JPS6455331A - Manufacture of steel material having spheroidized structure - Google Patents

Manufacture of steel material having spheroidized structure

Info

Publication number
JPS6455331A
JPS6455331A JP21259087A JP21259087A JPS6455331A JP S6455331 A JPS6455331 A JP S6455331A JP 21259087 A JP21259087 A JP 21259087A JP 21259087 A JP21259087 A JP 21259087A JP S6455331 A JPS6455331 A JP S6455331A
Authority
JP
Japan
Prior art keywords
point
steel material
steel
rate
manufacture
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.)
Pending
Application number
JP21259087A
Other languages
Japanese (ja)
Inventor
Shinichi Suzuki
Kazuaki Matsumoto
Hisatoshi Tagawa
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP21259087A priority Critical patent/JPS6455331A/en
Publication of JPS6455331A publication Critical patent/JPS6455331A/en
Pending legal-status Critical Current

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  • Heat Treatment Of Steel (AREA)

Abstract

PURPOSE:To properly and efficiently manufacture a steel material having a carbide spheroidized structure by subjecting a steel having a specified compsn. to intermediate cooling under specified conditions after first-stage working. CONSTITUTION:A steel consisting of, by weight, 0.10-2.00% C, 0.10-1.50% Si, 0.10-2.50% Mn, <=0.12% S and the balance Fe or further contg. one or more among 0.10-2.00% Ni, 0.10-15.00% Cr, 0.10-3.00% Mo, 0.10-19.00% W and 0.10-2.20% V is heated too the Ac3 or Accm point or above, worked at >=10% working rate at the Ar3 or Arcm point or above and immediately cooled to a temp. between the Ar1 point and the Ar3 or Arcm point at 1.5-100 deg.C/sec cooling rate. The resulting steel material is worked at 10-80% working rate in the temp. range and cooled to <=500 deg.C at <=2 deg.C/sec cooling rate.
JP21259087A 1987-08-26 1987-08-26 Manufacture of steel material having spheroidized structure Pending JPS6455331A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21259087A JPS6455331A (en) 1987-08-26 1987-08-26 Manufacture of steel material having spheroidized structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21259087A JPS6455331A (en) 1987-08-26 1987-08-26 Manufacture of steel material having spheroidized structure

Publications (1)

Publication Number Publication Date
JPS6455331A true JPS6455331A (en) 1989-03-02

Family

ID=16625217

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21259087A Pending JPS6455331A (en) 1987-08-26 1987-08-26 Manufacture of steel material having spheroidized structure

Country Status (1)

Country Link
JP (1) JPS6455331A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009024218A (en) * 2007-07-19 2009-02-05 Sumitomo Metal Ind Ltd Manufacturing method of rough bearing product
EP1156127A3 (en) * 2000-05-17 2009-05-20 Nissan Motor Company, Limited Steel for high bearing pressure-resistant member, having high machinability, and high bearing pressure-resistant member using same steel
JP2009108354A (en) * 2007-10-29 2009-05-21 Sumitomo Metal Ind Ltd Manufacturing method of rough bearing product

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6021327A (en) * 1983-07-13 1985-02-02 Kawasaki Steel Corp Production of wire rod permitting quick spheroidization
JPS60155621A (en) * 1984-01-24 1985-08-15 Sumitomo Metal Ind Ltd Production of steel bar and wire rod having spheroidized structure

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6021327A (en) * 1983-07-13 1985-02-02 Kawasaki Steel Corp Production of wire rod permitting quick spheroidization
JPS60155621A (en) * 1984-01-24 1985-08-15 Sumitomo Metal Ind Ltd Production of steel bar and wire rod having spheroidized structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1156127A3 (en) * 2000-05-17 2009-05-20 Nissan Motor Company, Limited Steel for high bearing pressure-resistant member, having high machinability, and high bearing pressure-resistant member using same steel
JP2009024218A (en) * 2007-07-19 2009-02-05 Sumitomo Metal Ind Ltd Manufacturing method of rough bearing product
JP2009108354A (en) * 2007-10-29 2009-05-21 Sumitomo Metal Ind Ltd Manufacturing method of rough bearing product

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