CN104619876B - 热轧钢板及其制造方法 - Google Patents

热轧钢板及其制造方法 Download PDF

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Publication number: CN104619876B
Authority: CN; China
Prior art keywords: steel plate; cooling; temperature; hot rolled; rolled steel
Prior art date: 2012-09-13
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.): Active

Application number

CN201380047480.0A

Other languages

English (en)

Chinese (zh)

Other versions

CN104619876A (zh

Inventor

上力

后藤聪太

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 Engineering Corp

Original Assignee

NKK 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.)

2012-09-13

Filing date

2013-09-11

Publication date

2016-12-21

2013-09-11 Application filed by NKK Corp filed Critical NKK Corp

2015-05-13 Publication of CN104619876A publication Critical patent/CN104619876A/zh

2016-12-21 Application granted granted Critical

2016-12-21 Publication of CN104619876B publication Critical patent/CN104619876B/zh

Status Active legal-status Critical Current

2033-09-11 Anticipated expiration legal-status Critical

Links

229910000831 Steel Inorganic materials 0.000 title claims abstract description 193
239000010959 steel Substances 0.000 title claims abstract description 193
238000000034 method Methods 0.000 title claims description 67
238000004519 manufacturing process Methods 0.000 title claims description 27
229910000734 martensite Inorganic materials 0.000 claims abstract description 92
229910001563 bainite Inorganic materials 0.000 claims abstract description 41
229910000859 α-Fe Inorganic materials 0.000 claims abstract description 35
239000000203 mixture Substances 0.000 claims abstract description 34
229910052748 manganese Inorganic materials 0.000 claims abstract description 12
229910052804 chromium Inorganic materials 0.000 claims abstract description 11
229910052750 molybdenum Inorganic materials 0.000 claims abstract description 11
229910052759 nickel Inorganic materials 0.000 claims abstract description 11
238000005496 tempering Methods 0.000 claims abstract description 10
229910052758 niobium Inorganic materials 0.000 claims abstract description 7
229910052710 silicon Inorganic materials 0.000 claims abstract description 7
238000001816 cooling Methods 0.000 claims description 167
238000005096 rolling process Methods 0.000 claims description 41
235000019628 coolness Nutrition 0.000 claims description 26
230000008569 process Effects 0.000 claims description 22
230000009467 reduction Effects 0.000 claims description 19
238000009825 accumulation Methods 0.000 claims description 13
238000010438 heat treatment Methods 0.000 claims description 8
239000012535 impurity Substances 0.000 claims description 7
229910052698 phosphorus Inorganic materials 0.000 claims description 3
239000002994 raw material Substances 0.000 abstract description 11
230000000694 effects Effects 0.000 description 27
238000012360 testing method Methods 0.000 description 21
230000009466 transformation Effects 0.000 description 19
229910001566 austenite Inorganic materials 0.000 description 14
238000005516 engineering process Methods 0.000 description 13
238000005098 hot rolling Methods 0.000 description 11
239000002245 particle Substances 0.000 description 11
238000010791 quenching Methods 0.000 description 11
230000000171 quenching effect Effects 0.000 description 11
230000007704 transition Effects 0.000 description 9
230000005611 electricity Effects 0.000 description 7
XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
239000006104 solid solution Substances 0.000 description 7
229910001568 polygonal ferrite Inorganic materials 0.000 description 6
238000009835 boiling Methods 0.000 description 5
238000009826 distribution Methods 0.000 description 5
238000001556 precipitation Methods 0.000 description 5
238000005275 alloying Methods 0.000 description 4
239000013078 crystal Substances 0.000 description 4
239000000463 material Substances 0.000 description 4
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 3
230000033228 biological regulation Effects 0.000 description 3
239000006185 dispersion Substances 0.000 description 3
238000012545 processing Methods 0.000 description 3
230000035939 shock Effects 0.000 description 3
238000010583 slow cooling Methods 0.000 description 3
239000000243 solution Substances 0.000 description 3
230000006641 stabilisation Effects 0.000 description 3
238000012546 transfer Methods 0.000 description 3
238000003723 Smelting Methods 0.000 description 2
230000008859 change Effects 0.000 description 2
150000001875 compounds Chemical class 0.000 description 2
238000009749 continuous casting Methods 0.000 description 2
229910052802 copper Inorganic materials 0.000 description 2
239000010779 crude oil Substances 0.000 description 2
238000009863 impact test Methods 0.000 description 2
239000002184 metal Substances 0.000 description 2
229910052751 metal Inorganic materials 0.000 description 2
VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
150000004767 nitrides Chemical class 0.000 description 2
238000001953 recrystallisation Methods 0.000 description 2
238000007670 refining Methods 0.000 description 2
235000015170 shellfish Nutrition 0.000 description 2
238000005728 strengthening Methods 0.000 description 2
230000035882 stress Effects 0.000 description 2
229910052720 vanadium Inorganic materials 0.000 description 2
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
238000010521 absorption reaction Methods 0.000 description 1
239000008186 active pharmaceutical agent Substances 0.000 description 1
230000032683 aging Effects 0.000 description 1
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
238000005452 bending Methods 0.000 description 1
230000015572 biosynthetic process Effects 0.000 description 1
230000036760 body temperature Effects 0.000 description 1
229910052796 boron Inorganic materials 0.000 description 1
238000004364 calculation method Methods 0.000 description 1
229910052799 carbon Inorganic materials 0.000 description 1
229910001567 cementite Inorganic materials 0.000 description 1
230000000052 comparative effect Effects 0.000 description 1
230000006835 compression Effects 0.000 description 1
238000007906 compression Methods 0.000 description 1
238000010276 construction Methods 0.000 description 1
239000000498 cooling water Substances 0.000 description 1
230000007797 corrosion Effects 0.000 description 1
238000005260 corrosion Methods 0.000 description 1
230000007547 defect Effects 0.000 description 1
230000007812 deficiency Effects 0.000 description 1
238000010586 diagram Methods 0.000 description 1
235000013399 edible fruits Nutrition 0.000 description 1
HQFCOGRKGVGYBB-UHFFFAOYSA-N ethanol;nitric acid Chemical compound CCO.O[N+]([O-])=O HQFCOGRKGVGYBB-UHFFFAOYSA-N 0.000 description 1
229910052840 fayalite Inorganic materials 0.000 description 1
239000007789 gas Substances 0.000 description 1
238000007542 hardness measurement Methods 0.000 description 1
238000000265 homogenisation Methods 0.000 description 1
238000010191 image analysis Methods 0.000 description 1
238000009413 insulation Methods 0.000 description 1
229910052742 iron Inorganic materials 0.000 description 1
KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 description 1
238000003754 machining Methods 0.000 description 1
238000002844 melting Methods 0.000 description 1
230000008018 melting Effects 0.000 description 1
238000000465 moulding Methods 0.000 description 1
239000003345 natural gas Substances 0.000 description 1
238000006396 nitration reaction Methods 0.000 description 1
229910052757 nitrogen Inorganic materials 0.000 description 1
239000003129 oil well Substances 0.000 description 1
230000003287 optical effect Effects 0.000 description 1
229910052760 oxygen Inorganic materials 0.000 description 1
239000001301 oxygen Substances 0.000 description 1
235000019362 perlite Nutrition 0.000 description 1
239000010451 perlite Substances 0.000 description 1
238000012797 qualification Methods 0.000 description 1
238000011160 research Methods 0.000 description 1
230000000717 retained effect Effects 0.000 description 1
230000000630 rising effect Effects 0.000 description 1
229920006395 saturated elastomer Polymers 0.000 description 1
238000005204 segregation Methods 0.000 description 1
238000011105 stabilization Methods 0.000 description 1
238000005482 strain hardening Methods 0.000 description 1
230000001629 suppression Effects 0.000 description 1
238000010998 test method Methods 0.000 description 1
238000003466 welding Methods 0.000 description 1
238000004804 winding Methods 0.000 description 1

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B3/02—Rolling special iron alloys, e.g. stainless 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
- 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
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- 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
- C21D8/0263—Modifying the physical properties 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 by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1216—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the working step(s) being of interest
- C21D8/1222—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
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
- C21D8/1261—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest 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
- 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
- C22C38/001—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
- C22C38/02—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
- C22C38/42—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
- C22C38/44—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
- C22C38/54—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
- 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
- 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
- C21D2211/008—Martensite

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)
Electromagnetism (AREA)
Manufacturing & Machinery (AREA)
Heat Treatment Of Steel (AREA)

CN201380047480.0A 2012-09-13 2013-09-11 热轧钢板及其制造方法 Active CN104619876B (zh)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
JP2012-201266		2012-09-13
JP2012201266		2012-09-13
PCT/JP2013/005388 WO2014041802A1 (ja)	2012-09-13	2013-09-11	熱延鋼板およびその製造方法

Publications (2)

Publication Number	Publication Date
CN104619876A CN104619876A (zh)	2015-05-13
CN104619876B true CN104619876B (zh)	2016-12-21

Family

ID=50277943

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CN201380047480.0A Active CN104619876B (zh)	2012-09-13	2013-09-11	热轧钢板及其制造方法

Country Status (7)

Country	Link
US (1)	US20150232970A1 (ja)
EP (1)	EP2871254B1 (ja)
JP (1)	JP5605527B2 (ja)
KR (1)	KR101702794B1 (ja)
CN (1)	CN104619876B (ja)
IN (1)	IN2015DN00772A (ja)
WO (1)	WO2014041802A1 (ja)

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* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN104619877B (zh) *	2012-09-13	2017-06-09	杰富意钢铁株式会社	热轧钢板及其制造方法
JP2018532045A (ja) *	2015-09-22	2018-11-01	タタ、スティール、アイモイデン、ベスローテン、フェンノートシャップＴａｔａＳｔｅｅｌＩｊｍｕｉｄｅｎＢｖ	優れた伸びフランジ成形性を有するロール成形可能な高強度熱間圧延鋼板、および該鋼の製造方法
EP3409803B1 (en) *	2016-01-27	2020-09-16	JFE Steel Corporation	High-strength hot-rolled steel sheet for electric resistance welded steel pipe and manufacturing method therefor
KR101830437B1 (ko) *	2016-04-25	2018-02-20	현대자동차주식회사	3층 구조를 갖는 고인성 열처리 강관 및 이의 제조방법
JP6624103B2 (ja) *	2017-02-06	2019-12-25	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
KR102258320B1 (ko) *	2017-02-17	2021-05-28	제이에프이 스틸 가부시키가이샤	고강도 열연 강판 및 그의 제조 방법
TWI655299B (zh) *	2017-04-28	2019-04-01	日商新日鐵住金股份有限公司	High-strength steel plate and manufacturing method thereof
KR101999015B1 (ko)	2017-12-24	2019-07-10	주식회사 포스코	취성균열 전파 저항성이 우수한 구조용 강재 및 그 제조방법
KR102031450B1 (ko) *	2017-12-24	2019-10-11	주식회사 포스코	고강도 강판 및 그 제조방법
KR102200224B1 (ko) *	2018-12-19	2021-01-08	주식회사 포스코	취성파괴 저항성이 우수한 구조용 강재 및 그 제조방법
KR102555312B1 (ko) *	2019-03-29	2023-07-12	제이에프이 스틸 가부시키가이샤	전봉 강관 및 그의 제조 방법, 그리고 강관 말뚝
CN114761595B (zh) *	2019-11-27	2023-08-01	杰富意钢铁株式会社	钢板及其制造方法
WO2021123877A1 (en) *	2019-12-17	2021-06-24	Arcelormittal	Hot rolled steel sheet and method of manufacturing thereof
WO2021125386A1 (ko) *	2019-12-18	2021-06-24	주식회사 포스코	타발성 및 재질 균일성이 우수한 고강도 열연강판 및 그 제조방법
CN114107612B (zh) *	2021-11-30	2023-04-18	马鞍山钢铁股份有限公司	H型钢回火热处理设计方法、抗震耐火建筑结构用热轧h型钢及其回火热处理方法
WO2023162522A1 (ja) *	2022-02-24	2023-08-31	Ｊｆｅスチール株式会社	鋼板およびその製造方法

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JPWO2014041802A1 (ja)	2016-08-12
JP5605527B2 (ja)	2014-10-15
IN2015DN00772A (ja)	2015-07-03
EP2871254A1 (en)	2015-05-13
US20150232970A1 (en)	2015-08-20
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