JPS55158255A - Line pipe steel with superior wet carbon dioxide corrosion resistance and weldability - Google Patents

Line pipe steel with superior wet carbon dioxide corrosion resistance and weldability

Info

Publication number
JPS55158255A
JPS55158255A JP6538979A JP6538979A JPS55158255A JP S55158255 A JPS55158255 A JP S55158255A JP 6538979 A JP6538979 A JP 6538979A JP 6538979 A JP6538979 A JP 6538979A JP S55158255 A JPS55158255 A JP S55158255A
Authority
JP
Japan
Prior art keywords
corrosion resistance
steel
weldability
line pipe
carbon dioxide
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
JP6538979A
Other languages
Japanese (ja)
Other versions
JPS5945750B2 (en
Inventor
Kazuo Ikeda
Masaaki Tanaka
Seiichi Watanabe
Yasuo Otani
Fukunaga Terasaki
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 JP6538979A priority Critical patent/JPS5945750B2/en
Publication of JPS55158255A publication Critical patent/JPS55158255A/en
Publication of JPS5945750B2 publication Critical patent/JPS5945750B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To provide a line pipe steel having high corrosion resistance to wet CO2, superior weldability and a weld crack sensitivity index regulated to a low value and contg. C, Si, Mn, Cr, Nb, Al, B and N each in a predetermined percentage other than the balance Fe and impurities.
CONSTITUTION: This steel is composed of C≤0.10%, Si 0.10W1.00%, Mn 0.10W 1.20%, Cr 1.0W3.0%, Nb 0.01W0.08%, Al 0.01W0.10%, B 0.0002W0.0050%, N 0.0010W0.015%, and the balance Fe and impurities. The ratio of B/N (content) is regulated to 0.1W0.6, and S and Cu among the impurities to S≤0.010% and Cu≤ 0.04%. In addition, the weld crack sensitivity index PCM of this steel represented by the equation is regulated to 0.23% or less. This steel has high sulfide crack resistance as well as the above-mentioned characteristics.
COPYRIGHT: (C)1980,JPO&Japio
JP6538979A 1979-05-25 1979-05-25 Steel for line pipes with excellent wet carbon dioxide corrosion resistance and weldability Expired JPS5945750B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6538979A JPS5945750B2 (en) 1979-05-25 1979-05-25 Steel for line pipes with excellent wet carbon dioxide corrosion resistance and weldability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6538979A JPS5945750B2 (en) 1979-05-25 1979-05-25 Steel for line pipes with excellent wet carbon dioxide corrosion resistance and weldability

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP12952384A Division JPS6024352A (en) 1984-06-22 1984-06-22 Steel for line pipe with superior corrosion resistance to wet gaseous carbon dioxide and superior weldability

Publications (2)

Publication Number Publication Date
JPS55158255A true JPS55158255A (en) 1980-12-09
JPS5945750B2 JPS5945750B2 (en) 1984-11-08

Family

ID=13285576

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6538979A Expired JPS5945750B2 (en) 1979-05-25 1979-05-25 Steel for line pipes with excellent wet carbon dioxide corrosion resistance and weldability

Country Status (1)

Country Link
JP (1) JPS5945750B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102199736A (en) * 2010-03-23 2011-09-28 宝山钢铁股份有限公司 High-strength and anti-CO2/H2S corrosion seamless gathering-line pipe
CN104498836A (en) * 2014-12-22 2015-04-08 湖北长江石化设备有限公司 Corrosion-resistant rare earth alloy steel

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62167647A (en) * 1986-01-20 1987-07-24 Matsushita Electric Ind Co Ltd Cassette discriminator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102199736A (en) * 2010-03-23 2011-09-28 宝山钢铁股份有限公司 High-strength and anti-CO2/H2S corrosion seamless gathering-line pipe
CN104498836A (en) * 2014-12-22 2015-04-08 湖北长江石化设备有限公司 Corrosion-resistant rare earth alloy steel
CN104498836B (en) * 2014-12-22 2016-06-08 湖北长江石化设备有限公司 A kind of corrosion-proof rare earth steel alloy

Also Published As

Publication number Publication date
JPS5945750B2 (en) 1984-11-08

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