JPS54153717A - Steel ror hot processing - Google Patents

Steel ror hot processing

Info

Publication number
JPS54153717A
JPS54153717A JP6162778A JP6162778A JPS54153717A JP S54153717 A JPS54153717 A JP S54153717A JP 6162778 A JP6162778 A JP 6162778A JP 6162778 A JP6162778 A JP 6162778A JP S54153717 A JPS54153717 A JP S54153717A
Authority
JP
Japan
Prior art keywords
steel
hot processing
ror
machinery
contained
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
JP6162778A
Other languages
Japanese (ja)
Other versions
JPS5937737B2 (en
Inventor
Shinichi Suzuki
Takeshi Miki
Yutaka Tsuchida
Masahisa Akazawa
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
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP53061627A priority Critical patent/JPS5937737B2/en
Publication of JPS54153717A publication Critical patent/JPS54153717A/en
Publication of JPS5937737B2 publication Critical patent/JPS5937737B2/en
Expired legal-status Critical Current

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  • Heat Treatment Of Steel (AREA)

Abstract

PURPOSE: To let it have excellent toughness without the need for reheating treatment after hot forging by adding Ti in a specific amount to steel in relation to S and N contained in structural steel for machinery.
CONSTITUTION: A molten structural steel for machinery, containing 0.25 to 0.7% C, 0.15 to 0.35% Si, 0.3 to 2% Mn, and one or more of 0.2 to 1.0% Cr, 0.1 to 0.5% Mo, and 0.4 to 2.0% Ni, is sufficiently deoxidized by Ca, Mg, REM, etc., and then 0.005 to 0.03% Ti enough to satisfy S and N contained as impurities and the following formula is added to the molten steel; that is, Ti/(3S+N)=0.4 to 1.0. The steel, in which the growth of crystals is suppressed and also low temperature toughness is raised even when it is forged at a high temperature of approx. 120°C, is applicable to steel material for hot processing which is usable without reheating treatment for reaustenitizing.
COPYRIGHT: (C)1979,JPO&Japio
JP53061627A 1978-05-25 1978-05-25 Steel materials for hot forging Expired JPS5937737B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53061627A JPS5937737B2 (en) 1978-05-25 1978-05-25 Steel materials for hot forging

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53061627A JPS5937737B2 (en) 1978-05-25 1978-05-25 Steel materials for hot forging

Publications (2)

Publication Number Publication Date
JPS54153717A true JPS54153717A (en) 1979-12-04
JPS5937737B2 JPS5937737B2 (en) 1984-09-11

Family

ID=13176603

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53061627A Expired JPS5937737B2 (en) 1978-05-25 1978-05-25 Steel materials for hot forging

Country Status (1)

Country Link
JP (1) JPS5937737B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63165860U (en) * 1987-04-17 1988-10-28

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5143312A (en) * 1974-10-12 1976-04-14 Nippon Steel Corp Tanzosei oyobi kyodotokuseino suguretakikaikozoyoteigokinko
JPS52115719A (en) * 1976-03-25 1977-09-28 Kawasaki Steel Co Pc bar steel suitable for continuous casting
JPS52131918A (en) * 1976-04-28 1977-11-05 Nippon Kokan Kk <Nkk> Production of non-refined high tensile thick steel plate with excellent toughness
JPS5324888A (en) * 1976-08-19 1978-03-08 Kyowa Hakko Kogyo Kk Composition for quantitating fats containing phosphorus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5143312A (en) * 1974-10-12 1976-04-14 Nippon Steel Corp Tanzosei oyobi kyodotokuseino suguretakikaikozoyoteigokinko
JPS52115719A (en) * 1976-03-25 1977-09-28 Kawasaki Steel Co Pc bar steel suitable for continuous casting
JPS52131918A (en) * 1976-04-28 1977-11-05 Nippon Kokan Kk <Nkk> Production of non-refined high tensile thick steel plate with excellent toughness
JPS5324888A (en) * 1976-08-19 1978-03-08 Kyowa Hakko Kogyo Kk Composition for quantitating fats containing phosphorus

Also Published As

Publication number Publication date
JPS5937737B2 (en) 1984-09-11

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