TW200606260A - 490MPa grade high strength weldable structural steel having excellent in high temperature strength - Google Patents
490MPa grade high strength weldable structural steel having excellent in high temperature strengthInfo
- Publication number
- TW200606260A TW200606260A TW094124502A TW94124502A TW200606260A TW 200606260 A TW200606260 A TW 200606260A TW 094124502 A TW094124502 A TW 094124502A TW 94124502 A TW94124502 A TW 94124502A TW 200606260 A TW200606260 A TW 200606260A
- Authority
- TW
- Taiwan
- Prior art keywords
- less
- structural steel
- strength
- weldable structural
- high temperature
- Prior art date
Links
- 229910000746 Structural steel Inorganic materials 0.000 title abstract 4
- 229910001563 bainite Inorganic materials 0.000 abstract 2
- 229910052791 calcium Inorganic materials 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 229910052748 manganese Inorganic materials 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 229910052758 niobium Inorganic materials 0.000 abstract 1
- 229910052761 rare earth metal Inorganic materials 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 abstract 1
- 229910052719 titanium Inorganic materials 0.000 abstract 1
- 229910052720 vanadium Inorganic materials 0.000 abstract 1
- 238000003466 welding Methods 0.000 abstract 1
- 229910000859 α-Fe Inorganic materials 0.000 abstract 1
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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, 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
- C22C38/04—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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
- Metal Rolling (AREA)
Abstract
The present invention provides a 490MPa grade high strength weldable structural steel having excellent in high temperature strength at more than 600 DEG C and less than 800 DEG C and a method of producing the same. This high strength weldable structural steel contains, in mass, C at more than 0.005% and less than 0.040%, Si at less than 0.5%, Mn at less than 0.5%, P at less than 0.02%, S at less than 0.01%, Mo at 0.3 - 1.5%, Nb at 0.03 - 0.15%, Al at less than 0.06%, N at less than 0.006%, and further contains one or more of Cu, Ni, Cr, V, Ti, Ca, REM or Mg, if necessary, and satisfy the welding crack sensitivity equation of P CM = C+ Si/30 + Mn/20 + Cu/20 + Ni/60 + Cr/20 + Mo/15 + V/10 + 5B < 0.15, and without containing B, and the remainder Fe and unavoidable impurities, and further the microstructure of this high strength weldable structural steel has a mixed structure composed of ferrite and bainite, where the ratio of bainite is 20 - 90%.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004213511A JP4864297B2 (en) | 2004-07-21 | 2004-07-21 | 490 MPa class high strength steel for welded structure excellent in high temperature strength and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW200606260A true TW200606260A (en) | 2006-02-16 |
| TWI297732B TWI297732B (en) | 2008-06-11 |
Family
ID=35655876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW094124502A TWI297732B (en) | 2004-07-21 | 2005-07-20 | 490mpa grade high strength weldable structural steel having excellent in high temperature strength |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20060016526A1 (en) |
| EP (1) | EP1790749A1 (en) |
| JP (1) | JP4864297B2 (en) |
| CN (1) | CN1989264A (en) |
| TW (1) | TWI297732B (en) |
| WO (1) | WO2006009091A1 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2033204A4 (en) * | 2006-06-29 | 2011-03-23 | Lg Electronics Inc | Paste, method of manufacturing plasma display panel using the paste and plasma display apparatus |
| JP4673822B2 (en) | 2006-11-14 | 2011-04-20 | 新日本製鐵株式会社 | Refractory steel material excellent in toughness of welded joint and method for producing the same |
| JP4858221B2 (en) * | 2007-02-22 | 2012-01-18 | 住友金属工業株式会社 | High-tensile steel with excellent ductile crack initiation characteristics |
| DE102007061084A1 (en) * | 2007-12-19 | 2009-07-02 | Federal-Mogul Sealing Systems Gmbh | Metallic flat gasket and manufacturing process |
| CN101613840B (en) * | 2008-06-23 | 2011-03-30 | 宝山钢铁股份有限公司 | Extra-thick steel plate with excellent strength-toughness matching and high-temperature performance and manufacturing method thereof |
| JP5743382B2 (en) * | 2009-03-19 | 2015-07-01 | Ｊｆｅスチール株式会社 | Steel material for earthquake-resistant structure and manufacturing method thereof |
| KR101130013B1 (en) * | 2009-03-26 | 2012-03-26 | 현대제철 주식회사 | High strenth hot rolled steel sheet, and method for manufacturing the same |
| US20110186182A1 (en) * | 2009-05-15 | 2011-08-04 | Tetsushi Chida | Steel for nitrocarburizing and nitrocarburized parts |
| CN101775561B (en) * | 2010-03-19 | 2012-07-11 | 江苏省沙钢钢铁研究院有限公司 | Low-yield-ratio high-strength thick plate and preparation process thereof |
| CN101857939A (en) * | 2010-06-13 | 2010-10-13 | 攀钢集团钢铁钒钛股份有限公司 | High-strength, high-toughness, low-alloy structural steel strip and production method |
| US9493864B2 (en) * | 2013-03-15 | 2016-11-15 | Am/Ns Calvert Llc | Line pipe steels and process of manufacturing |
| CN103643156B (en) * | 2013-11-21 | 2016-05-11 | 江苏天舜金属材料集团有限公司 | A kind of above high tensile reinforcement of 630MPa level and armored concrete application process thereof |
| CN107190203B (en) * | 2017-05-31 | 2019-07-23 | 武汉钢铁有限公司 | With the yield strength >=800MPa hot rolled sheet and production method of sheet billet Direct Rolling |
| CN109487153B (en) * | 2017-09-11 | 2021-01-08 | 上海梅山钢铁股份有限公司 | A high-hole-expanding hot-rolled and pickled steel sheet with a tensile strength of 440 MPa |
| CN110129539B (en) * | 2019-05-31 | 2021-03-23 | 东北大学 | Production process of 500MPa grade H-shaped steel for ocean engineering |
| CN110699594B (en) * | 2019-10-30 | 2021-06-04 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for smelting IF steel from semisteel at low cost |
| CN112746158A (en) * | 2019-12-30 | 2021-05-04 | 宝钢湛江钢铁有限公司 | YP460MPa thick steel plate with low cost, high crack resistance and high weldability and manufacturing method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2760191B2 (en) * | 1991-12-20 | 1998-05-28 | 住友金属工業株式会社 | Manufacturing method of high weathering steel for steel building with excellent high temperature strength characteristics |
| JP3417878B2 (en) * | 1999-07-02 | 2003-06-16 | 株式会社神戸製鋼所 | High-strength hot-rolled steel sheet excellent in stretch flangeability and fatigue properties and its manufacturing method |
| JP4348102B2 (en) * | 2002-05-20 | 2009-10-21 | 新日本製鐵株式会社 | 490 MPa class high strength steel excellent in high temperature strength and manufacturing method thereof |
| CN101082105A (en) * | 2002-03-29 | 2007-12-05 | 新日本制铁株式会社 | High tensile steel excellent in high temperature strength and method for production thereof |
| JP7056044B2 (en) * | 2017-09-11 | 2022-04-19 | コニカミノルタ株式会社 | Paper processing equipment, image forming system and program |
-
2004
- 2004-07-21 JP JP2004213511A patent/JP4864297B2/en not_active Expired - Fee Related
-
2005
- 2005-07-08 WO PCT/JP2005/013101 patent/WO2006009091A1/en not_active Ceased
- 2005-07-08 CN CNA2005800242067A patent/CN1989264A/en active Pending
- 2005-07-08 EP EP05760159A patent/EP1790749A1/en not_active Withdrawn
- 2005-07-20 TW TW094124502A patent/TWI297732B/en not_active IP Right Cessation
- 2005-08-29 US US11/215,413 patent/US20060016526A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| JP4864297B2 (en) | 2012-02-01 |
| TWI297732B (en) | 2008-06-11 |
| WO2006009091A1 (en) | 2006-01-26 |
| EP1790749A1 (en) | 2007-05-30 |
| CN1989264A (en) | 2007-06-27 |
| US20060016526A1 (en) | 2006-01-26 |
| JP2006028628A (en) | 2006-02-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Annulment or lapse of patent due to non-payment of fees |