JPS6425945A - Cold rolled steel plate for drawing having excellent elongation and its production - Google Patents

Cold rolled steel plate for drawing having excellent elongation and its production

Info

Publication number
JPS6425945A
JPS6425945A JP17905887A JP17905887A JPS6425945A JP S6425945 A JPS6425945 A JP S6425945A JP 17905887 A JP17905887 A JP 17905887A JP 17905887 A JP17905887 A JP 17905887A JP S6425945 A JPS6425945 A JP S6425945A
Authority
JP
Japan
Prior art keywords
temp
steel plate
steel
range
cold rolled
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.)
Pending
Application number
JP17905887A
Other languages
Japanese (ja)
Inventor
Naomitsu Mizui
Atsuki Okamoto
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP17905887A priority Critical patent/JPS6425945A/en
Publication of JPS6425945A publication Critical patent/JPS6425945A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To stably produce the titled steel plate by subjecting the steel having the specific compsn. consisting of C, Mn, P, S, Al, Nb, B, N and Fe to specific hot rolling and cold rolling and thereafter annealing it in the specific temp. range. CONSTITUTION:The steel contg., by weight, <=0.0020% C, 0.001-0.500% Mn, <0.01% P, <=0.01% S, 0.001-0.100% acid soluble Al, 0.003-0.025% Nb as well as 3C<=Nb<=10C+0.015, 0.0003-0.0050% B as well as 0.5-1.0 B/N, <=0.0050% N and the balance consisting substantially of Fe is soaked to >=1,000 deg.C and preferably to about 1,250 deg.C. Said steel is thereafter hot rolled at the temp. range of the Ar3 transformation point or above and is wound at the low temp. of 720-500 deg.C. The hot rolled steel plate is then cold rolled at 60-95% draft ratio and is thereafter annealed at the temp. range of the recrystallization temp. - the Ac3 transformation temp.
JP17905887A 1987-07-20 1987-07-20 Cold rolled steel plate for drawing having excellent elongation and its production Pending JPS6425945A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17905887A JPS6425945A (en) 1987-07-20 1987-07-20 Cold rolled steel plate for drawing having excellent elongation and its production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17905887A JPS6425945A (en) 1987-07-20 1987-07-20 Cold rolled steel plate for drawing having excellent elongation and its production

Publications (1)

Publication Number Publication Date
JPS6425945A true JPS6425945A (en) 1989-01-27

Family

ID=16059375

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17905887A Pending JPS6425945A (en) 1987-07-20 1987-07-20 Cold rolled steel plate for drawing having excellent elongation and its production

Country Status (1)

Country Link
JP (1) JPS6425945A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0537434U (en) * 1991-10-22 1993-05-21 政人 石井 Check
JPH05263141A (en) * 1991-03-01 1993-10-12 Toyo Kohan Co Ltd Production of continuously annealed steel sheet

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5819442A (en) * 1981-07-27 1983-02-04 Nippon Kokan Kk <Nkk> Manufacture of high strength cold rolled steel plate for working by continuous annealing
JPS6013052A (en) * 1983-07-01 1985-01-23 Nippon Kokan Kk <Nkk> Cold rolled steel sheet for extremely deep drawing
JPS6230822A (en) * 1985-07-30 1987-02-09 Nippon Steel Corp Manufacture of steel sheet superior in press formability

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5819442A (en) * 1981-07-27 1983-02-04 Nippon Kokan Kk <Nkk> Manufacture of high strength cold rolled steel plate for working by continuous annealing
JPS6013052A (en) * 1983-07-01 1985-01-23 Nippon Kokan Kk <Nkk> Cold rolled steel sheet for extremely deep drawing
JPS6230822A (en) * 1985-07-30 1987-02-09 Nippon Steel Corp Manufacture of steel sheet superior in press formability

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05263141A (en) * 1991-03-01 1993-10-12 Toyo Kohan Co Ltd Production of continuously annealed steel sheet
JPH0537434U (en) * 1991-10-22 1993-05-21 政人 石井 Check

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