JPS56130430A - Production of high-tensile cold rolled steel sheet - Google Patents
Production of high-tensile cold rolled steel sheetInfo
- Publication number
- JPS56130430A JPS56130430A JP3238280A JP3238280A JPS56130430A JP S56130430 A JPS56130430 A JP S56130430A JP 3238280 A JP3238280 A JP 3238280A JP 3238280 A JP3238280 A JP 3238280A JP S56130430 A JPS56130430 A JP S56130430A
- Authority
- JP
- Japan
- Prior art keywords
- steel sheet
- rolled
- hot
- rolled steel
- steel
- 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
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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
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 Steel (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
PURPOSE:To inexpensively produce a high-tensile cold rolled steel sheet of >=100kg/ mm.<2> tensile strength of outstanding workability and steeL sheet shape by making use of P, V, Nb as reinforcing elements for steel as well as hot-rolling the steel at specified temperatures then cold-rolling and annealing the same. CONSTITUTION:A steel slab contg. <0.20% C, <2.0% Si, 0.5-3.0% Mn, 0.030- 0.300% P, <0.020% S, 0.015-0.200% Al, and 0.0040-0.0200% N as well as either one or both of 0.01-0.10% V and 0.01-0.10% Nb, and further contg. one or two kinds of 0.30-0.05% Ti, <0.0050% Ca, <0.0050% Mg, <0.0050% rare earth elements such as La, Ce and others for the purpose of controlling the form of nonmetallic inclusions is hot-rolled at temperatures above the Ar3 transformation point and the hot-rolled steel sheet is wound to a coil at below 700 deg.C. Next, it is cold-rolled at >=30% drafts, after which it is annealed at temperatures below the recrystallization temp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55032382A JPS5858411B2 (en) | 1980-03-13 | 1980-03-13 | Manufacturing method of high tensile strength cold rolled steel sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55032382A JPS5858411B2 (en) | 1980-03-13 | 1980-03-13 | Manufacturing method of high tensile strength cold rolled steel sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56130430A true JPS56130430A (en) | 1981-10-13 |
| JPS5858411B2 JPS5858411B2 (en) | 1983-12-24 |
Family
ID=12357396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55032382A Expired JPS5858411B2 (en) | 1980-03-13 | 1980-03-13 | Manufacturing method of high tensile strength cold rolled steel sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5858411B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107604242A (en) * | 2017-08-02 | 2018-01-19 | 包头钢铁（集团）有限责任公司 | Cold rolled automobile sheet and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5030733A (en) * | 1973-07-21 | 1975-03-27 | ||
| JPS535610A (en) * | 1976-07-05 | 1978-01-19 | Hitachi Ltd | Error correction method |
| JPS5421811A (en) * | 1977-07-20 | 1979-02-19 | Matsushita Electric Ind Co Ltd | Magnetic recorder-reproducer |
| JPS5441985A (en) * | 1977-09-09 | 1979-04-03 | Mitsui Petrochem Ind Ltd | Polymerization or copolymerization of olefin |
-
1980
- 1980-03-13 JP JP55032382A patent/JPS5858411B2/en not_active Expired
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5030733A (en) * | 1973-07-21 | 1975-03-27 | ||
| JPS535610A (en) * | 1976-07-05 | 1978-01-19 | Hitachi Ltd | Error correction method |
| JPS5421811A (en) * | 1977-07-20 | 1979-02-19 | Matsushita Electric Ind Co Ltd | Magnetic recorder-reproducer |
| JPS5441985A (en) * | 1977-09-09 | 1979-04-03 | Mitsui Petrochem Ind Ltd | Polymerization or copolymerization of olefin |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107604242A (en) * | 2017-08-02 | 2018-01-19 | 包头钢铁（集团）有限责任公司 | Cold rolled automobile sheet and preparation method thereof |
| CN107604242B (en) * | 2017-08-02 | 2020-02-21 | 包头钢铁（集团）有限责任公司 | Cold-rolled automobile sheet and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5858411B2 (en) | 1983-12-24 |
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