JPS5323817A - Production of low yield ratio, high toughness, high tensile steel plate - Google Patents

Production of low yield ratio, high toughness, high tensile steel plate

Info

Publication number
JPS5323817A
JPS5323817A JP9892376A JP9892376A JPS5323817A JP S5323817 A JPS5323817 A JP S5323817A JP 9892376 A JP9892376 A JP 9892376A JP 9892376 A JP9892376 A JP 9892376A JP S5323817 A JPS5323817 A JP S5323817A
Authority
JP
Japan
Prior art keywords
steel plate
yield ratio
low yield
production
tensile steel
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
JP9892376A
Other languages
Japanese (ja)
Other versions
JPS5952207B2 (en
Inventor
Hajime Nakasugi
Hiroaki Masui
Seiji Isoda
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 JP9892376A priority Critical patent/JPS5952207B2/en
Publication of JPS5323817A publication Critical patent/JPS5323817A/en
Publication of JPS5952207B2 publication Critical patent/JPS5952207B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To convert the structure of a hot rolled steel plate into a fine mixed structure of matensite and ferrite by heating, quenching, heating to a temp. between Ac1 and Ac3 transformation points, and air cooling the steel plate so as to provide a thick steel plate with high strength, low yield ratio, and excellent toughness at low temp. suitable for low temp. use.
COPYRIGHT: (C)1978,JPO&Japio
JP9892376A 1976-08-19 1976-08-19 Manufacturing method of low yield ratio, high toughness, high tensile strength steel plate Expired JPS5952207B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9892376A JPS5952207B2 (en) 1976-08-19 1976-08-19 Manufacturing method of low yield ratio, high toughness, high tensile strength steel plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9892376A JPS5952207B2 (en) 1976-08-19 1976-08-19 Manufacturing method of low yield ratio, high toughness, high tensile strength steel plate

Publications (2)

Publication Number Publication Date
JPS5323817A true JPS5323817A (en) 1978-03-04
JPS5952207B2 JPS5952207B2 (en) 1984-12-18

Family

ID=14232635

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9892376A Expired JPS5952207B2 (en) 1976-08-19 1976-08-19 Manufacturing method of low yield ratio, high toughness, high tensile strength steel plate

Country Status (1)

Country Link
JP (1) JPS5952207B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5474221A (en) * 1977-11-25 1979-06-14 Nippon Kokan Kk <Nkk> Manufacture of quality-controlled high-tensile steel of excellent uniform elongation characteristics
CN104164622A (en) * 2014-08-13 2014-11-26 无棣向上机械设计服务有限公司 Low-alloy steel metal material and manufacturing method thereof
JP2017160512A (en) * 2016-03-11 2017-09-14 新日鐵住金株式会社 Nickel-containing steel sheet for low temperature excellent in tensile strength and toughness and manufacturing method therefor
CN110073018A (en) * 2016-12-12 2019-07-30 杰富意钢铁株式会社 Low yielding ratio rectangular steel tube hot rolled steel plate and its manufacturing method and low yielding ratio rectangular steel tube and its manufacturing method
JP2020117796A (en) * 2019-01-28 2020-08-06 Ｊｆｅスチール株式会社 Super low yield ratio high tensile strength thick steel sheet and manufacturing method therefor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5474221A (en) * 1977-11-25 1979-06-14 Nippon Kokan Kk <Nkk> Manufacture of quality-controlled high-tensile steel of excellent uniform elongation characteristics
JPS5852532B2 (en) * 1977-11-25 1983-11-24 日本鋼管株式会社 Manufacturing method for tempered high-strength steel with excellent uniform elongation properties
CN104164622A (en) * 2014-08-13 2014-11-26 无棣向上机械设计服务有限公司 Low-alloy steel metal material and manufacturing method thereof
CN104164622B (en) * 2014-08-13 2016-08-24 无棣向上机械设计服务有限公司 A kind of low-alloy steel metal material and preparation method thereof
JP2017160512A (en) * 2016-03-11 2017-09-14 新日鐵住金株式会社 Nickel-containing steel sheet for low temperature excellent in tensile strength and toughness and manufacturing method therefor
CN110073018A (en) * 2016-12-12 2019-07-30 杰富意钢铁株式会社 Low yielding ratio rectangular steel tube hot rolled steel plate and its manufacturing method and low yielding ratio rectangular steel tube and its manufacturing method
JP2020117796A (en) * 2019-01-28 2020-08-06 Ｊｆｅスチール株式会社 Super low yield ratio high tensile strength thick steel sheet and manufacturing method therefor

Also Published As

Publication number Publication date
JPS5952207B2 (en) 1984-12-18

Similar Documents

Publication Publication Date Title
JPS52152814A (en) Thermo-mechanical treatment of seamless steel pipe
JPS5323817A (en) Production of low yield ratio, high toughness, high tensile steel plate
JPS5397922A (en) Manufacture of non-refined high tensile steel
JPS5351121A (en) Production of medium or low carbn high tensile wire rod
JPS5328515A (en) Production of ultrahigh strength cold rolled steel sheet by continuous annealing
JPS52147511A (en) Anticorrosive high strength neobium alloy and its production
JPS53119219A (en) Manufacture of weldable high tensile steel
JPS5339918A (en) Production of cast iron and steel by combination of shaft furnace, bupola and converter
JPS5366818A (en) Manufacture of high toughness high strength steel
JPS52109421A (en) Heat resisting steel with excellent hot and cold workability
JPS52138428A (en) Production of rail having excellent wear resistance and damage resistance as rolled
JPS5284117A (en) Preparation of cold rolled high tension steel plate of good cold forma bility
JPS5244719A (en) Method of producing thick steel plates having excellent low temperatur e touchness, low yield ratio and high tensile strength after rolling
JPS5388620A (en) Preparation of hot rolled steel belt having high strength
JPS5272318A (en) Preparation of nut of high tensile strength
JPS52123921A (en) Production of steel plate with high toughness
JPS5337123A (en) Production of high tensile strength steel excellent in low temperature toughness
JPS53106325A (en) Production of as-rolled high tensile stlength steel of excellent low temperature toughness
JPS5228425A (en) Method of producing high strength non-refined steel plate with excelle nt toughness
JPS51112418A (en) Process for producing weldable high tensile steel plate with excellent low temperature toughness
JPS5329219A (en) Production of high strength steel
JPS5332814A (en) Production of steel plate with excellent moldability used for steel pipe
JPS5354112A (en) Production of high purity pig iron for nodular graphite cast iron
JPS5285917A (en) Production of steel plate of high yield point and excellent low temper ature toughness
JPS5371033A (en) Preparation of 4-alkoxycarbonyl-3,5-dimethylphthalic acid anhydride