JPS57143464A - High-strength cold-rolled steel plate with superior enameling hardenability and its manufacture - Google Patents

High-strength cold-rolled steel plate with superior enameling hardenability and its manufacture

Info

Publication number
JPS57143464A
JPS57143464A JP3005881A JP3005881A JPS57143464A JP S57143464 A JPS57143464 A JP S57143464A JP 3005881 A JP3005881 A JP 3005881A JP 3005881 A JP3005881 A JP 3005881A JP S57143464 A JPS57143464 A JP S57143464A
Authority
JP
Japan
Prior art keywords
enameling
hardenability
strength
superior
steel plate
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.)
Granted
Application number
JP3005881A
Other languages
Japanese (ja)
Other versions
JPS6261664B2 (en
Inventor
Ichiro Kokubo
Shingo Nomura
Katsumi Kameno
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP3005881A priority Critical patent/JPS57143464A/en
Publication of JPS57143464A publication Critical patent/JPS57143464A/en
Publication of JPS6261664B2 publication Critical patent/JPS6261664B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Heat Treatment Of Sheet Steel (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

PURPOSE: To obtain a high strength cold rolled steel plate with very superior enameling hardenability as well as satisfactory formability and strength by specifying the chemical components of a steel and the manufacturing condition such as the hot rolling condition.
CONSTITUTION: A steel consisting of ≤0.01% C, 0.65W2% Si, 0.2W2% Mn, one or more among 0.03W0.15% P, 0.2W2% Cu and ≤0.15% Al, and the balance Fe with impurities is hot-rolled at a temp. above the Ar3 transformation point and coiled at ≥600°C. C is required with respect to the strength, yet excess C deteriorates the enameling hardenability. The lower limit or more of Si is required to enhance the strength and enameling hardenability, yet more than the upper limit of Si deteriorates the workability, etc. The lower limit or more of Mn is required to fix S and to enhance the strength and enameling hardenability, yet more than the upper limit of Mn is unnecessary. By setting the hot rolling and coiling conditions as mentioned above, the amount of soluble C exerting influence on the enameling hardenability is changed through precipitated precipitated carbide and can be maintained in a state suitable for obtaining high enameling hardenability.
COPYRIGHT: (C)1982,JPO&Japio
JP3005881A 1981-03-02 1981-03-02 High-strength cold-rolled steel plate with superior enameling hardenability and its manufacture Granted JPS57143464A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3005881A JPS57143464A (en) 1981-03-02 1981-03-02 High-strength cold-rolled steel plate with superior enameling hardenability and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3005881A JPS57143464A (en) 1981-03-02 1981-03-02 High-strength cold-rolled steel plate with superior enameling hardenability and its manufacture

Publications (2)

Publication Number Publication Date
JPS57143464A true JPS57143464A (en) 1982-09-04
JPS6261664B2 JPS6261664B2 (en) 1987-12-22

Family

ID=12293221

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3005881A Granted JPS57143464A (en) 1981-03-02 1981-03-02 High-strength cold-rolled steel plate with superior enameling hardenability and its manufacture

Country Status (1)

Country Link
JP (1) JPS57143464A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0266116A (en) * 1988-08-29 1990-03-06 Nissan Motor Co Ltd Improvement of fatigue strength of steel sheet

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63189157U (en) * 1987-05-28 1988-12-05

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5798630A (en) * 1980-12-08 1982-06-18 Kawasaki Steel Corp Manufacture of high-tension cold-rolled steel plate with high lankford value and baking hardness

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5798630A (en) * 1980-12-08 1982-06-18 Kawasaki Steel Corp Manufacture of high-tension cold-rolled steel plate with high lankford value and baking hardness

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0266116A (en) * 1988-08-29 1990-03-06 Nissan Motor Co Ltd Improvement of fatigue strength of steel sheet

Also Published As

Publication number Publication date
JPS6261664B2 (en) 1987-12-22

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