JPS56252A - 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
JPS56252A
JPS56252A JP7379279A JP7379279A JPS56252A JP S56252 A JPS56252 A JP S56252A JP 7379279 A JP7379279 A JP 7379279A JP 7379279 A JP7379279 A JP 7379279A JP S56252 A JPS56252 A JP S56252A
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
JP7379279A
Other languages
Japanese (ja)
Other versions
JPS5942744B2 (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 JP54073792A priority Critical patent/JPS5942744B2/en
Publication of JPS56252A publication Critical patent/JPS56252A/en
Publication of JPS5942744B2 publication Critical patent/JPS5942744B2/en
Expired legal-status Critical Current

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Landscapes

  • 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 0.11W0.17% of C, 0.05W0.5% of Si, 0.3W0.65% of Mn, 0.8W1.15% of Cr and 0.45W0.65% of Mo as basic constituents, 0.00015W0.001% of B, 0.005W0.1% of Al (sol), less than 0.004% of N and the rest of Fe and unavoidable impurities. Even if conventional refining heat treatment is not performed and annealing for removal of welding residual stress is effected, a necessary strength is assured for a plate made of the steel. Therefore, the manufacturing process of the steel is simplified.
COPYRIGHT: (C)1981,JPO&Japio
JP54073792A 1979-06-11 1979-06-11 Non-thermal heat working Cr-Mo steel with excellent strength and toughness Expired JPS5942744B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54073792A JPS5942744B2 (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
JP54073792A JPS5942744B2 (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
JP11371184A Division JPS6024349A (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
JPS56252A true JPS56252A (en) 1981-01-06
JPS5942744B2 JPS5942744B2 (en) 1984-10-17

Family

ID=13528385

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54073792A Expired JPS5942744B2 (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) JPS5942744B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58207360A (en) * 1982-05-27 1983-12-02 Sumitomo Metal Ind Ltd Stainless clad cr-mo steel plate
JPS62256946A (en) * 1986-04-30 1987-11-09 Nippon Kokan Kk <Nkk> Cr-Mo steel with excellent creep embrittlement resistance and cold cracking resistance
JPH02170943A (en) * 1988-12-23 1990-07-02 Nkk Corp Fireproof steel for construction

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61192053U (en) * 1985-05-23 1986-11-29

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58207360A (en) * 1982-05-27 1983-12-02 Sumitomo Metal Ind Ltd Stainless clad cr-mo steel plate
JPS62256946A (en) * 1986-04-30 1987-11-09 Nippon Kokan Kk <Nkk> Cr-Mo steel with excellent creep embrittlement resistance and cold cracking resistance
JPH02170943A (en) * 1988-12-23 1990-07-02 Nkk Corp Fireproof steel for construction

Also Published As

Publication number Publication date
JPS5942744B2 (en) 1984-10-17

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