DE3586247D1 - HIGH-STRENGTH STAINLESS STEEL AND THEIR PRODUCTION. - Google Patents

HIGH-STRENGTH STAINLESS STEEL AND THEIR PRODUCTION.

Info

Publication number
DE3586247D1
DE3586247D1 DE8585905113T DE3586247T DE3586247D1 DE 3586247 D1 DE3586247 D1 DE 3586247D1 DE 8585905113 T DE8585905113 T DE 8585905113T DE 3586247 T DE3586247 T DE 3586247T DE 3586247 D1 DE3586247 D1 DE 3586247D1
Authority
DE
Germany
Prior art keywords
less
steel
stainless steel
strength stainless
production
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.)
Expired - Fee Related
Application number
DE8585905113T
Other languages
German (de)
Other versions
DE3586247T2 (en
Inventor
Yoshinobu Honkura
Togane Nakajima
Touru Matsuo
Koji Murata
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.)
Aichi Steel Corp
Original Assignee
Aichi 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 Aichi Steel Corp filed Critical Aichi Steel Corp
Application granted granted Critical
Publication of DE3586247D1 publication Critical patent/DE3586247D1/en
Publication of DE3586247T2 publication Critical patent/DE3586247T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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 by deformation combined with, or followed by, heat treatment
    • C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese

Landscapes

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

Abstract

In the prodn. of high strength stainless steel having excellent proof strength (more than 35 kg/mm2 or up to more than 70 kg/mm2) as well as corrosion resistance, in a steel consisting (by wt.) of C (less than 0.03%), Si (less than 2.00%), Mn (less than 5.0%), S (less than 0.030%), Cr (16-20%), Ni (6-13%), N (0.25-0.28%), Nb (0.05-0.25%), B (less than 0.0020%), and Fe and impurities is heated to 950-1300 deg.C, rolled at finish temp. 900-1000 deg.C or 600-900 deg.C for increasing proof strength, while cooling rate after rolling is more than 4 deg.C/min and total working ratio is more than 30%, to have recrystallised fine structure. The steel rolled at finish temp. below 1000 deg.C and after cooling is subjected to low temp. solid soln. treatment at 900-1010 deg.C to have crystal grain number more than 7.5. The steel includes (1) Mo (less than 4%), Cu (less than 4%) and S (less than 0.005%) to improve corrosion resistance or (2) S (0.030-0.080%) and Se (0.005-0.080%) to improve machinability.
DE8585905113T 1985-10-15 1985-10-15 HIGH-STRENGTH STAINLESS STEEL AND THEIR PRODUCTION. Expired - Fee Related DE3586247T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1985/000573 WO1987002388A1 (en) 1985-10-15 1985-10-15 High strength stainless steel, and process for its production

Publications (2)

Publication Number Publication Date
DE3586247D1 true DE3586247D1 (en) 1992-07-23
DE3586247T2 DE3586247T2 (en) 1993-02-25

Family

ID=13846597

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585905113T Expired - Fee Related DE3586247T2 (en) 1985-10-15 1985-10-15 HIGH-STRENGTH STAINLESS STEEL AND THEIR PRODUCTION.

Country Status (3)

Country Link
EP (1) EP0241553B1 (en)
DE (1) DE3586247T2 (en)
WO (1) WO1987002388A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2602015B2 (en) * 1986-08-30 1997-04-23 愛知製鋼株式会社 Stainless steel excellent in corrosion fatigue resistance and seawater resistance and method for producing the same
KR100411286B1 (en) * 1996-12-24 2004-04-03 주식회사 포스코 High strength austenitic stainless steel having superior corrosion resistance and weatherability and method for manufacturing steel sheet using the same

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5326215A (en) * 1976-08-23 1978-03-10 Daido Steel Co Ltd Free cutting steel with improved corrosion resistance
JPS54151505A (en) * 1978-05-09 1979-11-28 Kobe Steel Ltd Austenitic stainless steel microcrystal grain generation
JPS558404A (en) * 1978-06-30 1980-01-22 Nippon Steel Corp Manufacture of austenitic stainless steel used in atmosphere of high-temperature and high-pressure water
JPS5946287B2 (en) * 1979-02-13 1984-11-12 住友金属工業株式会社 Solution treatment method for austenitic stainless steel
JPS5940901B2 (en) * 1981-03-24 1984-10-03 日本ステンレス株式会社 Corrosion-resistant austenitic stainless steel
JPS5825460A (en) * 1981-08-07 1983-02-15 Nippon Stainless Steel Co Ltd High strength austenite stainless steel with high fabrication property and corrosion resistance
JPS5881956A (en) * 1981-11-10 1983-05-17 Aichi Steel Works Ltd Austenitic stainless steel
JPS58144420A (en) * 1982-02-19 1983-08-27 Kawasaki Steel Corp Method of making large-sized austenitic stainless forged steel
JPS6089518A (en) * 1983-10-22 1985-05-20 Sumitomo Metal Ind Ltd Manufacture of austenitic material
JPS6092422A (en) * 1983-10-25 1985-05-24 Nippon Kokan Kk <Nkk> Production of ni-containing low temperature steel having excellent crack opening displacement
JPS60100621A (en) * 1983-11-07 1985-06-04 Nippon Steel Corp Manufacture of austenitic stainless steel with superior strength at high temperature
DE3407305A1 (en) * 1984-02-24 1985-08-29 Mannesmann AG, 4000 Düsseldorf USE OF A CORROSION-RESISTANT AUSTENITIC ALLOY FOR MECHANICALLY STRESSED, WELDABLE COMPONENTS
JPS60197817A (en) * 1984-03-19 1985-10-07 Nippon Kokan Kk <Nkk> Manufacture of austenitic stainless steel material having high yield strength and superior corrosion resistance
JPS60208459A (en) * 1984-03-30 1985-10-21 Aichi Steel Works Ltd High strength stainless steel and its manufacture

Also Published As

Publication number Publication date
DE3586247T2 (en) 1993-02-25
EP0241553A1 (en) 1987-10-21
EP0241553A4 (en) 1989-01-18
WO1987002388A1 (en) 1987-04-23
EP0241553B1 (en) 1992-06-17

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee