RU2012143206A - HIGH with a high YIELD POINT TO tensile strength steel sheet, high strength with a high YIELD POINT TO tensile strength cold rolled steel sheet, high strength with a high YIELD POINT TO Tensile strength galvanized steel sheet, high strength with a high YIELD POINT TO Tensile strength GALVANIZED DIVE STEEL SHEET HIGH STRENGTH WITH HIGH RELATIONSHIP OF THE YIELD TURNKEY TO THE TURNERABILITY TERM Annealed GALVANIZED DIPPED STEEL SHEET, METHOD B MAKING HIGH-HIGH YIELD POINT TO ATTITUDE tensile strength cold rolled steel sheet, METHOD FOR PRODUCING HIGH-HIGH YIELD REGARD TO Tensile strength IMMERSION GALVANIZED STEEL SHEET AND METHOD FOR PRODUCING HIGH-HIGH YIELD REGARD TO Tensile strength galvannealed steel sheet DIVE - Google Patents
HIGH with a high YIELD POINT TO tensile strength steel sheet, high strength with a high YIELD POINT TO tensile strength cold rolled steel sheet, high strength with a high YIELD POINT TO Tensile strength galvanized steel sheet, high strength with a high YIELD POINT TO Tensile strength GALVANIZED DIVE STEEL SHEET HIGH STRENGTH WITH HIGH RELATIONSHIP OF THE YIELD TURNKEY TO THE TURNERABILITY TERM Annealed GALVANIZED DIPPED STEEL SHEET, METHOD B MAKING HIGH-HIGH YIELD POINT TO ATTITUDE tensile strength cold rolled steel sheet, METHOD FOR PRODUCING HIGH-HIGH YIELD REGARD TO Tensile strength IMMERSION GALVANIZED STEEL SHEET AND METHOD FOR PRODUCING HIGH-HIGH YIELD REGARD TO Tensile strength galvannealed steel sheet DIVE Download PDFInfo
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- RU2012143206A RU2012143206A RU2012143206/02A RU2012143206A RU2012143206A RU 2012143206 A RU2012143206 A RU 2012143206A RU 2012143206/02 A RU2012143206/02 A RU 2012143206/02A RU 2012143206 A RU2012143206 A RU 2012143206A RU 2012143206 A RU2012143206 A RU 2012143206A
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Abstract
1. Высокопрочный с высоким отношением предела текучести к пределу прочности стальной лист, включающий:в качестве компонентного состава, в % масс.0,03-0,20% С, 1,0% или менее Si, от более 1,5 до 3,0% Mn, 0,10% или меньше P, 0,05% или менее S, 0,10% или менее А1, 0,010% или менее N, один или несколько элементов, выбранных из Ti, Nb и V, общее содержание которых составляет 0,010-1,000% и остальное Fe с неизбежными примесями,имеющий структуру, включающую феррит и вторичную фазу, в качестве микроструктуры, в которойдоля площади феррита составляет 50% или более и средний размер кристаллического зерна 18 мкм или менее, вторичная фаза включает мартенсит, доля площади которого составляет от 1 до менее 7% и толщина лентовидной структуры, образованной вторичной фазой, удовлетворяет следующему выражению (1):,где Tb означает среднюю толщину лентовидной структуры в направлении толщины листа и Т означает толщину листа.2. Стальной лист по п.1, в котором средний размер кристаллического зерна мартенсита составляет 3 мкм или менее.3. Стальной лист по п.1, состав которого дополнительно включает, в % масс, по меньшей мере, один элемент, выбранный из 0,05-1,00% Cu, 0,05-1,00% Ni и 0,0003-0,0050% В.4. Стальной лист по п.2, состав которого дополнительно включает, в % масс, по меньшей мере, один элемент, выбранный из 0,05-1,00% Cu, 0,05-1,00% Ni и 0,0003-0,0050% В.5. Стальной лист по любому из пп.1-4, состав которого дополнительно включает, в % масс, по меньшей мере, один элемент, выбранный из 0,001-0,005% Са, 0,001-0,005% Mg и 0,001-0,005% редкоземельных металлов (REM).6. Стальной лист по любому из пп.1-4, состав которого дополнительно включает, в % масс, 0,002-0,200% Sn и/или 0,002-0,200% Sb.7. Стальной лист по п.5, состав которого дополнительно включает, в % масс, 0,002-0,200% Sn и/или 0,002-1. High strength with a high ratio of yield strength to tensile strength of a steel sheet, including: as a component composition, in mass% 0.03-0.20% C, 1.0% or less Si, from more than 1.5 to 3 , 0% Mn, 0.10% or less P, 0.05% or less S, 0.10% or less A1, 0.010% or less N, one or more elements selected from Ti, Nb and V, total content which amounts to 0.010-1.000% and the rest Fe with inevitable impurities, having a structure including ferrite and a secondary phase, as a microstructure, in which the ferrite area is 50% or more and the average crystalline size grain size of 18 μm or less, the secondary phase includes martensite, the area fraction of which is from 1 to less than 7% and the thickness of the ribbon-like structure formed by the secondary phase satisfies the following expression (1): where Tb is the average thickness of the ribbon-like structure in the direction of the sheet thickness and T means the thickness of the sheet. 2. A steel sheet according to claim 1, wherein the average crystalline grain size of martensite is 3 μm or less. The steel sheet according to claim 1, the composition of which further includes, in% of the masses, at least one element selected from 0.05-1.00% Cu, 0.05-1.00% Ni and 0.0003-0 , 0050% B.4. The steel sheet according to claim 2, the composition of which further includes, in% of the masses, at least one element selected from 0.05-1.00% Cu, 0.05-1.00% Ni and 0.0003-0 , 0050% B.5. The steel sheet according to any one of claims 1 to 4, the composition of which further includes, in% of the masses, at least one element selected from 0.001-0.005% Ca, 0.001-0.005% Mg and 0.001-0.005% rare earth metals (REM) .6. The steel sheet according to any one of claims 1 to 4, the composition of which further includes, in% by mass, 0.002-0.200% Sn and / or 0.002-0.200% Sb. 7. The steel sheet according to claim 5, the composition of which further includes, in% of the mass, 0.002-0.200% Sn and / or 0.002-
Claims (19)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2012109901A JP2013237877A (en) | 2012-05-11 | 2012-05-11 | High yield ratio type high strength steel sheet, high yield ratio type high strength cold rolled steel sheet, high yield ratio type high strength galvanized steel sheet, high yield ratio type high strength hot dip galvanized steel sheet, high yield ratio type high strength hot dip galvannealed steel sheet, method for producing high yield ratio type high strength cold rolled steel sheet, method for producing high yield ratio type high strength hot dip galvanized steel sheet and method for producing high yield ratio type high strength hot dip galvannealed steel sheet |
JP2012-109901 | 2012-05-11 |
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RU2012143206A true RU2012143206A (en) | 2014-04-20 |
RU2531216C2 RU2531216C2 (en) | 2014-10-20 |
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RU2012143206/02A RU2531216C2 (en) | 2012-05-11 | 2012-10-09 | High-strength steel sheet with high proof/ultimate factor, high-strength cold-rolled steel sheet with high proof/ultimate factor, high-strength galvanised steel sheet with high proof/ultimate factor, high-strength dip galvanised steel sheet with high proof/ultimate factor, high-strength annealed dip galvanised steel sheet with high proof/ultimate factor, method of manufacture of high-strength cold-rolled steel sheet with high proof/ultimate factor, method of manufacture of high-strength dip galvanised steel sheet with high proof/ultimate factor, and method of manufacture of high-strength annealed dip galvanised steel sheet with high proof/ultimate factor |
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JP (1) | JP2013237877A (en) |
BR (1) | BR102012025656A2 (en) |
MY (1) | MY192691A (en) |
RU (1) | RU2531216C2 (en) |
ZA (1) | ZA201209143B (en) |
Families Citing this family (7)
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WO2015107647A1 (en) * | 2014-01-16 | 2015-07-23 | 株式会社日立製作所 | Ferritic steel for welding, and welded structure comprising ferritic steel members welded together |
MX2017010788A (en) | 2015-02-25 | 2018-04-30 | Arcelormittal | Post annealed high tensile strength coated steel sheet having improved yield strength and hole expansion. |
WO2017109538A1 (en) | 2015-12-21 | 2017-06-29 | Arcelormittal | Method for producing a steel sheet having improved strength, ductility and formability |
WO2017109540A1 (en) | 2015-12-21 | 2017-06-29 | Arcelormittal | Method for producing a high strength steel sheet having improved ductility and formability, and obtained steel sheet |
US20190055621A1 (en) * | 2016-03-25 | 2019-02-21 | Jfe Steel Corporation | High-strength galvanized steel sheet and method for producing the same |
WO2018203111A1 (en) * | 2017-05-05 | 2018-11-08 | Arcelormittal | Method for producing a high strength steel sheet having high ductility, formability and weldability, and obtained steel sheet |
US11585289B2 (en) | 2018-11-02 | 2023-02-21 | Nissan Motor Co., Ltd. | Thermally sprayed coating for sliding member and sliding device provided with said thermally sprayed coating for sliding member |
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DE60127879T2 (en) * | 2000-02-29 | 2007-09-06 | Jfe Steel Corp. | High strength hot rolled steel sheet with excellent stretch aging properties |
PL1612288T3 (en) * | 2003-04-10 | 2011-02-28 | Nippon Steel Corp | A method for producing a hot-dip zinc coated steel sheet having high strength |
JP4235030B2 (en) * | 2003-05-21 | 2009-03-04 | 新日本製鐵株式会社 | High-strength cold-rolled steel sheet and high-strength surface-treated steel sheet having excellent local formability and a tensile strength of 780 MPa or more with suppressed increase in hardness of the weld |
JP5369663B2 (en) * | 2008-01-31 | 2013-12-18 | Jfeスチール株式会社 | High-strength hot-dip galvanized steel sheet excellent in workability and manufacturing method thereof |
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2012
- 2012-05-11 JP JP2012109901A patent/JP2013237877A/en active Pending
- 2012-10-08 BR BR102012025656-8A patent/BR102012025656A2/en not_active IP Right Cessation
- 2012-10-09 RU RU2012143206/02A patent/RU2531216C2/en not_active IP Right Cessation
- 2012-11-06 MY MYPI2012004846A patent/MY192691A/en unknown
- 2012-12-04 ZA ZA2012/09143A patent/ZA201209143B/en unknown
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BR102012025656A2 (en) | 2018-01-02 |
MY192691A (en) | 2022-09-01 |
ZA201209143B (en) | 2013-08-28 |
RU2531216C2 (en) | 2014-10-20 |
JP2013237877A (en) | 2013-11-28 |
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