EP3483294B1 - Acier laminé en forme de h et procédé de production associé - Google Patents

Acier laminé en forme de h et procédé de production associé Download PDF

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Publication number
EP3483294B1
EP3483294B1 EP17846496.2A EP17846496A EP3483294B1 EP 3483294 B1 EP3483294 B1 EP 3483294B1 EP 17846496 A EP17846496 A EP 17846496A EP 3483294 B1 EP3483294 B1 EP 3483294B1
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Prior art keywords
less
flange
rolled
shaped steel
rolling
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German (de)
English (en)
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EP3483294A1 (fr
EP3483294A4 (fr
Inventor
Hidetoshi Ito
Hiroshi Yamashita
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Nippon Steel Corp
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Nippon Steel Corp
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    • 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
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/088—H- or I-sections
    • 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
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
    • 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
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/13—Modifying the physical properties of iron or steel by deformation by hot working
    • 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
    • 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
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • 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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • 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
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • 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
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • 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
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02—Shape or construction of rolls
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/005—Heat treatment of ferrous alloys containing Mn
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/008—Heat treatment of ferrous alloys containing Si
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Heat Treatment Of Steel (AREA)
  • Metal Rolling (AREA)
  • Rod-Shaped Construction Members (AREA)

Claims (2)

  1. Acier laminé en forme de H, ayant une composition chimique comprenant, en % en masse :
    C : 0,01 à 0,25 %;
    Si : 0,05 % à 0,50 % ;
    Mn : 0,40 à 2,50 % ;
    P : 0,050 % ou moins ;
    S : 0,050 % ou moins ;
    N : 0,020 % ou moins ;
    Cu : 0,70 % ou moins ;
    Ni : 0,70 % ou moins ;
    Cr : 0,50 % ou moins ;
    V : 0,12 % ou moins ;
    Mo : 0,30 % ou moins ;
    Nb : 0,08 % ou moins ;
    Ti : 0,05 % ou moins ;
    Al : 0,07 % ou moins ;
    REM (éléments des terres rares) : 0,010 % ou moins ;
    Ca : 0,0050 % ou moins ; et
    le reste : Fe et impuretés inévitables,
    dans lequel :
    la valeur moyenne des 5 % supérieurs des concentrations de Mn dans la partie la plus fragilisée dans une bride est de 1,6 fois ou moins la concentration de Mn à une position au 1/6 dans la direction de la largeur de la bride depuis une face d'extrémité dans la direction de la largeur de la bride et au 1/4 dans la direction de l'épaisseur de la bride depuis une face d'une bride positionnée sur un côté opposé à celui d'une bande continue ; et
    la valeur moyenne des 5 % supérieurs des concentrations de Mn dans une partie de ségrégation centrale dispersée dans une région espacée de 15 mm ou plus du centre de la largeur de la bride en direction d'une seule face d'extrémité ou des deux faces d'extrémité dans la direction de la largeur de la bride et dans les 2 mm d'une couche de surface de bride dans la direction de l'épaisseur n'est ni inférieure à 1,1 fois ni supérieure à 1,6 fois la concentration de Mn à la position au 1/6 dans la direction de la largeur de la bride depuis la face d'extrémité dans la direction de la largeur de la bride et au 1/4 dans la direction de l'épaisseur de la bride depuis la face de la bride positionnée sur le côté opposé à celui de la bande continue,
    dans lequel la concentration de Mn est mesurée conformément à la description.
  2. Procédé de fabrication d'un acier laminé en forme de H qui est un procédé de fabrication de l'acier laminé en forme de H selon la revendication 1, comprenant le chauffage d'une billette d'acier ayant une section transversale rectangulaire à une température de 1 100 à 1 350 °C, et la mise en œuvre en séquence d'une étape de laminage grossier, d'une étape de laminage intermédiaire, et d'une étape de laminage de finition, dans lequel :
    une pluralité de calibres, à raison de trois ou plus, sont délivrés à un laminoir qui effectue l'étape de laminage grossier, de façon que soit façonné un matériau devant être laminé ;
    au moins l'un parmi la pluralité de calibres est un calibre de création de bandes, fourni à une paire de rouleaux supérieur et inférieur et pourvu de saillies qui créent des bandes verticalement par rapport à la direction de la largeur du matériau devant être laminé ; et
    dans une étape ultérieure, après le calibre de création de bandes, il est fourni un calibre de façonnage qui plie en séquence des parties divisées formées par le calibre de création de bandes,
    dans lequel l'angle de pointe des saillies formées dans le calibre de création de bandes est de 40° ou moins,
    et dans lequel la longueur H de la fente créée par la saillie, l'épaisseur T de la billette d'acier ayant une section transversale rectangulaire, et la largeur F d'une bride de l'acier laminé en forme de H formé par l'étape de laminage de finition, satisfont à l'expression (1) suivante : H ≥ 0,5 F − 0,5 T
    Figure imgb0006
EP17846496.2A 2016-08-29 2017-08-29 Acier laminé en forme de h et procédé de production associé Active EP3483294B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016166535 2016-08-29
PCT/JP2017/030951 WO2018043491A1 (fr) 2016-08-29 2017-08-29 Acier laminé pour poutre en h et procédé de production associé

Publications (3)

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EP3483294A1 EP3483294A1 (fr) 2019-05-15
EP3483294A4 EP3483294A4 (fr) 2019-11-27
EP3483294B1 true EP3483294B1 (fr) 2022-02-16

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US (1) US20190184436A1 (fr)
EP (1) EP3483294B1 (fr)
JP (1) JP6421900B2 (fr)
KR (1) KR101984463B1 (fr)
CN (1) CN109642296B (fr)
PH (1) PH12019500064A1 (fr)
TW (1) TWI641701B (fr)
WO (1) WO2018043491A1 (fr)

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CN108642381B (zh) * 2018-05-16 2020-02-18 山东钢铁股份有限公司 一种屈服强度460MPa级热轧高韧性耐低温H型钢及其制备方法
CN110578090A (zh) * 2019-09-25 2019-12-17 马鞍山钢铁股份有限公司 一种屈服强度500MPa级热轧H型钢及生产方法
CN110527915B (zh) * 2019-09-25 2020-12-01 马鞍山钢铁股份有限公司 一种460MPa级热轧H型钢及其生产方法
CN110592479B (zh) * 2019-09-25 2020-12-01 马鞍山钢铁股份有限公司 一种热轧h型钢及其生产方法
CN110629112A (zh) * 2019-09-25 2019-12-31 马鞍山钢铁股份有限公司 一种屈服强度550MPa级热轧H型钢及生产方法
CN112458364B (zh) * 2020-11-04 2021-09-03 马鞍山钢铁股份有限公司 一种超厚规格热轧h型钢及其生产方法
CN112746221B (zh) * 2020-12-25 2021-10-15 钢铁研究总院 一种V-N微合金化550MPa热轧厚壁H型钢及其生产工艺
CN113234995B (zh) * 2021-04-14 2022-04-26 马鞍山钢铁股份有限公司 一种屈服强度600MPa级超厚热轧H型钢及其生产方法
CN113699441B (zh) * 2021-07-29 2022-10-04 马鞍山钢铁股份有限公司 一种低温冲击韧性良好的翼缘超厚热轧h型钢及其生产方法
CN115287555A (zh) * 2022-02-18 2022-11-04 唐山盛航环保机车制造有限公司 一种叉车属具用“s”钢及轧制工艺

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Publication number Publication date
TWI641701B (zh) 2018-11-21
EP3483294A1 (fr) 2019-05-15
JP6421900B2 (ja) 2018-11-14
KR20190029756A (ko) 2019-03-20
WO2018043491A1 (fr) 2018-03-08
CN109642296A (zh) 2019-04-16
JPWO2018043491A1 (ja) 2018-09-27
CN109642296B (zh) 2019-11-05
US20190184436A1 (en) 2019-06-20
TW201812047A (zh) 2018-04-01
EP3483294A4 (fr) 2019-11-27
PH12019500064A1 (en) 2019-11-04
KR101984463B1 (ko) 2019-05-30

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