EP4036266A4 - STEEL FOR ALLOY STRUCTURE AND METHOD FOR ITS PRODUCTION - Google Patents

STEEL FOR ALLOY STRUCTURE AND METHOD FOR ITS PRODUCTION Download PDF

Info

Publication number: EP4036266A4
Authority: EP; European Patent Office
Prior art keywords: steel; manufacturing; method therefor; alloy structure; alloy
Prior art date: 2019-09-27
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

EP20869967.8A

Other languages

German (de)

English (en)

French (fr)

Other versions

EP4036266A1 (en

Inventor

Hongguang ZHENG

Xiangchun LIU

Junjiang LIU

Ruiyin ZHAI

Genjie WAN

Yangqing XIA

Qingyu Meng

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.)

Baoshan Iron and Steel Co Ltd

Original Assignee

Baoshan 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.)

2019-09-27

Filing date

2020-09-27

Publication date

2023-06-14

2020-09-27 Application filed by Baoshan Iron and Steel Co Ltd filed Critical Baoshan Iron and Steel Co Ltd

2022-08-03 Publication of EP4036266A1 publication Critical patent/EP4036266A1/en

2023-06-14 Publication of EP4036266A4 publication Critical patent/EP4036266A4/en

Status 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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/58—Oils
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/60—Aqueous agents
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/02—Hardening by precipitation
- 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
- 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
- C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
- 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
- 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
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- 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
- 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
- C22C38/04—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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
- 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
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
- 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
- C21D2211/004—Dispersions; Precipitations
- 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

Landscapes

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)
Oil, Petroleum & Natural Gas (AREA)
Heat Treatment Of Steel (AREA)

EP20869967.8A 2019-09-27 2020-09-27 STEEL FOR ALLOY STRUCTURE AND METHOD FOR ITS PRODUCTION Pending EP4036266A4 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
CN201910920640.7A CN112575242B (zh)	2019-09-27	2019-09-27	一种合金结构用钢及其制造方法
PCT/CN2020/118043 WO2021057954A1 (zh)	2019-09-27	2020-09-27	一种合金结构用钢及其制造方法

Publications (2)

Publication Number	Publication Date
EP4036266A1 EP4036266A1 (en)	2022-08-03
EP4036266A4 true EP4036266A4 (en)	2023-06-14

Family

ID=75109576

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP20869967.8A Pending EP4036266A4 (en)	2019-09-27	2020-09-27	STEEL FOR ALLOY STRUCTURE AND METHOD FOR ITS PRODUCTION

Country Status (6)

Country	Link
US (1)	US20220349035A1 (ja)
EP (1)	EP4036266A4 (ja)
JP (1)	JP7443502B2 (ja)
KR (1)	KR20220054862A (ja)
CN (1)	CN112575242B (ja)
WO (1)	WO2021057954A1 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN115874109B (zh) *	2021-09-29	2024-07-12	宝山钢铁股份有限公司	一种合金冷镦钢及其制造方法
CN113957338A (zh) *	2021-10-09	2022-01-21	南京钢铁股份有限公司	一种含镁45钢及其制备工艺

Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SU521343A1 (ru) *	1974-11-25	1976-07-15	Институт Проблем Литья Ан Украинской Сср	Литейна сталь
JPH07138697A (ja) *	1993-11-12	1995-05-30	Nippon Steel Corp	疲労強度、冷間加工性の優れた亜共析黒鉛析出鋼
JP2003147482A (ja) *	2001-11-14	2003-05-21	Nippon Steel Corp	非調質高強度・高靭性鍛造品およびその製造方法
US20090047169A1 (en) *	2006-03-15	2009-02-19	Kab. Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)	Rolled material for fracture split connecting rod excelling in fracture splittability, hot forged part for fracture split connecting rod excelling in fracture splittability, and fracture split connecting rod
CN104178691A (zh) *	2014-08-22	2014-12-03	首钢总公司	一种高强度冶金锯片用钢及其热处理方法
CN105803308A (zh) *	2016-03-19	2016-07-27	上海大学	一种含镁钙的45MnVS易切削非调质钢及其制造方法

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Publication number	Priority date	Publication date	Assignee	Title
JPS58164721A (ja) *	1982-03-24	1983-09-29	Kobe Steel Ltd	高靭性高強度構造用鋼の製造法
JPS6123715A (ja) *	1984-07-10	1986-02-01	Nippon Steel Corp	高張力高靭性鋼板の製造法
GB2287956B (en) *	1994-03-31	1998-02-04	Daewoo Heavy Ind Co Ltd	Thermal refiningless hot-rolled steel and method of making same
JP2000219936A (ja) *	1999-02-01	2000-08-08	Daido Steel Co Ltd	快削鋼
JP4031607B2 (ja)	2000-04-05	2008-01-09	新日本製鐵株式会社	結晶粒の粗大化を抑制した機械構造用鋼
JP2007314819A (ja) *	2006-05-23	2007-12-06	Kobe Steel Ltd	耐疲労亀裂進展性に優れた鋼板
AU2008320179B2 (en)	2007-10-30	2011-10-13	Nippon Steel Corporation	Steel pipe with excellent expandability and method for producing the same
JP5892147B2 (ja)	2013-03-29	2016-03-23	Ｊｆｅスチール株式会社	高強度熱延鋼板およびその製造方法
US20170306434A1 (en)	2014-10-16	2017-10-26	Nippon Steel & Sumitomo Metal Corporation	High-carbon steel sheet and method of manufacturing the same
CN107109561B (zh) *	2014-11-18	2018-12-21	杰富意钢铁株式会社	材质均匀性优良的厚壁高韧性高张力钢板及其制造方法
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JP6855678B2 (ja) *	2016-02-18	2021-04-07	日本製鉄株式会社	鋼板の製造方法
WO2017164346A1 (ja) *	2016-03-25	2017-09-28	新日鐵住金株式会社	高強度鋼板および高強度亜鉛めっき鋼板
JP6597901B2 (ja) *	2016-07-11	2019-10-30	日本製鉄株式会社	耐応力腐食割れ性に優れたボイラー用電縫鋼管及びその製造方法
JP6648646B2 (ja)	2016-07-20	2020-02-14	日本製鉄株式会社	低合金鋼材、低合金鋼管および容器、ならびにその容器の製造方法
CN106834931B (zh)	2017-03-28	2019-05-14	宁波禾顺新材料有限公司	一种抗热疲劳的热作模具钢及其制备方法
CN107312908A (zh) *	2017-07-06	2017-11-03	北京科技大学	一种非调质钢中改善MnS夹杂物形态的冶金方法

2019
- 2019-09-27 CN CN201910920640.7A patent/CN112575242B/zh active Active
2020
- 2020-09-27 WO PCT/CN2020/118043 patent/WO2021057954A1/zh active Application Filing
- 2020-09-27 US US17/763,348 patent/US20220349035A1/en active Pending
- 2020-09-27 KR KR1020227010806A patent/KR20220054862A/ko not_active Application Discontinuation
- 2020-09-27 JP JP2022519356A patent/JP7443502B2/ja active Active
- 2020-09-27 EP EP20869967.8A patent/EP4036266A4/en active Pending

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SU521343A1 (ru) *	1974-11-25	1976-07-15	Институт Проблем Литья Ан Украинской Сср	Литейна сталь
JPH07138697A (ja) *	1993-11-12	1995-05-30	Nippon Steel Corp	疲労強度、冷間加工性の優れた亜共析黒鉛析出鋼
JP2003147482A (ja) *	2001-11-14	2003-05-21	Nippon Steel Corp	非調質高強度・高靭性鍛造品およびその製造方法
US20090047169A1 (en) *	2006-03-15	2009-02-19	Kab. Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)	Rolled material for fracture split connecting rod excelling in fracture splittability, hot forged part for fracture split connecting rod excelling in fracture splittability, and fracture split connecting rod
CN104178691A (zh) *	2014-08-22	2014-12-03	首钢总公司	一种高强度冶金锯片用钢及其热处理方法
CN105803308A (zh) *	2016-03-19	2016-07-27	上海大学	一种含镁钙的45MnVS易切削非调质钢及其制造方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2021057954A1 *

Also Published As

Publication number	Publication date
JP2022550358A (ja)	2022-12-01
WO2021057954A1 (zh)	2021-04-01
JP7443502B2 (ja)	2024-03-05
CN112575242A (zh)	2021-03-30
EP4036266A1 (en)	2022-08-03
KR20220054862A (ko)	2022-05-03
CN112575242B (zh)	2022-06-24
WO2021057954A9 (zh)	2022-04-14
US20220349035A1 (en)	2022-11-03

Legal Events

Date	Code	Title	Description
2021-04-03	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE
2022-07-01	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
2022-07-01	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE
2022-08-03	17P	Request for examination filed	Effective date: 20220328
2022-08-03	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
2023-01-04	DAV	Request for validation of the european patent (deleted)
2023-01-04	DAX	Request for extension of the european patent (deleted)
2023-06-14	A4	Supplementary search report drawn up and despatched	Effective date: 20230517
2023-06-14	RIC1	Information provided on ipc code assigned before grant	Ipc: C21D 1/60 20060101ALI20230511BHEP Ipc: C21D 1/58 20060101ALI20230511BHEP Ipc: C21D 1/18 20060101ALI20230511BHEP Ipc: C21D 6/02 20060101ALI20230511BHEP Ipc: C21D 6/00 20060101ALI20230511BHEP Ipc: C21D 8/00 20060101ALI20230511BHEP Ipc: C22C 38/00 20060101ALI20230511BHEP Ipc: C22C 38/06 20060101ALI20230511BHEP Ipc: C22C 38/14 20060101ALI20230511BHEP Ipc: C22C 38/12 20060101ALI20230511BHEP Ipc: C22C 38/02 20060101ALI20230511BHEP Ipc: C22C 38/04 20060101AFI20230511BHEP

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