EP4015666A4 - Method for producing multi-stage structural steel blank for one steel - Google Patents

Method for producing multi-stage structural steel blank for one steel Download PDF

Info

Publication number
EP4015666A4
EP4015666A4 EP20863199.4A EP20863199A EP4015666A4 EP 4015666 A4 EP4015666 A4 EP 4015666A4 EP 20863199 A EP20863199 A EP 20863199A EP 4015666 A4 EP4015666 A4 EP 4015666A4
Authority
EP
European Patent Office
Prior art keywords
steel
producing multi
stage structural
blank
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
EP20863199.4A
Other languages
German (de)
French (fr)
Other versions
EP4015666A1 (en
Inventor
DongYu ZHAI
Jun Hong
Junping Wu
Lei Fang
JinXing JIANG
HaiJun DU
Shuai LIU
Fei Chen
Ruying LIU
Chenchen Zhang
Shengping YAN
Ye Ding
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.)
Nanjing Iron and Steel Co Ltd
Original Assignee
Nanjing Iron and Steel Co Ltd
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 Nanjing Iron and Steel Co Ltd filed Critical Nanjing Iron and Steel Co Ltd
Publication of EP4015666A1 publication Critical patent/EP4015666A1/en
Publication of EP4015666A4 publication Critical patent/EP4015666A4/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/02—Dephosphorising or desulfurising
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/10—Handling in a vacuum
    • 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
    • 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
    • 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
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/04—Making ferrous alloys by melting
    • 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
    • C22C38/18—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
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Steel (AREA)
EP20863199.4A 2019-09-10 2020-07-22 Method for producing multi-stage structural steel blank for one steel Pending EP4015666A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910850212.1A CN110656285A (en) 2019-09-10 2019-09-10 Production method of steel blank with one-steel multi-stage structure
PCT/CN2020/103544 WO2021047295A1 (en) 2019-09-10 2020-07-22 Method for producing multi-stage structural steel blank for one steel

Publications (2)

Publication Number Publication Date
EP4015666A1 EP4015666A1 (en) 2022-06-22
EP4015666A4 true EP4015666A4 (en) 2022-10-19

Family

ID=69036832

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20863199.4A Pending EP4015666A4 (en) 2019-09-10 2020-07-22 Method for producing multi-stage structural steel blank for one steel

Country Status (3)

Country Link
EP (1) EP4015666A4 (en)
CN (1) CN110656285A (en)
WO (1) WO2021047295A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110656285A (en) * 2019-09-10 2020-01-07 南京钢铁股份有限公司 Production method of steel blank with one-steel multi-stage structure
CN112795834B (en) * 2020-11-19 2021-12-03 唐山钢铁集团有限责任公司 Production method of medium-carbon, medium-silicon and high-aluminum dual-phase steel continuous casting billet
CN113528939A (en) * 2021-06-10 2021-10-22 江苏利淮钢铁有限公司 Steel for tie rod joint in high-performance automobile steering system
CN114369753B (en) * 2022-01-07 2023-03-03 鞍钢股份有限公司 Method for producing multi-strength-level alloy structural steel based on flexible rolling technology

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108531816A (en) * 2018-05-24 2018-09-14 南京钢铁股份有限公司 A kind of 500MPa grades of steel for engineering machinery and its manufacturing method

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000001752A (en) * 1998-06-17 2000-01-07 Nippon Steel Corp Welded joint excellent in corrosion resistance and fatigue strength
CN1586750A (en) * 2004-08-20 2005-03-02 钢铁研究总院 Rolling method for low carbon twisted steel bar
CN101419139B (en) * 2008-05-06 2010-12-01 首钢总公司 Method for preventing steel plate special for flaw detection from generating hydrogen induced cracking
JP5597006B2 (en) * 2010-03-26 2014-10-01 新日鐵住金ステンレス株式会社 High strength and high ductility austenitic stainless steel sheet for structural members and method for producing the same
CN102676947B (en) * 2012-05-17 2014-05-14 莱芜钢铁集团有限公司 Welded structural steel and manufacturing method thereof
CN103589954B (en) * 2013-11-29 2015-07-15 东北大学 Hot rolling steel plate with characteristic of multiple grades in one steel, and manufacturing method thereof
CN104328356A (en) * 2014-09-29 2015-02-04 南京钢铁股份有限公司 Manufacturing method of thin-specification high-strength-structure steel plate with steckel mill
CN106929758B (en) * 2017-03-03 2018-06-19 唐山钢铁集团有限责任公司 One steel multistage cold rolling low-alloy high-strength steel band and its production method
CN107012307A (en) * 2017-04-07 2017-08-04 荆楚理工学院 A kind of multipotency Plate Production method that can be used as multiple classification steel plates
CN107385324B (en) * 2017-06-08 2019-02-12 江阴兴澄特种钢铁有限公司 A kind of big thickness Q500GJCD high-strength building structural steel plate and its manufacturing method
CN109778069B (en) * 2019-03-29 2021-03-30 武汉钢铁有限公司 One-steel multi-stage cold-rolled low-alloy high-strength steel with yield strength covering 240-270 Mpa and manufacturing method thereof
CN110656274A (en) * 2019-09-10 2020-01-07 南京钢铁股份有限公司 Production method of one-steel multi-stage ship plate blank
CN110656285A (en) * 2019-09-10 2020-01-07 南京钢铁股份有限公司 Production method of steel blank with one-steel multi-stage structure
CN110656284A (en) * 2019-09-10 2020-01-07 南京钢铁股份有限公司 One-steel multi-stage blank production method
CN110656275A (en) * 2019-09-10 2020-01-07 南京钢铁股份有限公司 Production method of steel blank of low-temperature container for one-steel multi-stage use
CN110735079A (en) * 2019-10-10 2020-01-31 南京钢铁股份有限公司 Production method of multi-grade steel high-strength steel blank
CN110735080A (en) * 2019-10-10 2020-01-31 南京钢铁股份有限公司 Production method of steel multi-stage special container steel blank

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108531816A (en) * 2018-05-24 2018-09-14 南京钢铁股份有限公司 A kind of 500MPa grades of steel for engineering machinery and its manufacturing method

Also Published As

Publication number Publication date
WO2021047295A1 (en) 2021-03-18
CN110656285A (en) 2020-01-07
EP4015666A1 (en) 2022-06-22

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