RU2012134767A - HIGH-STRENGTH COLD-ROLLED SHEET WITH EXCELLENT FORMABILITY AND METHOD FOR ITS MANUFACTURE - Google Patents
HIGH-STRENGTH COLD-ROLLED SHEET WITH EXCELLENT FORMABILITY AND METHOD FOR ITS MANUFACTURE Download PDFInfo
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- RU2012134767A RU2012134767A RU2012134767/02A RU2012134767A RU2012134767A RU 2012134767 A RU2012134767 A RU 2012134767A RU 2012134767/02 A RU2012134767/02 A RU 2012134767/02A RU 2012134767 A RU2012134767 A RU 2012134767A RU 2012134767 A RU2012134767 A RU 2012134767A
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- Prior art keywords
- steel sheet
- strength cold
- rolled steel
- sheet according
- less
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Heat Treatment Of Sheet Steel (AREA)
Abstract
1. Высокопрочный холоднокатаный стальной лист с превосходной формуемостью, который имеет состав, мас.%:С: 0,05-0,20;Si: 0,10 или менее;Mn: 0,2-1,7;Р: 0,10 или менее;S: 0,10 или менее;Al: 0,01-0,10;N: 0,010 или менее, иостальное Fe и случайные примеси,причем при условии, что [% М] представляет содержание (%масс.) элемента М в стали, [% Mn]/[% С]≥2,0, доля феррита составляет, по меньшей мере, 90%, доля перлита составляет 1-10% и межпластинчатое расстояние перлита составляет не более 0,5 мкм.2. Высокопрочный холоднокатаный стальной лист по п.1, дополнительно включающий, мас.%, по меньшей мере, один элемент, выбранный из группы, состоящей из В: 0,0002-0,0030, Cr: 0,002-0,10, Ni: 0,002-0,10 и Cu: 0,002-0,10.3. Высокопрочный холоднокатаный стальной лист по п.1 или 2, дополнительно включающий, мас.%, по меньшей мере, один элемент, выбранный из группы, состоящей из Ti, Nb, V, Та, W и Мо, с содержанием каждого 0,002-0,050.4. Высокопрочный холоднокатаный стальной лист по п.1 или 2, дополнительно включающий, мас.% Sb: 0,005-0,050.5. Высокопрочный холоднокатаный стальной лист по п.1 или 2, дополнительно включающий, мас.%, по меньшей мере, один тип элемента, выбранного из группы, состоящей из Са и РЗМ с содержанием каждого 0,0005-0,01.6. Высокопрочный холоднокатаный стальной лист по п.1 или 2, который обладает прочностью на разрыв (TS), по меньшей мере, 390 МПа, относительным удлинением (EL), по меньшей мере, 30% и формуемостью при раздаче отверстия, по меньшей мере, 40%.7. Высокопрочный холоднокатаный стальной лист по п.1 или 2, на поверхность которого нанесен слой покрытия.8. Способ изготовления высокопрочного холоднокатаного стального листа с превосходной формуемостью, включающий получение стального материала, имеющего состав, указанный по любому из п�1. High-strength cold-rolled steel sheet with excellent formability, which has a composition, wt.%: C: 0.05-0.20; Si: 0.10 or less; Mn: 0.2-1.7; P: 0, 10 or less; S: 0.10 or less; Al: 0.01-0.10; N: 0.010 or less, other Fe and random impurities, provided that [% M] represents the content (% wt.) element M in steel, [% Mn] / [% C] ≥2.0, the proportion of ferrite is at least 90%, the percentage of perlite is 1-10% and the plate-to-plate distance of perlite is not more than 0.5 μm. 2 . The high-strength cold-rolled steel sheet according to claim 1, further comprising, by weight, at least one element selected from the group consisting of B: 0.0002-0.0030, Cr: 0.002-0.10, Ni: 0.002 -0.10 and Cu: 0.002-0.10.3. The high-strength cold-rolled steel sheet according to claim 1 or 2, further comprising, by weight, at least one element selected from the group consisting of Ti, Nb, V, Ta, W and Mo, each containing 0.002-0.050.4. The high-strength cold-rolled steel sheet according to claim 1 or 2, further comprising, wt.% Sb: 0.005-0.050.5. The high-strength cold-rolled steel sheet according to claim 1 or 2, further comprising, by weight, at least one type of element selected from the group consisting of Ca and REM with each content of 0.0005-0.01.6. The high-strength cold-rolled steel sheet according to claim 1 or 2, which has a tensile strength (TS) of at least 390 MPa, an elongation of at least 30%, and an elongation at least 40 % .7. A high-strength cold-rolled steel sheet according to claim 1 or 2, on the surface of which a coating layer is applied. A method of manufacturing a high-strength cold-rolled steel sheet with excellent formability, comprising obtaining a steel material having the composition specified in any one of paragraph
Claims (12)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012-066046 | 2012-03-22 | ||
JP2012066046 | 2012-03-22 | ||
JP2012-110817 | 2012-05-14 | ||
JP2012110817A JP2013224477A (en) | 2012-03-22 | 2012-05-14 | High-strength thin steel sheet excellent in workability and method for manufacturing the same |
Publications (2)
Publication Number | Publication Date |
---|---|
RU2012134767A true RU2012134767A (en) | 2014-02-20 |
RU2527514C2 RU2527514C2 (en) | 2014-09-10 |
Family
ID=49594723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2012134767/02A RU2527514C2 (en) | 2012-03-22 | 2012-08-14 | High-strength cold-rolled sheet steel and method of its production |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP2013224477A (en) |
BR (1) | BR102012020445A2 (en) |
MY (2) | MY163256A (en) |
RU (1) | RU2527514C2 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017043835A (en) * | 2015-08-25 | 2017-03-02 | 株式会社神戸製鋼所 | Steel for machine structural use for cold-working, and production method therefor |
WO2017169871A1 (en) * | 2016-03-31 | 2017-10-05 | Jfeスチール株式会社 | Thin steel plate and plated steel plate, hot rolled steel plate manufacturing method, cold rolled full hard steel plate manufacturing method, thin steel plate manufacturing method and plated steel plate manufacturing method |
JPWO2018042522A1 (en) * | 2016-08-30 | 2019-03-28 | 新日鐵住金株式会社 | Oil well pipe for expandable tubular |
KR102271301B1 (en) * | 2018-11-30 | 2021-06-30 | 주식회사 포스코 | Steel sheet for enamel and method of manufacturing the same |
CN110284053B (en) * | 2019-04-30 | 2020-12-08 | 武汉钢铁有限公司 | high-P high-strength-toughness high-weather-resistance hot continuous rolled steel and manufacturing method thereof |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW550296B (en) * | 2000-02-29 | 2003-09-01 | Kawasaki Steel Co | High tensile cold-rolled steel sheet having excellent strain aging hardening properties and manufacturing method thereof |
EP1291447B1 (en) * | 2000-05-31 | 2005-05-04 | JFE Steel Corporation | Cold-rolled steel sheet having excellent strain aging hardening properties and method for producing the same |
US7687152B2 (en) * | 2003-04-10 | 2010-03-30 | Nippon Steel Corporation | High strength molten zinc plated steel sheet and process of production of same |
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 |
-
2012
- 2012-05-14 JP JP2012110817A patent/JP2013224477A/en active Pending
- 2012-08-14 RU RU2012134767/02A patent/RU2527514C2/en not_active IP Right Cessation
- 2012-08-15 BR BRBR102012020445-2A patent/BR102012020445A2/en not_active IP Right Cessation
- 2012-08-15 MY MYPI2012003692A patent/MY163256A/en unknown
- 2012-09-04 MY MYPI2012003691A patent/MY163017A/en unknown
Also Published As
Publication number | Publication date |
---|---|
MY163017A (en) | 2017-07-31 |
JP2013224477A (en) | 2013-10-31 |
RU2527514C2 (en) | 2014-09-10 |
BR102012020445A2 (en) | 2015-06-23 |
MY163256A (en) | 2017-08-30 |
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MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20200815 |