TW200604352A - High-rigidity high-strength thin steel sheet and method for producing same - Google Patents
High-rigidity high-strength thin steel sheet and method for producing sameInfo
- Publication number
- TW200604352A TW200604352A TW094110219A TW94110219A TW200604352A TW 200604352 A TW200604352 A TW 200604352A TW 094110219 A TW094110219 A TW 094110219A TW 94110219 A TW94110219 A TW 94110219A TW 200604352 A TW200604352 A TW 200604352A
- Authority
- TW
- Taiwan
- Prior art keywords
- less
- steel sheet
- thin steel
- strength thin
- rigidity
- Prior art date
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
- 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
- C22C38/04—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
- 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
- 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
-
- 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
-
- 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
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium 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
- C21D2211/005—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)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
Disclosed is a high-rigidity high-strength thin steel sheet having a tensile strength of not less than 590 MPa and a Young's modulus of not less than 230 GPa at the same time. The high-rigidity high-strength thin steel sheet has a composition consisting of, in mass%, C:0.02-0.15%, Si: 1.5% or less, Mn: 1.0-3.5%, P: 0.05% or less, S: 0.01% or less, Al: 1.5% or less, N: 0.01% or less, Ti: 0.02-0.50%, and the balance of iron and unavoidable impurities, wherein the C, N, S and Ti contents satisfy the following relations: Ti* = Ti - (47.9/14) x N - (47.9/32.1) x S ≥ 0.01 and 0.01 ≤ C - (12/47.9) x Ti* ≤ 0.05. The structure of such a steel sheet is mainly composed of a ferrite phase, and contains not less than 1% of a martensite phase in the area ratio.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004107040 | 2004-03-31 | ||
JP2004346620 | 2004-11-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200604352A true TW200604352A (en) | 2006-02-01 |
TWI312810B TWI312810B (en) | 2009-08-01 |
Family
ID=35063806
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW094110219A TW200604352A (en) | 2004-03-31 | 2005-03-31 | High-rigidity high-strength thin steel sheet and method for producing same |
Country Status (7)
Country | Link |
---|---|
US (1) | US20070144633A1 (en) |
EP (1) | EP1731627B1 (en) |
KR (1) | KR100881047B1 (en) |
AU (1) | AU2005227564B2 (en) |
CA (1) | CA2546009A1 (en) |
TW (1) | TW200604352A (en) |
WO (1) | WO2005095664A1 (en) |
Cited By (1)
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TWI488979B (en) * | 2012-07-31 | 2015-06-21 | Nippon Steel & Sumitomo Metal Corp | Cold-rolled steel sheet, zinc-based galvanized cold-rolled steel sheet, molten galvanized cold-rolled steel sheet, alloyed hot-dip galvanized cold-rolled steel sheet, and the like |
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US7442268B2 (en) * | 2004-11-24 | 2008-10-28 | Nucor Corporation | Method of manufacturing cold rolled dual-phase steel sheet |
US8337643B2 (en) * | 2004-11-24 | 2012-12-25 | Nucor Corporation | Hot rolled dual phase steel sheet |
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ES2325964T3 (en) | 2006-10-30 | 2009-09-25 | Thyssenkrupp Steel Ag | PROCEDURE FOR MANUFACTURING STEEL FLAT PRODUCTS FROM A MULTIPHASIC STEEL ALLOYED WITH SILICON. |
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CN100435987C (en) * | 2006-11-10 | 2008-11-26 | 广州珠江钢铁有限责任公司 | Method for manufacturing 700MPa high-strength weathering steel based on thin slab continuous casting and rolling flow by use of Ti microalloying process |
JP5194878B2 (en) * | 2007-04-13 | 2013-05-08 | Jfeスチール株式会社 | High-strength hot-dip galvanized steel sheet excellent in workability and weldability and method for producing the same |
JP4445522B2 (en) * | 2007-06-20 | 2010-04-07 | 豊田鉄工株式会社 | Reinforcing member for vehicle center pillar |
JP5272548B2 (en) * | 2007-07-11 | 2013-08-28 | Jfeスチール株式会社 | Manufacturing method of high strength cold-rolled steel sheet with low yield strength and small material fluctuation |
EP2028282B1 (en) * | 2007-08-15 | 2012-06-13 | ThyssenKrupp Steel Europe AG | Dual-phase steel, flat product made of such dual-phase steel and method for manufacturing a flat product |
PL2031081T3 (en) * | 2007-08-15 | 2011-11-30 | Thyssenkrupp Steel Europe Ag | Dual-phase steel, flat product made of such dual-phase steel and method for manufacturing a flat product |
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Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3299287B2 (en) * | 1990-08-17 | 2002-07-08 | 川崎製鉄株式会社 | High strength steel sheet for forming and its manufacturing method |
JPH05263191A (en) * | 1992-01-24 | 1993-10-12 | Sumitomo Metal Ind Ltd | Hot rolled steel sheet high in young's modulus in width direction and its manufacture |
JP3511272B2 (en) * | 1995-05-18 | 2004-03-29 | 住友金属工業株式会社 | Manufacturing method of high Young's modulus steel sheet |
JP3899680B2 (en) * | 1998-05-29 | 2007-03-28 | Jfeスチール株式会社 | Paint bake-hardening type high-tensile steel sheet and manufacturing method thereof |
JP3972467B2 (en) * | 1998-06-04 | 2007-09-05 | Jfeスチール株式会社 | High-tensile steel plate for processing |
JP3663918B2 (en) * | 1998-07-02 | 2005-06-22 | Jfeスチール株式会社 | Steel plate for cans having excellent shape maintainability and method for producing the same |
AU780588B2 (en) * | 2000-04-07 | 2005-04-07 | Jfe Steel Corporation | Hot rolled steel plate, cold rolled steel plate and hot dip galvanized steel plate being excellent in strain aging hardening characteristics, and method for their production |
JP3762700B2 (en) * | 2001-12-26 | 2006-04-05 | 新日本製鐵株式会社 | High-strength steel sheet excellent in formability and chemical conversion treatment and method for producing the same |
JP3870840B2 (en) * | 2002-05-23 | 2007-01-24 | Jfeスチール株式会社 | Composite structure type high-tensile cold-rolled steel sheet excellent in deep drawability and stretch flangeability and method for producing the same |
JP4407449B2 (en) * | 2003-09-26 | 2010-02-03 | Jfeスチール株式会社 | High strength steel plate and manufacturing method thereof |
JP4506439B2 (en) * | 2004-03-31 | 2010-07-21 | Jfeスチール株式会社 | High-rigidity and high-strength steel sheet and manufacturing method thereof |
-
2005
- 2005-03-31 WO PCT/JP2005/006327 patent/WO2005095664A1/en not_active Application Discontinuation
- 2005-03-31 EP EP05728004.2A patent/EP1731627B1/en not_active Ceased
- 2005-03-31 US US10/578,524 patent/US20070144633A1/en not_active Abandoned
- 2005-03-31 CA CA002546009A patent/CA2546009A1/en not_active Abandoned
- 2005-03-31 TW TW094110219A patent/TW200604352A/en not_active IP Right Cessation
- 2005-03-31 KR KR1020067014872A patent/KR100881047B1/en active IP Right Grant
- 2005-03-31 AU AU2005227564A patent/AU2005227564B2/en not_active Ceased
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI488979B (en) * | 2012-07-31 | 2015-06-21 | Nippon Steel & Sumitomo Metal Corp | Cold-rolled steel sheet, zinc-based galvanized cold-rolled steel sheet, molten galvanized cold-rolled steel sheet, alloyed hot-dip galvanized cold-rolled steel sheet, and the like |
Also Published As
Publication number | Publication date |
---|---|
EP1731627B1 (en) | 2013-08-21 |
KR100881047B1 (en) | 2009-02-05 |
EP1731627A4 (en) | 2007-10-31 |
CA2546009A1 (en) | 2005-10-13 |
US20070144633A1 (en) | 2007-06-28 |
TWI312810B (en) | 2009-08-01 |
EP1731627A1 (en) | 2006-12-13 |
KR20060134029A (en) | 2006-12-27 |
WO2005095664A1 (en) | 2005-10-13 |
AU2005227564B2 (en) | 2008-02-21 |
AU2005227564A1 (en) | 2005-10-13 |
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Legal Events
Date | Code | Title | Description |
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MM4A | Annulment or lapse of patent due to non-payment of fees |