EP3556885A4 - High-strength wire rod having superior impact toughness and manufacturing method therefor - Google Patents
High-strength wire rod having superior impact toughness and manufacturing method therefor Download PDFInfo
- Publication number
- EP3556885A4 EP3556885A4 EP17881235.0A EP17881235A EP3556885A4 EP 3556885 A4 EP3556885 A4 EP 3556885A4 EP 17881235 A EP17881235 A EP 17881235A EP 3556885 A4 EP3556885 A4 EP 3556885A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- manufacturing
- wire rod
- method therefor
- impact toughness
- strength wire
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/525—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length for wire, for rods
-
- 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
- C21D1/26—Methods of annealing
- C21D1/28—Normalising
-
- 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
- C21D6/001—Heat treatment of ferrous alloys containing 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
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/13—Modifying the physical properties of iron or steel by deformation by hot working
-
- 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
- C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
-
- 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
- C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
- C21D8/065—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/573—Continuous furnaces for strip or wire with cooling
- C21D9/5732—Continuous furnaces for strip or wire with cooling of wires; of rods
-
- 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
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/573—Continuous furnaces for strip or wire with cooling
- C21D9/5735—Details
-
- 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
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- 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
- C21D2211/001—Austenite
-
- 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
- C21D2211/008—Martensite
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Heat Treatment Of Steel (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020160169308A KR101879068B1 (en) | 2016-12-13 | 2016-12-13 | High strength wire rod having excellent impact toughness and method for manufacturing the same |
PCT/KR2017/013391 WO2018110850A1 (en) | 2016-12-13 | 2017-11-23 | High-strength wire rod having superior impact toughness and manufacturing method therefor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3556885A1 EP3556885A1 (en) | 2019-10-23 |
EP3556885A4 true EP3556885A4 (en) | 2019-10-30 |
Family
ID=62558832
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17881235.0A Withdrawn EP3556885A4 (en) | 2016-12-13 | 2017-11-23 | High-strength wire rod having superior impact toughness and manufacturing method therefor |
Country Status (6)
Country | Link |
---|---|
US (1) | US20200071792A1 (en) |
EP (1) | EP3556885A4 (en) |
JP (1) | JP6806905B2 (en) |
KR (1) | KR101879068B1 (en) |
CN (1) | CN110062813B (en) |
WO (1) | WO2018110850A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102218441B1 (en) * | 2019-10-08 | 2021-02-19 | 주식회사 포스코 | High strength wire rod having non-magnetic property and method for manufacturing thereof |
KR102321317B1 (en) * | 2019-10-16 | 2021-11-02 | 주식회사 포스코 | Wire rod for welding rod nd method for manufacturing thereof |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005054250A (en) * | 2003-08-06 | 2005-03-03 | Kobe Steel Ltd | High tensile strength steel sheet having excellent base metal toughness and haz toughness |
US20140290807A1 (en) * | 2011-02-24 | 2014-10-02 | Jfe Steel Corporation | Low-yield-ratio high-strength hot-rolled steel plate with excellent low-temperature toughness and process for producing same |
WO2016072679A1 (en) * | 2014-11-03 | 2016-05-12 | 주식회사 포스코 | Wire rod having enhanced strength and impact toughness and preparation method for same |
KR20160053776A (en) * | 2014-11-03 | 2016-05-13 | 주식회사 포스코 | Steel wire rod having high strength and impact toughness, and method for manufacturing thereof |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61124524A (en) * | 1984-11-22 | 1986-06-12 | Sumitomo Metal Ind Ltd | Manufacture of bar steel for steel reinforced concrete |
JPS62287012A (en) * | 1986-06-03 | 1987-12-12 | Kobe Steel Ltd | Production of low-temperature reinforcing bar having excellent weldability |
KR100891866B1 (en) * | 2002-12-20 | 2009-04-08 | 주식회사 포스코 | Method of manufacturing high Si added medium carbon wire rod |
JP5176271B2 (en) * | 2005-03-22 | 2013-04-03 | 新日鐵住金株式会社 | Method for producing high-strength steel sheet for line pipe with tensile strength of 760 MPa or higher with suppressed increase in yield strength after heating by coating treatment, and method for producing high-strength steel pipe for line pipe using the same |
JP5034290B2 (en) * | 2006-03-28 | 2012-09-26 | Jfeスチール株式会社 | Low yield ratio high strength thick steel plate and method for producing the same |
KR101542676B1 (en) * | 2011-04-13 | 2015-08-06 | 신닛테츠스미킨 카부시키카이샤 | High-strength cold-rolled steel sheet with excellent local formability, and manufacturing method therefor |
EP2735622B1 (en) * | 2011-07-20 | 2019-09-04 | JFE Steel Corporation | Low-yield-ratio high-strength hot-rolled steel plate with excellent low-temperature toughness and process for producing same |
CN103060678B (en) * | 2012-12-25 | 2016-04-27 | 钢铁研究总院 | A kind of warm-working nanometer austenite strengthens plasticising steel and preparation method thereof |
-
2016
- 2016-12-13 KR KR1020160169308A patent/KR101879068B1/en active IP Right Grant
-
2017
- 2017-11-23 EP EP17881235.0A patent/EP3556885A4/en not_active Withdrawn
- 2017-11-23 US US16/468,115 patent/US20200071792A1/en not_active Abandoned
- 2017-11-23 WO PCT/KR2017/013391 patent/WO2018110850A1/en unknown
- 2017-11-23 JP JP2019531080A patent/JP6806905B2/en active Active
- 2017-11-23 CN CN201780076488.8A patent/CN110062813B/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005054250A (en) * | 2003-08-06 | 2005-03-03 | Kobe Steel Ltd | High tensile strength steel sheet having excellent base metal toughness and haz toughness |
US20140290807A1 (en) * | 2011-02-24 | 2014-10-02 | Jfe Steel Corporation | Low-yield-ratio high-strength hot-rolled steel plate with excellent low-temperature toughness and process for producing same |
WO2016072679A1 (en) * | 2014-11-03 | 2016-05-12 | 주식회사 포스코 | Wire rod having enhanced strength and impact toughness and preparation method for same |
KR20160053776A (en) * | 2014-11-03 | 2016-05-13 | 주식회사 포스코 | Steel wire rod having high strength and impact toughness, and method for manufacturing thereof |
Non-Patent Citations (1)
Title |
---|
See also references of WO2018110850A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2018110850A1 (en) | 2018-06-21 |
JP2020509169A (en) | 2020-03-26 |
CN110062813A (en) | 2019-07-26 |
KR20180067894A (en) | 2018-06-21 |
JP6806905B2 (en) | 2021-01-06 |
EP3556885A1 (en) | 2019-10-23 |
CN110062813B (en) | 2021-05-04 |
US20200071792A1 (en) | 2020-03-05 |
KR101879068B1 (en) | 2018-07-16 |
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Legal Events
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
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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 |
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STAA | Information on the status of an ep patent application or granted ep patent |
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17P | Request for examination filed |
Effective date: 20190604 |
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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 |
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AX | Request for extension of the european patent |
Extension state: BA ME |
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A4 | Supplementary search report drawn up and despatched |
Effective date: 20190930 |
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RIC1 | Information provided on ipc code assigned before grant |
Ipc: C21D 8/06 20060101ALI20190924BHEP Ipc: C22C 38/06 20060101ALI20190924BHEP Ipc: C22C 38/08 20060101ALI20190924BHEP Ipc: C22C 38/04 20060101AFI20190924BHEP Ipc: C21D 9/52 20060101ALI20190924BHEP Ipc: C22C 38/02 20060101ALI20190924BHEP Ipc: C22C 38/14 20060101ALI20190924BHEP |
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DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
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18W | Application withdrawn |
Effective date: 20200323 |