JPS5690921A - Production of low temperature steel having superior toughness and hydrogen induced crack resistance characteristic - Google Patents

Production of low temperature steel having superior toughness and hydrogen induced crack resistance characteristic

Info

Publication number
JPS5690921A
JPS5690921A JP16731079A JP16731079A JPS5690921A JP S5690921 A JPS5690921 A JP S5690921A JP 16731079 A JP16731079 A JP 16731079A JP 16731079 A JP16731079 A JP 16731079A JP S5690921 A JPS5690921 A JP S5690921A
Authority
JP
Japan
Prior art keywords
contg
resistance characteristic
hydrogen induced
production
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.)
Granted
Application number
JP16731079A
Other languages
Japanese (ja)
Other versions
JPS6334205B2 (en
Inventor
Chiaki Shiga
Taneo Hatomura
Akio Kamata
Nobuo Ohashi
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 JP16731079A priority Critical patent/JPS5690921A/en
Publication of JPS5690921A publication Critical patent/JPS5690921A/en
Publication of JPS6334205B2 publication Critical patent/JPS6334205B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a low temp. steel of superior toughness and hydrogen induced cracking resistance characteristic by rolling a steel slab consisting of specific component composition under prescribed temp. conditions then subjecting the same to water cooling and tempering.
CONSTITUTION: A steel slab consisting essentially of 0.02W0.2% C based on weight percent (hereafter the same), 0.05W0.50 Si, 0.5W2.0Mn, 0.005W0.1 Al, and 0.01W0.08 Nb, and if necessary, contg. 0.003W0.04 Ti, contg. one or two or more kinds among ≤0.006 S, ≤1.0 Ni, ≤0.3 Mo, ≤0.5 Cu, ≤0.1 V, ≤0.4 Cr, ≤0.003 B, or contg. at least one of 0.001W0.1 Ca or REM is hot-rolled at ≥900°C. Thence, it is cumulatively screwed down at a 40% reduction of area in an unrecrystallization austenite region or austenite-ferrite two regions below 900°C. After it is once cooled down below Ar transformation point, it is reheated to the temp. region of Ac1W Ac3, thence it is tempered below Ac1 point after water cooling.
COPYRIGHT: (C)1981,JPO&Japio
JP16731079A 1979-12-22 1979-12-22 Production of low temperature steel having superior toughness and hydrogen induced crack resistance characteristic Granted JPS5690921A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16731079A JPS5690921A (en) 1979-12-22 1979-12-22 Production of low temperature steel having superior toughness and hydrogen induced crack resistance characteristic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16731079A JPS5690921A (en) 1979-12-22 1979-12-22 Production of low temperature steel having superior toughness and hydrogen induced crack resistance characteristic

Publications (2)

Publication Number Publication Date
JPS5690921A true JPS5690921A (en) 1981-07-23
JPS6334205B2 JPS6334205B2 (en) 1988-07-08

Family

ID=15847368

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16731079A Granted JPS5690921A (en) 1979-12-22 1979-12-22 Production of low temperature steel having superior toughness and hydrogen induced crack resistance characteristic

Country Status (1)

Country Link
JP (1) JPS5690921A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57117803U (en) * 1981-01-14 1982-07-21
JPS6217127A (en) * 1985-07-17 1987-01-26 Nippon Steel Corp Manufacture of deformed pipe having superior toughness at low temperature
KR100815717B1 (en) 2006-11-02 2008-03-20 주식회사 포스코 High strength linepipe steel plate for large diameter pipe with high low-temperature ductility and hic resistance at the h2s containing environment and manufacturing method thereof
CN100463978C (en) * 2007-05-25 2009-02-25 山西太钢不锈钢股份有限公司 Method for increasing toughness of low temperature steel plate

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5114815A (en) * 1974-07-27 1976-02-05 Nippon Steel Corp Koenseio jusuru kojinseichoshitsukono seizoho
JPS5457418A (en) * 1977-10-18 1979-05-09 Nippon Kokan Kk <Nkk> Manufacture of high toughness, refined steel
JPS5597425A (en) * 1979-01-19 1980-07-24 Nippon Kokan Kk <Nkk> Preparation of high-tensile steel with low yield ratio, low carbon and low alloy

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5114815A (en) * 1974-07-27 1976-02-05 Nippon Steel Corp Koenseio jusuru kojinseichoshitsukono seizoho
JPS5457418A (en) * 1977-10-18 1979-05-09 Nippon Kokan Kk <Nkk> Manufacture of high toughness, refined steel
JPS5597425A (en) * 1979-01-19 1980-07-24 Nippon Kokan Kk <Nkk> Preparation of high-tensile steel with low yield ratio, low carbon and low alloy

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57117803U (en) * 1981-01-14 1982-07-21
JPS6217127A (en) * 1985-07-17 1987-01-26 Nippon Steel Corp Manufacture of deformed pipe having superior toughness at low temperature
JPH0213006B2 (en) * 1985-07-17 1990-04-03 Nippon Steel Corp
KR100815717B1 (en) 2006-11-02 2008-03-20 주식회사 포스코 High strength linepipe steel plate for large diameter pipe with high low-temperature ductility and hic resistance at the h2s containing environment and manufacturing method thereof
CN100463978C (en) * 2007-05-25 2009-02-25 山西太钢不锈钢股份有限公司 Method for increasing toughness of low temperature steel plate

Also Published As

Publication number Publication date
JPS6334205B2 (en) 1988-07-08

Similar Documents

Publication Publication Date Title
SE8307123D0 (en) METHOD OF MANUFACTURING HIGH TENSILE STRENGTH STEEL PLATES
CA2207382A1 (en) Ultra-high strength steels and method thereof
JPS5597425A (en) Preparation of high-tensile steel with low yield ratio, low carbon and low alloy
JPS57134514A (en) Production of high-tensile steel of superior low- temperature toughness and weldability
JPS55100924A (en) Production of high toughness bainite high tension steel plate having excellent weldability
JPS5633425A (en) Manufacture of tempered high tensile steel sheet having excellent low temperature toughness
JPS5690921A (en) Production of low temperature steel having superior toughness and hydrogen induced crack resistance characteristic
JPS5524932A (en) Manufacture of bainite tough hardening steel
JPS5633426A (en) Manufacture of tempered high tensile steel sheet having excellent low temperature toughness
JPS5565324A (en) Manufacture of low alloy steel excellent in cold workability
JPS5763628A (en) Production of forge hardened parts
JPS5735623A (en) Manufacture of high strength alloy steel for high temperature use
JPS5741323A (en) Manufacture of refined thick steel products with superior characteristic stopping brittle rupture propagation
KR100951248B1 (en) High tensile-strength steels with 1100MPa grade for deep drawing and method for manufacturing low-temperature and high-pressure vessel using the same
JPS5457418A (en) Manufacture of high toughness, refined steel
JPS5723048A (en) Secondary hardening type hot tool steel
JPS57104623A (en) Manufacture of high strength and high toughness steel pipe of large diameter
JPS5579856A (en) High toughness, wear resistant steel
JPS5524935A (en) Manufacture of high tensile hot rolled steel plate having excellent low-temperature toughness
JPS56119723A (en) Manufacture of nonrefined high tensile steel with superior low temperature toughness
JPS54127821A (en) Line pipe steel resistant to hydrogen induced cracking and production thereof
JPS57104653A (en) Steel for line pipe with superior hydrogen sulfide cracking resistance and its manufacture
JPS5625923A (en) Production of non-refining high tensile steel with superior low temperature toughness
JPS57188615A (en) Toughness increasing method for steel
JPS644423A (en) Manufacture of bar steel with fine-grain structure