EP3239331A4 - High-strength steel having superior brittle crack arrestability, and production method therefor - Google Patents
High-strength steel having superior brittle crack arrestability, and production method therefor Download PDFInfo
- Publication number
- EP3239331A4 EP3239331A4 EP15873589.4A EP15873589A EP3239331A4 EP 3239331 A4 EP3239331 A4 EP 3239331A4 EP 15873589 A EP15873589 A EP 15873589A EP 3239331 A4 EP3239331 A4 EP 3239331A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- production method
- strength steel
- method therefor
- brittle crack
- crack arrestability
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000010959 steel Substances 0.000 title 1
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
- C21D9/46—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
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/02—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
-
- 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
- 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
- C21D8/021—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular fabrication or treatment of ingot or slab
-
- 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
- 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
- C22C38/08—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
- C22C38/12—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
- C21D2201/00—Treatment for obtaining particular effects
- C21D2201/05—Grain orientation
-
- 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
-
- 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
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)
- Heat Treatment Of Steel (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20140189132 | 2014-12-24 | ||
PCT/KR2015/014054 WO2016105062A1 (en) | 2014-12-24 | 2015-12-21 | High-strength steel having excellent resistance to brittle crack propagation, and production method therefor |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3239331A1 EP3239331A1 (en) | 2017-11-01 |
EP3239331A4 true EP3239331A4 (en) | 2017-11-08 |
EP3239331B1 EP3239331B1 (en) | 2020-10-28 |
Family
ID=56151008
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15873589.4A Active EP3239331B1 (en) | 2014-12-24 | 2015-12-21 | High-strength steel having superior brittle crack arrestability, and production method therefor |
Country Status (6)
Country | Link |
---|---|
US (1) | US20170327922A1 (en) |
EP (1) | EP3239331B1 (en) |
JP (1) | JP6788589B2 (en) |
KR (1) | KR101746999B1 (en) |
CN (1) | CN107109597B (en) |
WO (1) | WO2016105062A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3239330B1 (en) | 2014-12-24 | 2020-12-02 | Posco | High-strength steel having superior brittle crack arrestability, and production method therefor |
JP6475837B2 (en) * | 2014-12-24 | 2019-02-27 | ポスコPosco | High strength steel material excellent in brittle crack propagation resistance and manufacturing method thereof |
JP6504131B2 (en) * | 2016-08-09 | 2019-04-24 | Jfeスチール株式会社 | High strength thick steel plate and method of manufacturing the same |
KR101917455B1 (en) * | 2016-12-22 | 2018-11-09 | 주식회사 포스코 | Extremely thick steel having excellent surface part naval research laboratory-drop weight test property |
KR102209561B1 (en) * | 2018-11-30 | 2021-01-28 | 주식회사 포스코 | Ultra thick steel excellent in brittle crack arrestability and manufacturing method for the same |
KR102209547B1 (en) * | 2018-12-19 | 2021-01-28 | 주식회사 포스코 | Ultra thick structural steel having superior brittle crack initiation resistance and method of manufacturing the same |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08120338A (en) * | 1994-09-07 | 1996-05-14 | Nippon Steel Corp | Production of thick steel plate for welded structure excellent in brittle fracture propagation stopping property of welding joint |
JPH11279684A (en) * | 1998-03-26 | 1999-10-12 | Nippon Steel Corp | High tensile strength steel for welding, excellent in toughness in extra large heat input weld heat-affected zone |
KR100723201B1 (en) * | 2005-12-16 | 2007-05-29 | 주식회사 포스코 | High strength and toughness steel having superior toughness in multi-pass welded region and method for manufacturing the same |
EP2006407A1 (en) * | 2006-04-13 | 2008-12-24 | Nippon Steel Corporation | High-strength steel plate with superior crack arrestability |
EP2119803A1 (en) * | 2007-03-05 | 2009-11-18 | Nippon Steel Corporation | Thick high-strength steel plate and process for producing the same |
EP2390047A1 (en) * | 2009-01-14 | 2011-11-30 | Nippon Steel Corporation | Weld structure having brittle fracture arresting characterstics |
EP2660346A2 (en) * | 2010-12-28 | 2013-11-06 | Posco | High-strength steel sheet having superior toughness at cryogenic temperatures, and method for manufacturing same |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04180521A (en) * | 1990-11-14 | 1992-06-26 | Kobe Steel Ltd | Production of high tensile thick steel plate having high yield strength and high toughness |
JP4830330B2 (en) * | 2005-03-25 | 2011-12-07 | Jfeスチール株式会社 | Manufacturing method of thick-walled low yield ratio high-tensile steel sheet |
KR100660230B1 (en) * | 2005-12-26 | 2006-12-21 | 주식회사 포스코 | Thick steel plate for welded structure having high strength and excellent toughness at the center of thickness and method of producing the same |
JP5064150B2 (en) * | 2006-12-14 | 2012-10-31 | 新日本製鐵株式会社 | High strength steel plate with excellent brittle crack propagation stopping performance |
KR100957964B1 (en) * | 2007-12-26 | 2010-05-17 | 주식회사 포스코 | Steel for a structure having excellent low temperature toughnetss, tensile strength and low yield ratio, of heat affected zone and manufacturing method for the same |
KR101360737B1 (en) * | 2009-12-28 | 2014-02-07 | 주식회사 포스코 | High strength steel plate having excellent resistance to brittle crack initiation and method for manufacturing the same |
WO2012108543A1 (en) * | 2011-02-08 | 2012-08-16 | Jfeスチール株式会社 | Thick steel plate of at least 50mm in thickness with superior long brittle fracture propagation stopping properties, manufacturing method for same, and method for evaluating long brittle fracture propagation stopping performance and test apparatus for same |
JP5304925B2 (en) * | 2011-12-27 | 2013-10-02 | Jfeスチール株式会社 | Structural high-strength thick steel plate with excellent brittle crack propagation stopping characteristics and method for producing the same |
BR112014015789B1 (en) * | 2011-12-27 | 2019-10-29 | Jfe Steel Corp | sheet steel and method for producing it |
TWI463018B (en) * | 2012-04-06 | 2014-12-01 | Nippon Steel & Sumitomo Metal Corp | High strength steel plate with excellent crack arrest property |
JP2013221189A (en) * | 2012-04-17 | 2013-10-28 | Nippon Steel & Sumitomo Metal Corp | High-strength thick steel plate excellent in brittle crack propagation arresting capability |
JP2013221190A (en) * | 2012-04-17 | 2013-10-28 | Nippon Steel & Sumitomo Metal Corp | High-strength thick steel plate excellent in brittle crack propagation arresting capability |
KR20130134333A (en) * | 2012-05-30 | 2013-12-10 | 현대제철 주식회사 | High strength steel sheet and method of manufacturing the same |
KR20140098900A (en) * | 2013-01-31 | 2014-08-11 | 현대제철 주식회사 | High strength thick steel plate and method for manufacturing the same |
JP6475837B2 (en) * | 2014-12-24 | 2019-02-27 | ポスコPosco | High strength steel material excellent in brittle crack propagation resistance and manufacturing method thereof |
EP3239330B1 (en) * | 2014-12-24 | 2020-12-02 | Posco | High-strength steel having superior brittle crack arrestability, and production method therefor |
-
2015
- 2015-12-21 CN CN201580070867.7A patent/CN107109597B/en active Active
- 2015-12-21 WO PCT/KR2015/014054 patent/WO2016105062A1/en active Application Filing
- 2015-12-21 EP EP15873589.4A patent/EP3239331B1/en active Active
- 2015-12-21 US US15/535,582 patent/US20170327922A1/en not_active Abandoned
- 2015-12-21 JP JP2017532655A patent/JP6788589B2/en active Active
- 2015-12-24 KR KR1020150186724A patent/KR101746999B1/en active IP Right Grant
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08120338A (en) * | 1994-09-07 | 1996-05-14 | Nippon Steel Corp | Production of thick steel plate for welded structure excellent in brittle fracture propagation stopping property of welding joint |
JPH11279684A (en) * | 1998-03-26 | 1999-10-12 | Nippon Steel Corp | High tensile strength steel for welding, excellent in toughness in extra large heat input weld heat-affected zone |
KR100723201B1 (en) * | 2005-12-16 | 2007-05-29 | 주식회사 포스코 | High strength and toughness steel having superior toughness in multi-pass welded region and method for manufacturing the same |
EP2006407A1 (en) * | 2006-04-13 | 2008-12-24 | Nippon Steel Corporation | High-strength steel plate with superior crack arrestability |
EP2119803A1 (en) * | 2007-03-05 | 2009-11-18 | Nippon Steel Corporation | Thick high-strength steel plate and process for producing the same |
EP2390047A1 (en) * | 2009-01-14 | 2011-11-30 | Nippon Steel Corporation | Weld structure having brittle fracture arresting characterstics |
EP2660346A2 (en) * | 2010-12-28 | 2013-11-06 | Posco | High-strength steel sheet having superior toughness at cryogenic temperatures, and method for manufacturing same |
Non-Patent Citations (1)
Title |
---|
See also references of WO2016105062A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20170327922A1 (en) | 2017-11-16 |
JP6788589B2 (en) | 2020-11-25 |
WO2016105062A8 (en) | 2016-11-24 |
KR101746999B1 (en) | 2017-06-15 |
CN107109597A (en) | 2017-08-29 |
CN107109597B (en) | 2020-01-31 |
EP3239331A1 (en) | 2017-11-01 |
WO2016105062A1 (en) | 2016-06-30 |
EP3239331B1 (en) | 2020-10-28 |
KR20160078926A (en) | 2016-07-05 |
JP2018503744A (en) | 2018-02-08 |
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