JPS5524932A - Manufacture of bainite tough hardening steel - Google Patents

Manufacture of bainite tough hardening steel

Info

Publication number
JPS5524932A
JPS5524932A JP9647978A JP9647978A JPS5524932A JP S5524932 A JPS5524932 A JP S5524932A JP 9647978 A JP9647978 A JP 9647978A JP 9647978 A JP9647978 A JP 9647978A JP S5524932 A JPS5524932 A JP S5524932A
Authority
JP
Japan
Prior art keywords
steel
bainite
manufacture
hardening steel
impurities
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
JP9647978A
Other languages
Japanese (ja)
Other versions
JPS6132371B2 (en
Inventor
Shinichi Suzuki
Takeshi Miki
Yutaka Tsuchida
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 JP9647978A priority Critical patent/JPS5524932A/en
Publication of JPS5524932A publication Critical patent/JPS5524932A/en
Publication of JPS6132371B2 publication Critical patent/JPS6132371B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

PURPOSE: To manufacture bainite tough hardening steel having excellent strength and toughness and uniform perperty in both surface and inside portions by cooling an austentized steel with a specific composition, containing C, Si, Mn, Al, and Fe and impurities, in a hot water.
CONSTITUTION: An austenitized steel, containing 0.01 to 0.2% C, 0.1 to 0.8% Si, 0.5 to 2.5% Mn, 0.005% to 0.05% Al, and Fe and impurities, together with one or two or more of ≤2% Cr, ≤0.5% Cu, ≤2% Ni, ≤0.6% Mo, 0.005 to 0.05% Ti, 0.01 to 0.7% Nb, 0.01 to 0.1% V, and 0.0001 to 0.005% B as needed, is cooled in a hot water of 60°C or more. This method, in which heat-radiating rate from the surface of steel matches with thermal conductivity in steel, can lessen difference in property in thicker portion of steel.
COPYRIGHT: (C)1980,JPO&Japio
JP9647978A 1978-08-08 1978-08-08 Manufacture of bainite tough hardening steel Granted JPS5524932A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9647978A JPS5524932A (en) 1978-08-08 1978-08-08 Manufacture of bainite tough hardening steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9647978A JPS5524932A (en) 1978-08-08 1978-08-08 Manufacture of bainite tough hardening steel

Publications (2)

Publication Number Publication Date
JPS5524932A true JPS5524932A (en) 1980-02-22
JPS6132371B2 JPS6132371B2 (en) 1986-07-26

Family

ID=14166178

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9647978A Granted JPS5524932A (en) 1978-08-08 1978-08-08 Manufacture of bainite tough hardening steel

Country Status (1)

Country Link
JP (1) JPS5524932A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58189321A (en) * 1982-04-30 1983-11-05 Nippon Kokan Kk <Nkk> Manufacture of high tension and high toughness steel material
US4634476A (en) * 1985-05-03 1987-01-06 Paccar Inc High-strength, low-alloy cast steel
JPS62202054A (en) * 1986-03-03 1987-09-05 Sumitomo Metal Ind Ltd Non-heattreated steel for hot forging
JPS63290218A (en) * 1987-05-22 1988-11-28 Komatsu Ltd Manufacture of spheroidal graphite cast iron
JPS63312949A (en) * 1987-06-15 1988-12-21 Kobe Steel Ltd Non-refining steel for hot forging having high toughness
JPH01129953A (en) * 1987-11-16 1989-05-23 Kobe Steel Ltd High strength non-heat treated steel and its manufacture
US5292384A (en) * 1992-07-17 1994-03-08 Martin Marietta Energy Systems, Inc. Cr-W-V bainitic/ferritic steel with improved strength and toughness and method of making
FR2756298A1 (en) * 1996-11-26 1998-05-29 Ascometal Sa STEEL AND PROCESS FOR THE MANUFACTURE OF A MECHANICAL PART HAVING A BATH STRUCTURE
EP1528109A1 (en) * 2003-10-28 2005-05-04 Mannesmannröhren-Werke AG Porcess for the heat treatment of medium carbon steels

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100340691C (en) * 2004-07-29 2007-10-03 宝山钢铁股份有限公司 Bainite die steel in large section for plastic and preparation method

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58189321A (en) * 1982-04-30 1983-11-05 Nippon Kokan Kk <Nkk> Manufacture of high tension and high toughness steel material
US4634476A (en) * 1985-05-03 1987-01-06 Paccar Inc High-strength, low-alloy cast steel
JPS62202054A (en) * 1986-03-03 1987-09-05 Sumitomo Metal Ind Ltd Non-heattreated steel for hot forging
JPH0470385B2 (en) * 1986-03-03 1992-11-10 Sumitomo Metal Ind
JPS63290218A (en) * 1987-05-22 1988-11-28 Komatsu Ltd Manufacture of spheroidal graphite cast iron
JPS63312949A (en) * 1987-06-15 1988-12-21 Kobe Steel Ltd Non-refining steel for hot forging having high toughness
JPH01129953A (en) * 1987-11-16 1989-05-23 Kobe Steel Ltd High strength non-heat treated steel and its manufacture
US5292384A (en) * 1992-07-17 1994-03-08 Martin Marietta Energy Systems, Inc. Cr-W-V bainitic/ferritic steel with improved strength and toughness and method of making
FR2756298A1 (en) * 1996-11-26 1998-05-29 Ascometal Sa STEEL AND PROCESS FOR THE MANUFACTURE OF A MECHANICAL PART HAVING A BATH STRUCTURE
EP0845544A1 (en) * 1996-11-26 1998-06-03 Ascometal Steel product made from bainitic steel and process for making the steel product
EP1528109A1 (en) * 2003-10-28 2005-05-04 Mannesmannröhren-Werke AG Porcess for the heat treatment of medium carbon steels

Also Published As

Publication number Publication date
JPS6132371B2 (en) 1986-07-26

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