JPS5741322A - Spheroidizing method for carbide in steel - Google Patents

Spheroidizing method for carbide in steel

Info

Publication number
JPS5741322A
JPS5741322A JP55117275A JP11727580A JPS5741322A JP S5741322 A JPS5741322 A JP S5741322A JP 55117275 A JP55117275 A JP 55117275A JP 11727580 A JP11727580 A JP 11727580A JP S5741322 A JPS5741322 A JP S5741322A
Authority
JP
Japan
Prior art keywords
steel
carbide
range
temp
hot rolling
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
JP55117275A
Other languages
Japanese (ja)
Other versions
JPS6358889B2 (en
Inventor
Kenji Aihara
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 JP55117275A priority Critical patent/JPS5741322A/en
Publication of JPS5741322A publication Critical patent/JPS5741322A/en
Publication of JPS6358889B2 publication Critical patent/JPS6358889B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

PURPOSE:To enhance the ductility, toughness, cold workability, etc. of steel products by plastically deforming a steel contg. a specified amount of C in a specified temp. range and holding it in a specified temp. range to spheroidize carbide in the steel. CONSTITUTION:A steel contg. <=2% C is heated to 300 deg.C- the Ar3 point and plastically deformed by 5-80% in the temp. range. It is then held at 500 deg.C- the Ar3 point for >=7min and/or annealed to remarkably accelerate the spheroidizing of carbide. The used steel may be a steel allowed to cool naturally after hot rolling, yet by carrying out controlled cooling after hot rolling, a further increased effect is produced.
JP55117275A 1980-08-25 1980-08-25 Spheroidizing method for carbide in steel Granted JPS5741322A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55117275A JPS5741322A (en) 1980-08-25 1980-08-25 Spheroidizing method for carbide in steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55117275A JPS5741322A (en) 1980-08-25 1980-08-25 Spheroidizing method for carbide in steel

Publications (2)

Publication Number Publication Date
JPS5741322A true JPS5741322A (en) 1982-03-08
JPS6358889B2 JPS6358889B2 (en) 1988-11-17

Family

ID=14707719

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55117275A Granted JPS5741322A (en) 1980-08-25 1980-08-25 Spheroidizing method for carbide in steel

Country Status (1)

Country Link
JP (1) JPS5741322A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4581079A (en) * 1985-03-27 1986-04-08 Amax Inc. Bearing steel
US4604145A (en) * 1984-01-13 1986-08-05 Sumitomo Metal Industries, Ltd. Process for production of steel bar or steel wire having an improved spheroidal structure of cementite
JPH06340926A (en) * 1993-04-14 1994-12-13 Sumitomo Metal Ind Ltd Method for spheroidizing wire rod
WO2005085480A1 (en) * 2004-03-04 2005-09-15 Salzgitter Mannesmann Gmbh Method for producing a structural part from hypereutectoid steel

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0241677U (en) * 1988-09-14 1990-03-22

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JOURNAL OF THE IRON AND STEEL INSTITUTE=1971 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4604145A (en) * 1984-01-13 1986-08-05 Sumitomo Metal Industries, Ltd. Process for production of steel bar or steel wire having an improved spheroidal structure of cementite
US4581079A (en) * 1985-03-27 1986-04-08 Amax Inc. Bearing steel
JPH06340926A (en) * 1993-04-14 1994-12-13 Sumitomo Metal Ind Ltd Method for spheroidizing wire rod
WO2005085480A1 (en) * 2004-03-04 2005-09-15 Salzgitter Mannesmann Gmbh Method for producing a structural part from hypereutectoid steel

Also Published As

Publication number Publication date
JPS6358889B2 (en) 1988-11-17

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