EP1152065A3 - Process for producing high strength austenitic stainless steel - Google Patents

Process for producing high strength austenitic stainless steel Download PDF

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Publication number
EP1152065A3
EP1152065A3 EP01110579A EP01110579A EP1152065A3 EP 1152065 A3 EP1152065 A3 EP 1152065A3 EP 01110579 A EP01110579 A EP 01110579A EP 01110579 A EP01110579 A EP 01110579A EP 1152065 A3 EP1152065 A3 EP 1152065A3
Authority
EP
European Patent Office
Prior art keywords
steels
austenitic
stainless
stainless steel
high strength
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.)
Withdrawn
Application number
EP01110579A
Other languages
German (de)
French (fr)
Other versions
EP1152065A2 (en
Inventor
Klaus-Peter Dr. Erkel
Rudolf Prof. Dr.-Ing. Kawalla
Gerd Dr. Riedel
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1152065A2 publication Critical patent/EP1152065A2/en
Publication of EP1152065A3 publication Critical patent/EP1152065A3/en
Withdrawn legal-status Critical Current

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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 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
    • 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
    • C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
    • C21D8/08—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires for concrete reinforcement
    • 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
    • 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
    • C21D9/0093—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for screws; for bolts

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  • 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)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

Die Erfindung bezieht sich auf die Herstellung von nichtrostenden Baustählen der austenitischen Klasse, die in einem breiten Erzeugnis-Sortiment als Stäbe, Drähte, Rohre, Bleche, Bänder oder Schmiedestücke hergestellt werden.The invention relates to the production of stainless steels austenitic class, which in a wide range of products as rods, wires, Pipes, sheets, strips or forgings can be produced.

Es wurde ein Verfahren entwickelt, mit dem höherfeste austenitische Stähle, insbesondere nichtrostende austenitische Stähle bekannter chemischer Zusammensetzung, z.B. nach DIN EN 10088 T 1 - 3, 1985, Nichtrostende Stähle, hergestellt werden können, die gegenüber dem klassischen Lieferzustand AS (lösungsgeglüht) deutlich erhöhte Werte bezüglich Dehngrenze und Zugfestigkeit bei guten Zähigkeitseigenschaften aufweisen. Dieses Verfahren ist dadurch gekennzeichnet, daß die Stähle bei Umformtemperaturen unter der Lösungsglühtemperatur (1000°C ) gewalzt oder geschmiedet werden und durch schnelle Abkühlung an Luft und/oder Wasser ein sehr feines, in der Regel nicht rekristallisiertes Gefüge entsteht.A process was developed with which high-strength austenitic steels, especially stainless austenitic steels of known chemical Composition, e.g. according to DIN EN 10088 T 1 - 3, 1985, stainless steels, can be manufactured, which are compared to the classic delivery condition AS (solution annealed) significantly increased values with regard to yield strength and tensile strength have good toughness properties. This process is characterized by that the steels at forming temperatures below the solution annealing temperature (1000 ° C) rolled or forged and by rapid cooling in air and / or water creates a very fine, usually not recrystallized structure.

EP01110579A 2000-05-02 2001-04-30 Process for producing high strength austenitic stainless steel Withdrawn EP1152065A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10021323 2000-05-02
DE2000121323 DE10021323A1 (en) 2000-05-02 2000-05-02 Production of a high strength austenitic steel comprises rolling or forging the steel at deformation temperatures below the solution annealing temperature, and producing a very fine

Publications (2)

Publication Number Publication Date
EP1152065A2 EP1152065A2 (en) 2001-11-07
EP1152065A3 true EP1152065A3 (en) 2004-01-02

Family

ID=7640515

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01110579A Withdrawn EP1152065A3 (en) 2000-05-02 2001-04-30 Process for producing high strength austenitic stainless steel

Country Status (2)

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EP (1) EP1152065A3 (en)
DE (1) DE10021323A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109652639B (en) * 2018-12-29 2024-02-09 佛山市诚德新材料有限公司 Annealing furnace for stainless steel strip
RU2735777C1 (en) * 2020-05-07 2020-11-09 Федеральное государственное автономное образовательное учреждение высшего образования "Белгородский государственный национальный исследовательский университет" (НИУ "БелГУ") Method of producing rolled semi-products from austenitic corrosion-resistant steel

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4295900A (en) * 1977-06-14 1981-10-20 Fagersta Ab Rolled wire having a fine-grain structure
DE3505689A1 (en) * 1985-02-19 1986-08-21 INTERATOM GmbH, 5060 Bergisch Gladbach Process for quenching austenitic steels
DE3617907A1 (en) * 1985-05-29 1986-12-04 Nippon Kokan K.K., Tokio/Tokyo METHOD FOR PRODUCING AUSTENITIC STAINLESS STEEL PLATES WITH HIGH CORROSION RESISTANCE AND HIGH MECHANICAL STRENGTH AT AMBIENT TEMPERATURE AND AT HIGH TEMPERATURES
US4960470A (en) * 1984-03-30 1990-10-02 Aichi Steel Works, Ltd. Method for manufacturing a high strength stainless steel
JPH0344449A (en) * 1989-07-12 1991-02-26 Sumitomo Metal Ind Ltd Stainless steel shape and its production
EP1069192A2 (en) * 1999-07-15 2001-01-17 Thyssen Krupp Stahl AG Method of manufacturing a steel strip by flexible rolling

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5658954A (en) * 1979-10-22 1981-05-22 Japan Atom Energy Res Inst Solid solution hardening type iron alloy

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4295900A (en) * 1977-06-14 1981-10-20 Fagersta Ab Rolled wire having a fine-grain structure
US4960470A (en) * 1984-03-30 1990-10-02 Aichi Steel Works, Ltd. Method for manufacturing a high strength stainless steel
DE3505689A1 (en) * 1985-02-19 1986-08-21 INTERATOM GmbH, 5060 Bergisch Gladbach Process for quenching austenitic steels
DE3617907A1 (en) * 1985-05-29 1986-12-04 Nippon Kokan K.K., Tokio/Tokyo METHOD FOR PRODUCING AUSTENITIC STAINLESS STEEL PLATES WITH HIGH CORROSION RESISTANCE AND HIGH MECHANICAL STRENGTH AT AMBIENT TEMPERATURE AND AT HIGH TEMPERATURES
JPH0344449A (en) * 1989-07-12 1991-02-26 Sumitomo Metal Ind Ltd Stainless steel shape and its production
EP1069192A2 (en) * 1999-07-15 2001-01-17 Thyssen Krupp Stahl AG Method of manufacturing a steel strip by flexible rolling

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 015, no. 181 (C - 0830) 9 May 1991 (1991-05-09) *

Also Published As

Publication number Publication date
EP1152065A2 (en) 2001-11-07
DE10021323A1 (en) 2001-11-08

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