28 2001-05-01 Exxonmobil Upstream Research Company Ultra-high strength, weldable, essentially boron-free steels with superior toughness
US6228183B1 (en) 1997-07-28 2001-05-08 Exxonmobil Upstream Research Company Ultra-high strength, weldable, boron-containing steels with superior toughness
WO1999005328A1 (en) * 1997-07-28 1999-02-04 Exxonmobil Upstream Research Company Method for producing ultra-high strength, weldable steels with superior toughness
WO1999005335A1 (en) * 1997-07-28 1999-02-04 Exxonmobil Upstream Research Company Ultra-high strength, weldable steels with excellent ultra-low temperature toughness
US6264760B1 (en) 1997-07-28 2001-07-24 Exxonmobil Upstream Research Company Ultra-high strength, weldable steels with excellent ultra-low temperature toughness
AU736078B2 (en) * 1997-07-28 2001-07-26 Exxonmobil Upstream Research Company Ultra-high strength, weldable, boron-containing steels with superior toughness
AU736035B2 (en) * 1997-07-28 2001-07-26 Exxonmobil Upstream Research Company Ultra-high strength, weldable steels with excellent ultra-low temperature toughness
AU736037B2 (en) * 1997-07-28 2001-07-26 Exxonmobil Upstream Research Company Method for producing ultra-high strength, weldable steels with superior toughness
AU736152B2 (en) * 1997-07-28 2001-07-26 Exxonmobil Upstream Research Company Ultra-high strength, weldable, essentially boron-free steels with superior toughness
WO1999005334A1 (en) * 1997-07-28 1999-02-04 Exxonmobil Upstream Research Company Ultra-high strength, weldable, essentially boron-free steels wit h superior toughness
CN1085258C (en) * 1997-07-28 2002-05-22 埃克森美孚上游研究公司 Ultra-high strength, weldable steels with excellent ultra-low temperature toughness
WO1999005336A1 (en) * 1997-07-28 1999-02-04 Exxonmobil Upstream Research Company Ultra-high strength, weldable, boron-containing steels with superior toughness
KR100375085B1 (en) * 1997-07-28 2003-03-07 닛폰 스틸 가부시키가이샤 Ultra-high strength, weldable, essentially boron-free steels with superior toughness
KR100375084B1 (en) * 1997-07-28 2003-03-07 닛폰 스틸 가부시키가이샤 Ultra-high strength, weldable, boron-containing steels with superior toughness
KR100375086B1 (en) * 1997-07-28 2003-03-28 닛폰 스틸 가부시키가이샤 Ultra-high strength, weldable steel plate with excellent ultra-low temperature toughness and the method for preparing the same
KR100386767B1 (en) * 1997-07-28 2003-06-09 닛폰 스틸 가부시키가이샤 Method for producing ultra-high strength, weldable steels with superior toughness
KR100450613B1 (en) * 1999-12-28 2004-09-30 주식회사 포스코 A method for manufacturing wire rod for thick plate welding with superior impact toughness
KR100482188B1 (en) * 2000-11-28 2005-04-21 주식회사 포스코 Method for manufacturing high strength steel plate having superior toughness in weld heat-affected zone by recrystallization controlled rolling
WO2012021090A1 (en) * 2010-08-10 2012-02-16 Общество С Ограниченной Ответственностью "Исследовательско-Технологический Центр "Аусферр" Method for thermal processing of articles consisting of alloys on the basis of iron (variants)
EA022014B1 (en) * 2010-08-10 2015-10-30 Общество С Ограниченной Ответственностью "Исследовательско-Технологический Центр "Аусферр" Method for thermal processing of articles consisting of alloys on the basis of iron (variants)
EP2762594A4 (en) * 2011-09-26 2015-08-12 Baoshan Iron & Steel High-strength and high-toughness steel plate with yield strength being 700 mpa and manufacturing method thereof
US9683275B2 (en) 2011-09-26 2017-06-20 Baoshan Iron & Steel Co., Ltd. Steel plate with low yield-tensile ratio and high toughness and method of manufacturing the same
US9771639B2 (en) 2011-09-26 2017-09-26 Baoshan Iron & Steel Co., Ltd. High-strength and high-toughness steel plate with yield strength of 700 MPa and method of manufacturing the same

Also Published As

Publication number Publication date
JPS6155572B2 (en) 1986-11-28

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