JPS5397922A - Manufacture of non-refined high tensile steel - Google Patents

Manufacture of non-refined high tensile steel

Info

Publication number
JPS5397922A
JPS5397922A JP1208177A JP1208177A JPS5397922A JP S5397922 A JPS5397922 A JP S5397922A JP 1208177 A JP1208177 A JP 1208177A JP 1208177 A JP1208177 A JP 1208177A JP S5397922 A JPS5397922 A JP S5397922A
Authority
JP
Japan
Prior art keywords
steel
high tensile
refined
manufacture
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
JP1208177A
Other languages
Japanese (ja)
Other versions
JPS5654053B2 (en
Inventor
Gennosuke Tenmiyo
Chiaki Ouchi
Tetsuya Sanbe
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 JP1208177A priority Critical patent/JPS5397922A/en
Publication of JPS5397922A publication Critical patent/JPS5397922A/en
Publication of JPS5654053B2 publication Critical patent/JPS5654053B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a non-refined high tensile steel having strength and toughness almost equal to those of refined steel and improved weldability by reducing carbon equivalent of non-refined steel; off-setting a decrease in strength with the addition of B; and rolling the steel of a controlled compsn. at a temp. above Ar3 transformation point followed by proper slow cooling and air cooling.
COPYRIGHT: (C)1978,JPO&Japio
JP1208177A 1977-02-08 1977-02-08 Manufacture of non-refined high tensile steel Granted JPS5397922A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1208177A JPS5397922A (en) 1977-02-08 1977-02-08 Manufacture of non-refined high tensile steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1208177A JPS5397922A (en) 1977-02-08 1977-02-08 Manufacture of non-refined high tensile steel

Publications (2)

Publication Number Publication Date
JPS5397922A true JPS5397922A (en) 1978-08-26
JPS5654053B2 JPS5654053B2 (en) 1981-12-23

Family

ID=11795624

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1208177A Granted JPS5397922A (en) 1977-02-08 1977-02-08 Manufacture of non-refined high tensile steel

Country Status (1)

Country Link
JP (1) JPS5397922A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56150157A (en) * 1980-04-23 1981-11-20 Kawasaki Steel Corp Steel for low-temperature with excellent toughness at welded part
JPS57134514A (en) * 1981-02-12 1982-08-19 Kawasaki Steel Corp Production of high-tensile steel of superior low- temperature toughness and weldability
JPS5852423A (en) * 1981-09-21 1983-03-28 Kawasaki Steel Corp Manufacture of unnormalized high tensile boron steel with superior toughness at low temperature and superior weldability
JPS5861224A (en) * 1981-10-07 1983-04-12 Kobe Steel Ltd Production of strong and tough non-refined steel plate
JPS5896818A (en) * 1981-12-07 1983-06-09 Sumitomo Metal Ind Ltd Production of hot-rolled steel material having high strength and excellent low temperature toughness
JPS58189321A (en) * 1982-04-30 1983-11-05 Nippon Kokan Kk <Nkk> Manufacture of high tension and high toughness steel material
US4474627A (en) * 1982-04-22 1984-10-02 Ugine Aciers Method of manufacturing steel bars and tubes with good mechanical characteristics
JPS6167717A (en) * 1984-09-10 1986-04-07 Kobe Steel Ltd Manufacture of high tension steel plate having superior strength and toughness in its weld heat-affected zone
JPS61295320A (en) * 1985-06-24 1986-12-26 Nippon Steel Corp Production of high-strength steel having 58-85kgf/mm2 tensile strength
US5019180A (en) * 1988-09-16 1991-05-28 Mannesmann Aktiengesellschaft Method of manufacturing of high-strength seamless steel tubes

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1253739A (en) * 1968-01-31 1971-11-17 Mitsubishi Heavy Ind Ltd Heat treatment of high tensile steel
JPS5126615A (en) * 1974-08-30 1976-03-05 Sumitomo Metal Ind HICHOSHITSUKOCHORYOKUKOHAN NO SEIZOHO
GB1436846A (en) * 1973-03-16 1976-05-26 Int Nickel Ltd Steels
JPS5168423A (en) * 1974-12-11 1976-06-14 Nippon Steel Corp KOJINSEIKOCHORYOKUKOHANNO SEIZOHOHO
GB1491729A (en) * 1973-12-28 1977-11-16 Sumitomo Metal Ind Steel pipelines which are resistant to hydrogen-induced cracking

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1253739A (en) * 1968-01-31 1971-11-17 Mitsubishi Heavy Ind Ltd Heat treatment of high tensile steel
GB1436846A (en) * 1973-03-16 1976-05-26 Int Nickel Ltd Steels
GB1491729A (en) * 1973-12-28 1977-11-16 Sumitomo Metal Ind Steel pipelines which are resistant to hydrogen-induced cracking
JPS5126615A (en) * 1974-08-30 1976-03-05 Sumitomo Metal Ind HICHOSHITSUKOCHORYOKUKOHAN NO SEIZOHO
JPS5168423A (en) * 1974-12-11 1976-06-14 Nippon Steel Corp KOJINSEIKOCHORYOKUKOHANNO SEIZOHOHO

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5926657B2 (en) * 1980-04-23 1984-06-29 川崎製鉄株式会社 Low-temperature steel with excellent weld toughness
JPS56150157A (en) * 1980-04-23 1981-11-20 Kawasaki Steel Corp Steel for low-temperature with excellent toughness at welded part
JPS57134514A (en) * 1981-02-12 1982-08-19 Kawasaki Steel Corp Production of high-tensile steel of superior low- temperature toughness and weldability
JPS6155572B2 (en) * 1981-02-12 1986-11-28 Kawasaki Steel Co
JPS5852423A (en) * 1981-09-21 1983-03-28 Kawasaki Steel Corp Manufacture of unnormalized high tensile boron steel with superior toughness at low temperature and superior weldability
JPS605647B2 (en) * 1981-09-21 1985-02-13 川崎製鉄株式会社 Method for manufacturing boron-containing non-thermal high tensile strength steel with excellent low-temperature toughness and weldability
JPS5861224A (en) * 1981-10-07 1983-04-12 Kobe Steel Ltd Production of strong and tough non-refined steel plate
JPS5896818A (en) * 1981-12-07 1983-06-09 Sumitomo Metal Ind Ltd Production of hot-rolled steel material having high strength and excellent low temperature toughness
JPS6160892B2 (en) * 1981-12-07 1986-12-23 Sumitomo Metal Ind
US4474627A (en) * 1982-04-22 1984-10-02 Ugine Aciers Method of manufacturing steel bars and tubes with good mechanical characteristics
JPS58189321A (en) * 1982-04-30 1983-11-05 Nippon Kokan Kk <Nkk> Manufacture of high tension and high toughness steel material
JPS6167717A (en) * 1984-09-10 1986-04-07 Kobe Steel Ltd Manufacture of high tension steel plate having superior strength and toughness in its weld heat-affected zone
JPS61295320A (en) * 1985-06-24 1986-12-26 Nippon Steel Corp Production of high-strength steel having 58-85kgf/mm2 tensile strength
JPH0615691B2 (en) * 1985-06-24 1994-03-02 新日本製鐵株式会社 Method for producing high strength steel having tensile strength of 58 to 85 ▲ kg ▼ f / ▲ mm2
US5019180A (en) * 1988-09-16 1991-05-28 Mannesmann Aktiengesellschaft Method of manufacturing of high-strength seamless steel tubes

Also Published As

Publication number Publication date
JPS5654053B2 (en) 1981-12-23

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