JPS56251A - Cr-mo steel of excellent strength and tenacity to be hot- worked - Google Patents

Cr-mo steel of excellent strength and tenacity to be hot- worked

Info

Publication number
JPS56251A
JPS56251A JP7379379A JP7379379A JPS56251A JP S56251 A JPS56251 A JP S56251A JP 7379379 A JP7379379 A JP 7379379A JP 7379379 A JP7379379 A JP 7379379A JP S56251 A JPS56251 A JP S56251A
Authority
JP
Japan
Prior art keywords
steel
tenacity
worked
hot
strength
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
JP7379379A
Other languages
Japanese (ja)
Other versions
JPS5942745B2 (en
Inventor
Yasuo Otani
Seiichi Watanabe
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 JP54073793A priority Critical patent/JPS5942745B2/en
Publication of JPS56251A publication Critical patent/JPS56251A/en
Publication of JPS5942745B2 publication Critical patent/JPS5942745B2/en
Expired legal-status Critical Current

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  • Heat Treatment Of Steel (AREA)

Abstract

PURPOSE: To provide a Cr-Mo steel which excels in strength and tenacity and is to be hot-worked and does not undergo refining heat treatment and whose welding property does not fall and which comprises prescribed quantities of C, Si, Mn, Cr and Mo as basic constituents, limited quantities of B.sol Al and N and the rest of Fe and unavoidable impurities.
CONSTITUTION: A Cr-Mo steel, which excels in strength and tenacity and is to be hot-worked, is composed of 0.11W1.17% of C, 0.5W0.8% of Si, 0.3W0.65% of Mn, 1.15W1.5% of Cr and 0.45W0.65% of Mo as basic constituents, 0.00015% of B, 0.005W 0.1% of Al (sol), less than 0.004% of N and the rest of Fe and unavoidable impurities. Because of the addition of the B, the welding property of the steel is not deteriorated. Even if annealing for removal of welding residual stress is effected, a necessary strength is assured for a plate made of the steel.
COPYRIGHT: (C)1981,JPO&Japio
JP54073793A 1979-06-11 1979-06-11 Non-thermal heat working Cr-Mo steel with excellent strength and toughness Expired JPS5942745B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54073793A JPS5942745B2 (en) 1979-06-11 1979-06-11 Non-thermal heat working Cr-Mo steel with excellent strength and toughness

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54073793A JPS5942745B2 (en) 1979-06-11 1979-06-11 Non-thermal heat working Cr-Mo steel with excellent strength and toughness

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP11371284A Division JPS6024350A (en) 1984-06-01 1984-06-01 Unnormalized cr-mo steel for hot working with superior strength and toughness

Publications (2)

Publication Number Publication Date
JPS56251A true JPS56251A (en) 1981-01-06
JPS5942745B2 JPS5942745B2 (en) 1984-10-17

Family

ID=13528412

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54073793A Expired JPS5942745B2 (en) 1979-06-11 1979-06-11 Non-thermal heat working Cr-Mo steel with excellent strength and toughness

Country Status (1)

Country Link
JP (1) JPS5942745B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4375377A (en) * 1981-02-25 1983-03-01 Sumitomo Metal Industries, Limited Steels which are useful in fabricating pressure vessels
JPS58207360A (en) * 1982-05-27 1983-12-02 Sumitomo Metal Ind Ltd Stainless clad cr-mo steel plate
JPS59170243A (en) * 1983-03-14 1984-09-26 Nippon Steel Corp High-strength and high-toughness low alloy heat- resisting steel having improved characteristics resistant to creep embrittleness
US4537644A (en) * 1981-09-28 1985-08-27 Nippon Steel Corporation High-tension high-toughness steel having excellent resistance to delayed fracture and method for producing the same
JPS62256946A (en) * 1986-04-30 1987-11-09 Nippon Kokan Kk <Nkk> Cr-Mo steel with excellent creep embrittlement resistance and cold cracking resistance

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4937813A (en) * 1972-08-11 1974-04-08

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4937813A (en) * 1972-08-11 1974-04-08

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4375377A (en) * 1981-02-25 1983-03-01 Sumitomo Metal Industries, Limited Steels which are useful in fabricating pressure vessels
US4537644A (en) * 1981-09-28 1985-08-27 Nippon Steel Corporation High-tension high-toughness steel having excellent resistance to delayed fracture and method for producing the same
JPS58207360A (en) * 1982-05-27 1983-12-02 Sumitomo Metal Ind Ltd Stainless clad cr-mo steel plate
JPS59170243A (en) * 1983-03-14 1984-09-26 Nippon Steel Corp High-strength and high-toughness low alloy heat- resisting steel having improved characteristics resistant to creep embrittleness
JPS62256946A (en) * 1986-04-30 1987-11-09 Nippon Kokan Kk <Nkk> Cr-Mo steel with excellent creep embrittlement resistance and cold cracking resistance

Also Published As

Publication number Publication date
JPS5942745B2 (en) 1984-10-17

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