EP0097254A3 - Process for manufacturing and treating high-alloy stainless ferritic chromium-molybdenum-nickel steels - Google Patents

Process for manufacturing and treating high-alloy stainless ferritic chromium-molybdenum-nickel steels Download PDF

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Publication number
EP0097254A3
EP0097254A3 EP83105064A EP83105064A EP0097254A3 EP 0097254 A3 EP0097254 A3 EP 0097254A3 EP 83105064 A EP83105064 A EP 83105064A EP 83105064 A EP83105064 A EP 83105064A EP 0097254 A3 EP0097254 A3 EP 0097254A3
Authority
EP
European Patent Office
Prior art keywords
molybdenum
steel
chromium
manufacturing
ferritic chromium
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Withdrawn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
EP83105064A
Other languages
German (de)
French (fr)
Other versions
EP0097254A2 (en
Inventor
Helmut Dr.-Ing. Brandis
Rudolf Dr.-Ing. Oppenheim
Heinrich Dr.-Ing. Kiesheyer
Gustav Dr.-Ing. Lennartz
Rainer Dr.-Ing. Thielmann
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.)
Thyssen Stahl AG
Original Assignee
Thyssen Edelstahlwerke AG
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 Thyssen Edelstahlwerke AG filed Critical Thyssen Edelstahlwerke AG
Publication of EP0097254A2 publication Critical patent/EP0097254A2/en
Publication of EP0097254A3 publication Critical patent/EP0097254A3/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • 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
    • 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
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

Verfahren zur Erzeugung und Verarbeitung von Stahler­ zeugnissen aus hochkorrosionsbeständigen ferritischen Chrom-Molybdän-Nickel-Stähien des Typs Superferrit mit Rest Eisen und erschmelzungsbedingte Verunreinigungen Process for the production and processing of steel products from highly corrosion-resistant ferritic chromium-molybdenum-nickel steel of the Superferrite type Remainder iron and melting-related impurities

Dabei ist die Gehaltssumme an Chrom, dem 8-fachen an Molybdän und dem 6-fachen an Silizium auf mindestens 40% und höchstens 50 % begrenzt. Weiterhin ist die Gehaltssum­ me aus den insbesondere Kohlenstoff- und Stickstoff abbin­ denden Elementen Niob und Zirkonium sowie aus dem 3,4-fachen vom Aluminiumgehalt und dem 1,9-fachen vom Titangehalt mindestens das 10-fache und höchstens das 20-fache der Gehaltssumme an Kohlenstoff und Stickstoff, jedoch höchstens das 12-fache dieser Gehaltssumme % (C+N) + 0,16 %. The total amount of chromium is 8 times higher Molybdenum and 6 times the silicon to at least 40% and limited to a maximum of 50%. Furthermore, the salary is me from the particular carbon and nitrogen niobium and zirconium as well as from the 3.4 times the aluminum content and 1.9 times the Titanium content at least 10 times and at most 20 times the total amount of carbon and nitrogen, however at most 12 times this salary sum% (C + N) + 0.16%.

Die nach bekannten Blasstahlverfahren hergestellten Stahlschmelzen können über Stranggußanlagen zu Guß-­ Knüppeln oder Gußbrammenformaten abgegossen und anschließend wahlweise ohne oder mit Zwischenabkühlung und ggf. Wiedererwärmung zu Halbfertig- oder Fertigproduk­ ten verarbeitet werden. The manufactured according to known blowing steel processes Steel melts can be Cast billets or slab formats and then optionally with or without intermediate cooling and if necessary reheating to semi-finished or finished product be processed.

EP83105064A 1982-06-04 1983-05-21 Process for manufacturing and treating high-alloy stainless ferritic chromium-molybdenum-nickel steels Withdrawn EP0097254A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823221087 DE3221087A1 (en) 1982-06-04 1982-06-04 METHOD FOR PRODUCING AND PROCESSING HIGH ALLOY NON-RUSTIC FERRITIC CHROME-MOLYBDAEN-NICKEL STEELS
DE3221087 1982-06-04

Publications (2)

Publication Number Publication Date
EP0097254A2 EP0097254A2 (en) 1984-01-04
EP0097254A3 true EP0097254A3 (en) 1984-07-04

Family

ID=6165314

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83105064A Withdrawn EP0097254A3 (en) 1982-06-04 1983-05-21 Process for manufacturing and treating high-alloy stainless ferritic chromium-molybdenum-nickel steels

Country Status (3)

Country Link
EP (1) EP0097254A3 (en)
JP (1) JPS5925926A (en)
DE (1) DE3221087A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4942922A (en) * 1988-10-18 1990-07-24 Crucible Materials Corporation Welded corrosion-resistant ferritic stainless steel tubing having high resistance to hydrogen embrittlement and a cathodically protected heat exchanger containing the same
FR2732360B1 (en) * 1995-03-29 1998-03-20 Ugine Savoie Sa FERRITIC STAINLESS STEEL FOR USE, IN PARTICULAR FOR CATALYST SUPPORTS
FR2746114B1 (en) * 1996-03-15 1998-04-24 PROCESS FOR PRODUCING FERRITIC STAINLESS STEEL HAVING IMPROVED CORROSION RESISTANCE, IN PARTICULAR INTERGRANULAR AND PITCH CORROSION RESISTANCE
CN108842033B (en) * 2018-06-28 2020-05-22 共享铸钢有限公司 Control method of boron element in refining process

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1422764A (en) * 1965-01-28 1965-12-24 Sandvikens Jernverks Ab Corrosion resistant alloy steel
FR2091642A5 (en) * 1970-05-16 1972-01-14 Nippon Steel Corp Stainless steel resistant to pitting corrosion -and suitable for comp - used in sewater
FR2158943A5 (en) * 1971-10-26 1973-06-15 Deutsche Edelstahlwerke Ag
FR2197996A1 (en) * 1972-09-04 1974-03-29 Schoeller Bleckmann Stahlwerke
DE2457089A1 (en) * 1973-12-10 1975-06-12 Schoeller Bleckmann Stahlwerke Austenitic - ferritic chromium-nickel-nitrogen steels - for chemical industry esp food, paper and fermentation industries
DE2701329B1 (en) * 1977-01-14 1977-12-22 Thyssen Edelstahlwerke Ag CORROSION-RESISTANT FERRITIC CHROME-MOLYBDAEN-NICKEL STEEL

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1422764A (en) * 1965-01-28 1965-12-24 Sandvikens Jernverks Ab Corrosion resistant alloy steel
FR2091642A5 (en) * 1970-05-16 1972-01-14 Nippon Steel Corp Stainless steel resistant to pitting corrosion -and suitable for comp - used in sewater
FR2158943A5 (en) * 1971-10-26 1973-06-15 Deutsche Edelstahlwerke Ag
FR2197996A1 (en) * 1972-09-04 1974-03-29 Schoeller Bleckmann Stahlwerke
DE2457089A1 (en) * 1973-12-10 1975-06-12 Schoeller Bleckmann Stahlwerke Austenitic - ferritic chromium-nickel-nitrogen steels - for chemical industry esp food, paper and fermentation industries
DE2701329B1 (en) * 1977-01-14 1977-12-22 Thyssen Edelstahlwerke Ag CORROSION-RESISTANT FERRITIC CHROME-MOLYBDAEN-NICKEL STEEL

Also Published As

Publication number Publication date
EP0097254A2 (en) 1984-01-04
JPS5925926A (en) 1984-02-10
DE3221087A1 (en) 1983-12-08

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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18D Application deemed to be withdrawn

Effective date: 19860402

RIN1 Information on inventor provided before grant (corrected)

Inventor name: OPPENHEIM, RUDOLF, DR.-ING.

Inventor name: THIELMANN, RAINER, DR.-ING.

Inventor name: KIESHEYER, HEINRICH, DR.-ING.

Inventor name: LENNARTZ, GUSTAV, DR.-ING.

Inventor name: BRANDIS, HELMUT, DR.-ING.