JPS55107723A - Production of austenite-base stainless steel for hot working - Google Patents

Production of austenite-base stainless steel for hot working

Info

Publication number
JPS55107723A
JPS55107723A JP1577879A JP1577879A JPS55107723A JP S55107723 A JPS55107723 A JP S55107723A JP 1577879 A JP1577879 A JP 1577879A JP 1577879 A JP1577879 A JP 1577879A JP S55107723 A JPS55107723 A JP S55107723A
Authority
JP
Japan
Prior art keywords
austenite
stainless steel
base stainless
content
hot working
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
JP1577879A
Other languages
Japanese (ja)
Other versions
JPS5940206B2 (en
Inventor
Takeshi Inoue
Yoshitaka Ochita
Shoji Kawada
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP1577879A priority Critical patent/JPS5940206B2/en
Publication of JPS55107723A publication Critical patent/JPS55107723A/en
Publication of JPS5940206B2 publication Critical patent/JPS5940206B2/en
Expired 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni

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 fine austenite particles and improve hot workability by decreasing the Nb content of the Nb-contained austenite-base stainless steel to 1.5-4 times the C content and applying solution-heat treatment at the specific temperature. CONSTITUTION:The amount of Nb to be contained in the austenite-base stainless steel is reduced from conventional 10 times the C content to 1.5-4 times and is made 0.3% or less. This stainless steel is subjected to working such as hot forging, after which it is subjected to solution-heat treatment at the temperature range T deg.C which satisfies 900 deg.C<=T deg.C<=250 deg.CXNb%+1050 deg.C. This yields the fine austenite particles of ASTM grain size number No. 3 or more in which the recrystallization of austenite particles has sufficiently completed, the relief of strain is sufficient and the recrystallization grain size of austenite has no inconveniences at all in the nondestructive testing of ultrasonic flaw detection, whereby the austenite-base stainless steel for hot working may be produced.
JP1577879A 1979-02-14 1979-02-14 Method for producing austenitic stainless steel for hot working Expired JPS5940206B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1577879A JPS5940206B2 (en) 1979-02-14 1979-02-14 Method for producing austenitic stainless steel for hot working

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1577879A JPS5940206B2 (en) 1979-02-14 1979-02-14 Method for producing austenitic stainless steel for hot working

Publications (2)

Publication Number Publication Date
JPS55107723A true JPS55107723A (en) 1980-08-19
JPS5940206B2 JPS5940206B2 (en) 1984-09-28

Family

ID=11898263

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1577879A Expired JPS5940206B2 (en) 1979-02-14 1979-02-14 Method for producing austenitic stainless steel for hot working

Country Status (1)

Country Link
JP (1) JPS5940206B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016512573A (en) * 2013-03-13 2016-04-28 アレバ・エヌペ Stainless steel for hot forging and method of hot forging using this steel
CN111455161A (en) * 2020-04-08 2020-07-28 山西太钢不锈钢股份有限公司 Method for regulating and controlling structure performance of austenitic heat-resistant stainless steel seamless tube

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016512573A (en) * 2013-03-13 2016-04-28 アレバ・エヌペ Stainless steel for hot forging and method of hot forging using this steel
CN111455161A (en) * 2020-04-08 2020-07-28 山西太钢不锈钢股份有限公司 Method for regulating and controlling structure performance of austenitic heat-resistant stainless steel seamless tube
CN111455161B (en) * 2020-04-08 2021-11-16 山西太钢不锈钢股份有限公司 Method for regulating and controlling structure performance of austenitic heat-resistant stainless steel seamless tube

Also Published As

Publication number Publication date
JPS5940206B2 (en) 1984-09-28

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