CN108130481A - A kind of excellent cold-rolled steel sheet of stretch flange - Google Patents

A kind of excellent cold-rolled steel sheet of stretch flange Download PDF

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Publication number
CN108130481A
CN108130481A CN201711285861.9A CN201711285861A CN108130481A CN 108130481 A CN108130481 A CN 108130481A CN 201711285861 A CN201711285861 A CN 201711285861A CN 108130481 A CN108130481 A CN 108130481A
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CN
China
Prior art keywords
rolled steel
steel sheet
stretch flange
cold
excellent cold
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.)
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Application number
CN201711285861.9A
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Chinese (zh)
Inventor
杨波
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Anhui Kehui Steel Structure Engineering Co Ltd
Original Assignee
Anhui Kehui Steel Structure Engineering Co Ltd
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Publication date
Application filed by Anhui Kehui Steel Structure Engineering Co Ltd filed Critical Anhui Kehui Steel Structure Engineering Co Ltd
Priority to CN201711285861.9A priority Critical patent/CN108130481A/en
Publication of CN108130481A publication Critical patent/CN108130481A/en
Withdrawn legal-status Critical Current

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    • 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
    • C22C38/002—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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

The invention discloses the cold-rolled steel sheet that a kind of stretch flange is excellent, with following chemical compositions：Contain C in terms of quality %：0.1%~0.5%, Mn：0.05%~0.3%, Si：0.01%~0.2%, AL：0.03%~0.15%, Ni：0.005%~0.01%, Mo：0.003%~0.05%, Cu：0.05%~0.12%, Ca：0.005%~0.2%, Su：0.001%~0.05%, Nb：0.001%~0.005%, P：0.003%~0.04%, S：0.006%~0.015%, surplus is made of iron and inevitable impurity.The cold-rolled steel sheet ductility of the present invention, processing hardening, stretch flange is excellent, tensile strength is high, tension is high and toughness is high.

Description

A kind of excellent cold-rolled steel sheet of stretch flange
Technical field
The present invention relates to the cold-rolled steel sheets that a kind of stretch flange is excellent.
Background technology
Today that height is segmented in industrial technology field, there have to the material requirements used in each technical field to be special and high The performance of degree.For example, for the cold-rolled steel sheet used after compression moulding, with the diversification of compacting shape, it is also desirable to more excellent Mouldability.Furthermore, it desired to there is high intensity, the application of high tensile strength cold-rolled steel sheet is had studied.Especially for automobile cold-rolled steel Plate, the considerations of to earth environment, in order to which body lightening is improved fuel consumption efficiency, to thin-walled high-mouldability The demand of high tensile strength cold-rolled steel sheet significantly increases.In compression moulding, the thickness of used cold-rolled steel sheet is thinner, easier hair Raw crackle, gauffer, it is therefore desirable to the superior cold-rolled steel sheet of ductility, stretch flange.However, this compression moulding and cold rolling The high intensity of steel plate is the anti-characteristic of the back of the body, it is difficult to while meet these characteristics.
Invention content
The purpose of the present invention is that solve the above-mentioned problems and provides a kind of ductility, processing hardening, stretch flange The excellent cold-rolled steel sheet of property.
To achieve these goals, the present invention is achieved by the following technical solutions：A kind of excellent cold of stretch flange Rolled steel plate, with following chemical compositions：Contain C in terms of quality %：0.1%~0.5%, Mn：0.05%~0.3%, Si：0.01% ~0.2%, AL：0.03%~0.15%, Ni：0.005%~0.01%, Mo：0.003%~0.05%, Cu：0.05%~0.12%, Ca：0.005%~0.2%, Su：0.001%~0.05%, Nb：0.001%~0.005%, P：0.003%~0.04%, S： 0.006%~0.015%, surplus is made of iron and inevitable impurity.
Further, the excellent cold-rolled steel sheet of a kind of stretch flange, with following chemical compositions：Contained in terms of quality % C：0.1%~0.35%, Mn：0.05%~0.15%, Si：0.01%~0.15%, AL：0.03%~0.1%, Ni：0.005%~ 0.008%、Mo：0.003%~0.02%, Cu：0.05%~0.1%, Ca：0.005%~0.15%, Su：0.001%~0.02%, Nb：0.001%~0.003%, P：0.003%~0.02%, S：0.006%~0.01%, surplus is by iron and inevitable impurity It forms.
Further, the excellent cold-rolled steel sheet of a kind of stretch flange, with following chemical compositions：Contained in terms of quality % There is C：0.25%、Mn：0.1%、Si：0.08%、AL：0.05%、Ni：0.006%、Mo：0.01%、Cu：0.08%、Ca：0.008%、Su： 0.01%、Nb：0.002%、P：0.01%、S：0.008%, surplus is made of iron and inevitable impurity.
In summary the invention has the advantages that：The cold-rolled steel sheet ductility of the present invention, processing hardening, stretching are convex Edge is excellent, tensile strength is high, tension is high and toughness is high.
Specific embodiment
Specific embodiment 1：The excellent cold-rolled steel sheet of a kind of stretch flange, with following chemical compositions：Contained in terms of quality % There is C：0.1% 、Mn：0.05% 、Si：0.01% 、AL：0.03% 、Ni：0.005% 、Mo：0.003% 、Cu：0.05% 、Ca： 0.005% 、Su：0.001% 、Nb：0.001% 、P：0.003% 、S：0.006%, surplus is by iron and inevitable impurity structure Into.
Specific embodiment 2：The excellent cold-rolled steel sheet of a kind of stretch flange, with following chemical compositions：Contained in terms of quality % There is C：0.25%、Mn：0.1%、Si：0.08%、AL：0.05%、Ni：0.006%、Mo：0.01%、Cu：0.08%、Ca：0.008%、Su： 0.01%、Nb：0.002%、P：0.01%、S：0.008%, surplus is made of iron and inevitable impurity.
Specific embodiment 3：The excellent cold-rolled steel sheet of a kind of stretch flange, with following chemical compositions：Contained in terms of quality % There is C：0.5%、Mn：0.3%、Si：0.2%、AL：0.15%、Ni：0.01%、Mo：0.05%、Cu：0.12%、Ca：0.2%、Su： 0.05%、Nb：0.005%、P：0.04%、S：0.015%, surplus is made of iron and inevitable impurity.
Better embodiment of the embodiment provided above for the present invention only is used for facilitating illustrating the present invention, not to this hair The limitation of bright work in any form, any those of ordinary skill in the art, if putting forward skill not departing from the present invention In the range of art feature, using the equivalent embodiment for locally changing or modifying made by disclosed technology contents, and Without departing from the technical feature content of the present invention, in the range of still falling within the technology of the present invention feature.

Claims (3)

1. the excellent cold-rolled steel sheet of a kind of stretch flange, which is characterized in that there are following chemical compositions：Contain C in terms of quality %： 0.1%~0.5%, Mn：0.05%~0.3%, Si：0.01%~0.2%, AL：0.03%~0.15%, Ni：0.005%~ 0.01%、Mo：0.003%~0.05%, Cu：0.05%~0.12%, Ca：0.005%~0.2%, Su：0.001%~0.05%, Nb：0.001%~0.005%, P：0.003%~0.04%, S：0.006%~0.015%, surplus by iron and inevitably it is miscellaneous Texture into.
2. a kind of excellent cold-rolled steel sheet of stretch flange according to claim 1, which is characterized in that have it is following chemistry into Point：Contain C in terms of quality %：0.1%~0.35%, Mn：0.05%~0.15%, Si：0.01%~0.15%, AL：0.03%~ 0.1%、Ni：0.005%~0.008%, Mo：0.003%~0.02%, Cu：0.05%~0.1%, Ca：0.005%~0.15%, Su：0.001%~0.02%, Nb：0.001%~0.003%, P：0.003%~0.02%, S：0.006%~0.01%, surplus by Iron and inevitable impurity are formed.
3. a kind of excellent cold-rolled steel sheet of stretch flange according to claim 1, which is characterized in that have it is following chemistry into Point：Contain C in terms of quality %：0.25%、Mn：0.1%、Si：0.08%、AL：0.05%、Ni：0.006%、Mo：0.01%、Cu： 0.08%、Ca：0.008%、Su：0.01%、Nb：0.002%、P：0.01%、S：0.008%, surplus is by iron and inevitable impurity It forms.
CN201711285861.9A 2017-12-07 2017-12-07 A kind of excellent cold-rolled steel sheet of stretch flange Withdrawn CN108130481A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711285861.9A CN108130481A (en) 2017-12-07 2017-12-07 A kind of excellent cold-rolled steel sheet of stretch flange

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711285861.9A CN108130481A (en) 2017-12-07 2017-12-07 A kind of excellent cold-rolled steel sheet of stretch flange

Publications (1)

Publication Number Publication Date
CN108130481A true CN108130481A (en) 2018-06-08

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102348823A (en) * 2008-07-11 2012-02-08 株式会社神户制钢所 Cold-rolled steel sheet
CN103459646A (en) * 2011-04-13 2013-12-18 新日铁住金株式会社 High-strength cold-rolled steel sheet with excellent local formability, and manufacturing method thereof
CN103732775A (en) * 2011-07-27 2014-04-16 新日铁住金株式会社 High-strength cold-rolled steel sheet with excellent stretch flangeability and precision punchability, and process for producing same
CN106661698A (en) * 2014-08-28 2017-05-10 杰富意钢铁株式会社 High-strength hot-dip galvanized steel sheet having superb stretch-flangeability, in-plane stability of stretch-flangeability, and bendability, and method for producing same
CN107429370A (en) * 2015-03-31 2017-12-01 株式会社神户制钢所 Processability and collision characteristic is excellent and tensile strength is more than 980MPa high strength cold rolled steel plate and its manufacture method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102348823A (en) * 2008-07-11 2012-02-08 株式会社神户制钢所 Cold-rolled steel sheet
CN103459646A (en) * 2011-04-13 2013-12-18 新日铁住金株式会社 High-strength cold-rolled steel sheet with excellent local formability, and manufacturing method thereof
CN103732775A (en) * 2011-07-27 2014-04-16 新日铁住金株式会社 High-strength cold-rolled steel sheet with excellent stretch flangeability and precision punchability, and process for producing same
CN106661698A (en) * 2014-08-28 2017-05-10 杰富意钢铁株式会社 High-strength hot-dip galvanized steel sheet having superb stretch-flangeability, in-plane stability of stretch-flangeability, and bendability, and method for producing same
CN107429370A (en) * 2015-03-31 2017-12-01 株式会社神户制钢所 Processability and collision characteristic is excellent and tensile strength is more than 980MPa high strength cold rolled steel plate and its manufacture method

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Application publication date: 20180608