JPS55107733A - Cold rolled steel plate having superior press workability - Google Patents
Cold rolled steel plate having superior press workabilityInfo
- Publication number
- JPS55107733A JPS55107733A JP1640179A JP1640179A JPS55107733A JP S55107733 A JPS55107733 A JP S55107733A JP 1640179 A JP1640179 A JP 1640179A JP 1640179 A JP1640179 A JP 1640179A JP S55107733 A JPS55107733 A JP S55107733A
- Authority
- JP
- Japan
- Prior art keywords
- steel plate
- content
- sol
- cold rolled
- press workability
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
- C21D9/48—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
PURPOSE:To improve the press workability of a steel plate used in the auto industry by hot rolling a steel with a low N content, a specified relation between B and N contents, a specified Al content, etc. followed by cold rolling and recrystallization annealing. CONSTITUTION:A steel consisting of, by wt., C 0.002-0.10%, N<=0.0035%, acid sol. Al 0.001-0.010%, B<=0.0025%, P<=0.1%, S<=0.03%, Si<=0.03%, Mn<=1.0%, and the balance Fe and inevitable impurities and satisfying (B%)-11/14(N%)<= 0.0005% and Mn/S>=7 is hot rolled by low temp. heating, cold rolled, and subjected to recrystallization annealing. By restricting the N content of the compsn. and combinedly adding an adequate amt. of Al and B the contents of AlN, BN, sol. Al and sol. N in the resulting steel plate are regulated to optimum ranges, so the plate shows superior values in yield strength, tensile strength, total elongation, Erichsen test, etc.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1640179A JPS55107733A (en) | 1979-02-15 | 1979-02-15 | Cold rolled steel plate having superior press workability |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1640179A JPS55107733A (en) | 1979-02-15 | 1979-02-15 | Cold rolled steel plate having superior press workability |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55107733A true JPS55107733A (en) | 1980-08-19 |
Family
ID=11915215
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1640179A Pending JPS55107733A (en) | 1979-02-15 | 1979-02-15 | Cold rolled steel plate having superior press workability |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55107733A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5680354A (en) * | 1979-12-06 | 1981-07-01 | Nippon Steel Corp | Method of suppressing cracking of b-containing steel ingot continuously cast |
JPS56156720A (en) * | 1980-05-01 | 1981-12-03 | Nippon Steel Corp | Manufacture of cold rolled steel plate excellent in workability |
JPS5819465A (en) * | 1981-07-27 | 1983-02-04 | Nippon Kokan Kk <Nkk> | Manufacture of galvanized steel plate with superior press formability |
JPS6082616A (en) * | 1983-10-13 | 1985-05-10 | Kawasaki Steel Corp | Production of extra low carbon cold rolled steel plate for deep drawing |
JPS62139849A (en) * | 1985-12-13 | 1987-06-23 | Kobe Steel Ltd | Hot rolled soft steel sheet having superior workability |
CN103757644A (en) * | 2014-01-23 | 2014-04-30 | 常州盛德无缝钢管有限公司 | Complex heat treatment method capable of improving nickel-based alloy pipe |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51138516A (en) * | 1975-05-27 | 1976-11-30 | Nippon Steel Corp | Process for producing cold rolled steel sheet having excellent pressforming properties by low temperature heating of slab |
JPS5577910A (en) * | 1978-12-08 | 1980-06-12 | Nippon Steel Corp | Manufacture through continuous annealing of cold rolled steel sheet for drawing work |
-
1979
- 1979-02-15 JP JP1640179A patent/JPS55107733A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51138516A (en) * | 1975-05-27 | 1976-11-30 | Nippon Steel Corp | Process for producing cold rolled steel sheet having excellent pressforming properties by low temperature heating of slab |
JPS5577910A (en) * | 1978-12-08 | 1980-06-12 | Nippon Steel Corp | Manufacture through continuous annealing of cold rolled steel sheet for drawing work |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5680354A (en) * | 1979-12-06 | 1981-07-01 | Nippon Steel Corp | Method of suppressing cracking of b-containing steel ingot continuously cast |
JPS6129818B2 (en) * | 1979-12-06 | 1986-07-09 | Nippon Steel Corp | |
JPS56156720A (en) * | 1980-05-01 | 1981-12-03 | Nippon Steel Corp | Manufacture of cold rolled steel plate excellent in workability |
JPS5819465A (en) * | 1981-07-27 | 1983-02-04 | Nippon Kokan Kk <Nkk> | Manufacture of galvanized steel plate with superior press formability |
JPS6152218B2 (en) * | 1981-07-27 | 1986-11-12 | Nippon Kokan Kk | |
JPS6082616A (en) * | 1983-10-13 | 1985-05-10 | Kawasaki Steel Corp | Production of extra low carbon cold rolled steel plate for deep drawing |
JPS6334209B2 (en) * | 1983-10-13 | 1988-07-08 | Kawasaki Steel Co | |
JPS62139849A (en) * | 1985-12-13 | 1987-06-23 | Kobe Steel Ltd | Hot rolled soft steel sheet having superior workability |
CN103757644A (en) * | 2014-01-23 | 2014-04-30 | 常州盛德无缝钢管有限公司 | Complex heat treatment method capable of improving nickel-based alloy pipe |
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