MY194585A - Non-pickled hot-rolled steel sheet and method for manufacturing same - Google Patents

Non-pickled hot-rolled steel sheet and method for manufacturing same

Info

Publication number
MY194585A
MY194585A MYPI2019005040A MYPI2019005040A MY194585A MY 194585 A MY194585 A MY 194585A MY PI2019005040 A MYPI2019005040 A MY PI2019005040A MY PI2019005040 A MYPI2019005040 A MY PI2019005040A MY 194585 A MY194585 A MY 194585A
Authority
MY
Malaysia
Prior art keywords
scale
steel sheet
rolled steel
hot
pickled hot
Prior art date
Application number
MYPI2019005040A
Inventor
Taro Kizu
Takayoshi Jin
Akihiro Aoyagi
Masaaki Yamamoto
Original Assignee
Jfe 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 Jfe Steel Corp filed Critical Jfe Steel Corp
Publication of MY194585A publication Critical patent/MY194585A/en

Links

Classifications

    • 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
    • B21B1/22—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 plates, strips, bands or sheets of indefinite length
    • B21B1/24—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 plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
    • B21B1/26—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 plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
    • B21B45/06—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing of strip material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
    • B21B45/08—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing hydraulically
    • 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
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • 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
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Metal Rolling (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

Provided is a non-pickled hot-rolled steel sheet demonstrating sufficient blackness seen from any direction and excellent scale adhesion. The non-pickled hot-rolled steel sheet comprises a base hot-rolled steel sheet and scale on a surface of the base hot-rolled steel sheet, the scale consisting of Fe3Q4 and Fe and having a thickness of 3.0-20 ?m, wherein an average grain size on a surface layer of the scale comprises 3.0 ?m or less, an area ratio of Fe in a cross-section of the scale comprises less than 1.0 % in a region of 0-1.0 ?m in a thickness direction of the scale from an outermost surface layer of the scale, while 1.0 % or more in a region of 0-1.0 ?m in the thickness direction of the scale from an interface between the scale and the base hot-rolled steel sheet. (Figure 2)
MYPI2019005040A 2017-04-07 2018-03-28 Non-pickled hot-rolled steel sheet and method for manufacturing same MY194585A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017076527 2017-04-07
PCT/JP2018/012917 WO2018186265A1 (en) 2017-04-07 2018-03-28 Non-pickled hot-rolled steel sheet and method for manufacturing same

Publications (1)

Publication Number Publication Date
MY194585A true MY194585A (en) 2022-12-04

Family

ID=63712192

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2019005040A MY194585A (en) 2017-04-07 2018-03-28 Non-pickled hot-rolled steel sheet and method for manufacturing same

Country Status (7)

Country Link
JP (1) JP6406481B1 (en)
KR (1) KR102246956B1 (en)
CN (1) CN110461487B (en)
MY (1) MY194585A (en)
SG (1) SG11201907974TA (en)
WO (1) WO2018186265A1 (en)
ZA (1) ZA201906697B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020206298A1 (en) 2020-05-19 2021-11-25 Thyssenkrupp Steel Europe Ag Flat steel product and process for its manufacture
KR102488496B1 (en) * 2020-12-18 2023-01-13 주식회사 포스코 Steel sheet for seismic damper having superior toughness property and manufacturing method of the same
WO2024202399A1 (en) * 2023-03-28 2024-10-03 Ｊｆｅスチール株式会社 Hot-rolled steel sheet and method for producing same
KR20250150132A (en) * 2023-03-28 2025-10-17 제이에프이 스틸 가부시키가이샤 Hot-rolled steel sheet and its manufacturing method
JPWO2025134687A1 (en) * 2023-12-20 2025-06-26
WO2025134686A1 (en) * 2023-12-20 2025-06-26 Ｊｆｅスチール株式会社 Hot-rolled steel sheet and method for producing same

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0748622A (en) 1993-08-05 1995-02-21 Nippon Steel Corp Manufacturing method of scale control steel sheet
JPH0748623A (en) 1993-08-05 1995-02-21 Nippon Steel Corp Manufacturing method of steel sheet with good surface quality
JP3390584B2 (en) * 1995-08-31 2003-03-24 川崎製鉄株式会社 Hot rolled steel sheet and method for producing the same
JP4061996B2 (en) 2002-07-11 2008-03-19 Ｊｆｅスチール株式会社 Black skin hot-rolled steel sheet excellent in blackness and method for producing the same
CN101952471B (en) * 2008-02-22 2013-03-27 杰富意钢铁株式会社 Steel products and process for production thereof
KR101456772B1 (en) * 2010-05-27 2014-10-31 신닛테츠스미킨 카부시키카이샤 Steel sheet, and process for production thereof
JP5679112B2 (en) * 2011-02-08 2015-03-04 Ｊｆｅスチール株式会社 Hot rolled steel sheet with excellent scale adhesion and method for producing the same
KR101310798B1 (en) * 2011-06-29 2013-09-25 현대제철 주식회사 Method for producing of hot-rolled steel sheet having good scale adhesivity
JP5799913B2 (en) 2012-08-02 2015-10-28 新日鐵住金株式会社 Hot rolled steel sheet with excellent scale adhesion and method for producing the same

Also Published As

Publication number Publication date
WO2018186265A1 (en) 2018-10-11
CN110461487B (en) 2021-03-30
CN110461487A (en) 2019-11-15
JPWO2018186265A1 (en) 2019-04-11
SG11201907974TA (en) 2019-09-27
KR102246956B1 (en) 2021-04-29
KR20190132494A (en) 2019-11-27
ZA201906697B (en) 2021-01-27
JP6406481B1 (en) 2018-10-17

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