JPS56102551A - Steel for low temperature use with superior toughness in weld heat-affected zone - Google Patents

Steel for low temperature use with superior toughness in weld heat-affected zone

Info

Publication number
JPS56102551A
JPS56102551A JP532180A JP532180A JPS56102551A JP S56102551 A JPS56102551 A JP S56102551A JP 532180 A JP532180 A JP 532180A JP 532180 A JP532180 A JP 532180A JP S56102551 A JPS56102551 A JP S56102551A
Authority
JP
Japan
Prior art keywords
steel
affected zone
weld heat
toughness
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
JP532180A
Other languages
Japanese (ja)
Other versions
JPS5945747B2 (en
Inventor
Ichiro Seta
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
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP55005321A priority Critical patent/JPS5945747B2/en
Publication of JPS56102551A publication Critical patent/JPS56102551A/en
Publication of JPS5945747B2 publication Critical patent/JPS5945747B2/en
Expired legal-status Critical Current

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  • Heat Treatment Of Steel (AREA)

Abstract

PURPOSE: To provide a steel for low temp. use with superior toughness in the weld heat-affected zone especially at -40W-60°C by adding a predetermined percentage each of C, Mn, Si, Al, P, S, N and Ti and/or B and restricting the value of Ceq to a specified value or below.
CONSTITUTION: This steel for low temp. use contains 0.005W0.13%, especially 0.03W0.10% C, 0.7W2.2% Mn, ≤0.3% Si, 0.01W0.1% Al, ≤0.025% P, ≤ 0.024% S, 0.005W0.0100% N and 0.006W0.025% Ti and/or 0.0006W0.0025% B, and it has ≤0.37 Ceq represented by the equation as an essential condition. The steel has improved toughness and ≤-55°C Charpy fracture transition temp. vTs in the weld heat-affected zone. The toughness of a weld heat-affected zone, which is most serious in case of an Al killed steel used especially at -40W-60°C, is improved.
COPYRIGHT: (C)1981,JPO&Japio
JP55005321A 1980-01-22 1980-01-22 Low-temperature steel with excellent weld heat-affected zone toughness Expired JPS5945747B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55005321A JPS5945747B2 (en) 1980-01-22 1980-01-22 Low-temperature steel with excellent weld heat-affected zone toughness

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55005321A JPS5945747B2 (en) 1980-01-22 1980-01-22 Low-temperature steel with excellent weld heat-affected zone toughness

Publications (2)

Publication Number Publication Date
JPS56102551A true JPS56102551A (en) 1981-08-17
JPS5945747B2 JPS5945747B2 (en) 1984-11-08

Family

ID=11607982

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55005321A Expired JPS5945747B2 (en) 1980-01-22 1980-01-22 Low-temperature steel with excellent weld heat-affected zone toughness

Country Status (1)

Country Link
JP (1) JPS5945747B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59136463A (en) * 1983-01-26 1984-08-06 Nippon Steel Corp Lamellar-tear resistant steel and preparation thereof
JPS60204863A (en) * 1984-03-28 1985-10-16 Kobe Steel Ltd Steel for high heat input welded structure
JPS61270354A (en) * 1985-05-27 1986-11-29 Kawasaki Steel Corp High-toughness welding steel

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6180518A (en) * 1984-09-26 1986-04-24 Pioneer Electronic Corp Cassette type head cleaner
JPS6180514A (en) * 1984-09-26 1986-04-24 Pioneer Electronic Corp Cassette type head cleaner

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5179624A (en) * 1974-12-31 1976-07-12 Nippon Steel Corp
JPS5231918A (en) * 1975-09-06 1977-03-10 Nippon Steel Corp Thick high tension steel plate, having superior low temperature tenaci ty

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5179624A (en) * 1974-12-31 1976-07-12 Nippon Steel Corp
JPS5231918A (en) * 1975-09-06 1977-03-10 Nippon Steel Corp Thick high tension steel plate, having superior low temperature tenaci ty

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59136463A (en) * 1983-01-26 1984-08-06 Nippon Steel Corp Lamellar-tear resistant steel and preparation thereof
JPS60204863A (en) * 1984-03-28 1985-10-16 Kobe Steel Ltd Steel for high heat input welded structure
JPS61270354A (en) * 1985-05-27 1986-11-29 Kawasaki Steel Corp High-toughness welding steel
JPH0454734B2 (en) * 1985-05-27 1992-09-01 Kawasaki Steel Co

Also Published As

Publication number Publication date
JPS5945747B2 (en) 1984-11-08

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