JP7571918B1 - 角形鋼管およびその製造方法ならびに建築構造物 - Google Patents

角形鋼管およびその製造方法ならびに建築構造物 Download PDF

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Publication number
JP7571918B1
JP7571918B1 JP2024527396A JP2024527396A JP7571918B1 JP 7571918 B1 JP7571918 B1 JP 7571918B1 JP 2024527396 A JP2024527396 A JP 2024527396A JP 2024527396 A JP2024527396 A JP 2024527396A JP 7571918 B1 JP7571918 B1 JP 7571918B1
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Japan
Prior art keywords
less
pearlite
steel pipe
steel
temperature
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JP2024527396A
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English (en)
Japanese (ja)
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JPWO2025004445A1 (https=
Inventor
直道 岩田
晃英 松本
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.)
JFE Steel Corp
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JFE Steel Corp
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Priority claimed from PCT/JP2024/006688 external-priority patent/WO2025004445A1/ja
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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
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams
    • B21C37/0803—Making tubes with welded or soldered seams the tubes having a special shape, e.g. polygonal tubes
    • 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties of ferrous metals or ferrous alloys 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
    • 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0263—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
    • 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/10—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/002—Bainite
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/005—Ferrite
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/009—Pearlite

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials 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)
JP2024527396A 2023-06-29 2024-02-26 角形鋼管およびその製造方法ならびに建築構造物 Active JP7571918B1 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2023107345 2023-06-29
JP2023107345 2023-06-29
PCT/JP2024/006688 WO2025004445A1 (ja) 2023-06-29 2024-02-26 角形鋼管およびその製造方法ならびに建築構造物

Publications (2)

Publication Number Publication Date
JP7571918B1 true JP7571918B1 (ja) 2024-10-23
JPWO2025004445A1 JPWO2025004445A1 (https=) 2025-01-02

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JP2024527396A Active JP7571918B1 (ja) 2023-06-29 2024-02-26 角形鋼管およびその製造方法ならびに建築構造物

Country Status (3)

Country Link
JP (1) JP7571918B1 (https=)
KR (1) KR20260003330A (https=)
CN (1) CN121263544A (https=)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008184686A (ja) * 2007-01-31 2008-08-14 Jfe Steel Kk 建築用低ｙｒ角鋼管の製造方法
JP2018053281A (ja) * 2016-09-27 2018-04-05 新日鐵住金株式会社 角形鋼管
WO2018110152A1 (ja) * 2016-12-12 2018-06-21 Ｊｆｅスチール株式会社 低降伏比角形鋼管用熱延鋼板およびその製造方法並びに低降伏比角形鋼管およびその製造方法
WO2022075026A1 (ja) * 2020-10-05 2022-04-14 Ｊｆｅスチール株式会社 角形鋼管およびその製造方法並びに建築構造物
WO2023053837A1 (ja) * 2021-09-29 2023-04-06 Ｊｆｅスチール株式会社 角形鋼管およびその製造方法、熱延鋼板およびその製造方法、並びに建築構造物
WO2023233980A1 (ja) * 2022-06-03 2023-12-07 Ｊｆｅスチール株式会社 熱延鋼板、角形鋼管、それらの製造方法および建築構造物
JP7396552B1 (ja) * 2022-09-20 2023-12-12 Ｊｆｅスチール株式会社 熱延鋼板、角形鋼管およびそれらの製造方法並びに建築構造物

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0987743A (ja) 1995-09-27 1997-03-31 Kawasaki Steel Corp 低降伏比高靱性電縫角形鋼管の製造方法
JP5589885B2 (ja) 2010-11-30 2014-09-17 Ｊｆｅスチール株式会社 建築構造部材向け角形鋼管用厚肉熱延鋼板およびその製造方法
JP5594165B2 (ja) 2011-01-28 2014-09-24 Ｊｆｅスチール株式会社 建築構造部材向け角形鋼管用厚肉熱延鋼板の製造方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008184686A (ja) * 2007-01-31 2008-08-14 Jfe Steel Kk 建築用低ｙｒ角鋼管の製造方法
JP2018053281A (ja) * 2016-09-27 2018-04-05 新日鐵住金株式会社 角形鋼管
WO2018110152A1 (ja) * 2016-12-12 2018-06-21 Ｊｆｅスチール株式会社 低降伏比角形鋼管用熱延鋼板およびその製造方法並びに低降伏比角形鋼管およびその製造方法
WO2022075026A1 (ja) * 2020-10-05 2022-04-14 Ｊｆｅスチール株式会社 角形鋼管およびその製造方法並びに建築構造物
WO2023053837A1 (ja) * 2021-09-29 2023-04-06 Ｊｆｅスチール株式会社 角形鋼管およびその製造方法、熱延鋼板およびその製造方法、並びに建築構造物
WO2023233980A1 (ja) * 2022-06-03 2023-12-07 Ｊｆｅスチール株式会社 熱延鋼板、角形鋼管、それらの製造方法および建築構造物
JP7396552B1 (ja) * 2022-09-20 2023-12-12 Ｊｆｅスチール株式会社 熱延鋼板、角形鋼管およびそれらの製造方法並びに建築構造物

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KR20260003330A (ko) 2026-01-06
JPWO2025004445A1 (https=) 2025-01-02
CN121263544A (zh) 2026-01-02

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