DE470055T1 - METHOD FOR PRODUCING A FIRE-RESISTANT STRUCTURAL STEEL. - Google Patents

METHOD FOR PRODUCING A FIRE-RESISTANT STRUCTURAL STEEL.

Info

Publication number
DE470055T1
DE470055T1 DE199191830320T DE91830320T DE470055T1 DE 470055 T1 DE470055 T1 DE 470055T1 DE 199191830320 T DE199191830320 T DE 199191830320T DE 91830320 T DE91830320 T DE 91830320T DE 470055 T1 DE470055 T1 DE 470055T1
Authority
DE
Germany
Prior art keywords
steel
temperature
fire
producing
structural 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.)
Pending
Application number
DE199191830320T
Other languages
German (de)
Inventor
Aldo Aldrovandi
Antonino Genova Pizzimenti
Aldo Terni Santafe
Original Assignee
Ilva S.P.A., Rom/Roma
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 Ilva S.P.A., Rom/Roma filed Critical Ilva S.P.A., Rom/Roma
Publication of DE470055T1 publication Critical patent/DE470055T1/en
Pending 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling
    • 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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Heat Treatment Of Steel (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Building Environments (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Claims (1)

EU 1231 - Lw/PiEU 1231 - Lw/Pi Verfahren von feuerbeständigem BaustahlProcess of fire-resistant structural steel AnsprücheExpectations Verfahren zur Herstellung eines Baustahls mit verbesserter Feuerbeständigkeit,Process for producing a structural steel with improved fire resistance, gekennzeichnet durch die Kombination eines die folgenden Elemente enthaltenden Stahls (Gew.-%): 0=0,03-0,14, Mn=O,4-1,1, MO=O,3-0,8, Nb=O,003-0 ,05, bis zu 0,20 Si, bis zu 0,02 P, bis zu 0,02 S, bis zu 0,20 Cr, bis zu 0,04 Al, bis zu 0,04 Ti, bis zu 0,20 Cu und wenigstens eines der folgenden Elemente: N=O,002-0,010, V=O ,003-0,05, wobei der Rest Eisen und Verunreinigungen sind, sowie des folgenden Herstellungszyklus:characterized by the combination of a steel containing the following elements (wt.%): O=0.03-0.14, Mn=O.4-1.1, MO=O.3-0.8, Nb=O.003-0.05, up to 0.20 Si, up to 0.02 P, up to 0.02 S, up to 0.20 Cr, up to 0.04 Al, up to 0.04 Ti, up to 0.20 Cu and at least one of the following elements: N=O.002-0.010, V=O.003-0.05, the remainder being iron and impurities, and the following manufacturing cycle: - Erwärmen des Stahls in Form von Barren, Knüppeln oder Vorblöcken auf eine Temperatur zwischen 1200 und 13000C vor dem Warmwalzen- Heating the steel in the form of ingots, billets or blooms to a temperature between 1200 and 1300 0 C before hot rolling - Warmwalzen des Stahls unter Endwalzen bei einer Temperatur zwischen 800 und 9500C zum Erhalt eines gewalzten Stahls von 1,5 bis 12 nun Dicke- Hot rolling of the steel under final rolling at a temperature between 800 and 950 0 C to obtain a rolled steel of 1.5 to 12 mm thickness - Wasserkühlung des gewalzten Stahls von einer Temperatur zwischen 800 und 9500C auf zwischen 550 und 7000C bei einer Geschwindigkeit zwischen 5 und 35°C/sec- Water cooling of the rolled steel from a temperature between 800 and 950 0 C to between 550 and 700 0 C at a speed between 5 and 35°C/sec - Wickeln dieses Stahls bei einer Temperatur zwischen und 7000C.- Coiling this steel at a temperature between and 700 0 C.
DE199191830320T 1990-08-01 1991-07-19 METHOD FOR PRODUCING A FIRE-RESISTANT STRUCTURAL STEEL. Pending DE470055T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT48204A IT1242132B (en) 1990-08-01 1990-08-01 PROCEDURE FOR THE PRODUCTION OF A FIRE RESISTANT STRUCTURAL STEEL

Publications (1)

Publication Number Publication Date
DE470055T1 true DE470055T1 (en) 1992-11-26

Family

ID=11265207

Family Applications (1)

Application Number Title Priority Date Filing Date
DE199191830320T Pending DE470055T1 (en) 1990-08-01 1991-07-19 METHOD FOR PRODUCING A FIRE-RESISTANT STRUCTURAL STEEL.

Country Status (4)

Country Link
EP (1) EP0470055A3 (en)
DE (1) DE470055T1 (en)
ES (1) ES2038108T1 (en)
IT (1) IT1242132B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19724051C1 (en) * 1997-06-07 1999-03-11 Thyssen Stahl Ag Heavy plates up to 50 mm thick made of fire-resistant nickel-free steels for steel construction and process for the production of heavy plates from them
DE19856265A1 (en) * 1998-12-07 2000-06-15 Thyssenkrupp Stahl Ag Process for the production of fire-resistant steel sheets
DE10258114B4 (en) * 2001-12-14 2005-11-10 V&M Deutschland Gmbh Fire-resistant welding steel in the form of hollow profiles, supports or molded steel contains alloying additions of silicon, manganese, aluminum, molybdenum, tungsten and niobium

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1101193A (en) * 1966-01-21 1968-01-31 United Steel Companies Ltd Steel
GB1191317A (en) * 1966-07-21 1970-05-13 Yawata Iron Steel Co Ltd Weldable High Strength Structural Steel not Embrittled by Stress-Relieving Annealings
GB1228270A (en) * 1968-08-01 1971-04-15
US3860456A (en) * 1973-05-31 1975-01-14 United States Steel Corp Hot-rolled high-strength low-alloy steel and process for producing same
US4990196A (en) * 1988-06-13 1991-02-05 Nippon Steel Corporation Process for manufacturing building construction steel having excellent fire resistance and low yield ratio

Also Published As

Publication number Publication date
ES2038108T1 (en) 1993-07-16
EP0470055A3 (en) 1992-06-03
IT1242132B (en) 1994-02-16
IT9048204A1 (en) 1992-02-01
IT9048204A0 (en) 1990-08-01
EP0470055A2 (en) 1992-02-05

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