JPS5524975A - Producing method of stainless steel for spring use having good punching and age-hardening properties - Google Patents

Producing method of stainless steel for spring use having good punching and age-hardening properties

Info

Publication number
JPS5524975A
JPS5524975A JP9853778A JP9853778A JPS5524975A JP S5524975 A JPS5524975 A JP S5524975A JP 9853778 A JP9853778 A JP 9853778A JP 9853778 A JP9853778 A JP 9853778A JP S5524975 A JPS5524975 A JP S5524975A
Authority
JP
Japan
Prior art keywords
stainless steel
adjusting
age
producing method
steel
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
JP9853778A
Other languages
Japanese (ja)
Other versions
JPS5724054B2 (en
Inventor
Kazuo Hoshino
Sadao Hirotsu
Masahiro Nishimura
Teruyoshi Iida
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 Nisshin Co Ltd
Original Assignee
Nisshin Steel Co 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 Nisshin Steel Co Ltd filed Critical Nisshin Steel Co Ltd
Priority to JP9853778A priority Critical patent/JPS5524975A/en
Publication of JPS5524975A publication Critical patent/JPS5524975A/en
Publication of JPS5724054B2 publication Critical patent/JPS5724054B2/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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/02—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for springs

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)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

PURPOSE:To provide stainless steel having small directional spring characteristic, steel cosisting of C, N, Si, Mn, Ni, Cr, Cu, Ti, Al, the remaining Fe, and unavoidable impurities with each amount of metals being in specific relations is annealed to remove strain and cold rolled at a specified condition prior to ageing treatment. CONSTITUTION:Stainless steel for spring use consists of C <=0.06%, N <=0.03%, Si 0.1 to 2.5%, Mn <=3%, Ni 5 to 9%, Cr 14 to 17%, Cu 0.1 to 2.5%, Ti 0.3 to 1,3%, Al <= 1%, the remaining Fe, and unavoidable impurities and each amount of metals is adjusted to meet the following conditions. Such steel is annealed to remove strain and treated for 50 to 80% cold rolling prior to ageing treatment. The conditions for metal amounts are: value A in the formula I is to be less than 39% by adjusting Mn, Ni, Cr, Cu and Al, Cr-equivalent/Ni-equivalent in the formula II is to be less than 2.7 by adjusting Mn, Ni, Cu, Cr, Ti, Al and Si, and value H in the formula III is to be 5.5 to 8.5 by adjusting C, N, Al, Si, and Cu.
JP9853778A 1978-08-12 1978-08-12 Producing method of stainless steel for spring use having good punching and age-hardening properties Granted JPS5524975A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9853778A JPS5524975A (en) 1978-08-12 1978-08-12 Producing method of stainless steel for spring use having good punching and age-hardening properties

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9853778A JPS5524975A (en) 1978-08-12 1978-08-12 Producing method of stainless steel for spring use having good punching and age-hardening properties

Publications (2)

Publication Number Publication Date
JPS5524975A true JPS5524975A (en) 1980-02-22
JPS5724054B2 JPS5724054B2 (en) 1982-05-21

Family

ID=14222427

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9853778A Granted JPS5524975A (en) 1978-08-12 1978-08-12 Producing method of stainless steel for spring use having good punching and age-hardening properties

Country Status (1)

Country Link
JP (1) JPS5524975A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2479784A1 (en) * 1980-04-03 1981-10-09 Nisshin Steel Co Ltd METAL CONVEYOR BELT AND PROCESS FOR PRODUCING THE SAME
JPS60152660A (en) * 1984-01-23 1985-08-10 Nisshin Steel Co Ltd Precipitation hardening martensitic stainless steel

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3176403B2 (en) * 1991-12-20 2001-06-18 新日本製鐵株式会社 High strength stainless steel foil for corrugating and method for producing the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2479784A1 (en) * 1980-04-03 1981-10-09 Nisshin Steel Co Ltd METAL CONVEYOR BELT AND PROCESS FOR PRODUCING THE SAME
JPS60152660A (en) * 1984-01-23 1985-08-10 Nisshin Steel Co Ltd Precipitation hardening martensitic stainless steel
JPH045726B2 (en) * 1984-01-23 1992-02-03 Nisshin Steel Co Ltd

Also Published As

Publication number Publication date
JPS5724054B2 (en) 1982-05-21

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