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 productionInfo
- 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
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.
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)
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)
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 |
-
1987
- 1987-07-20 JP JP17905887A patent/JPS6425945A/en active Pending
Patent Citations (3)
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)
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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