JPS6439326A - Production of steel wire for non-tempered high-strength spring - Google Patents
Production of steel wire for non-tempered high-strength springInfo
- Publication number
- JPS6439326A JPS6439326A JP19546387A JP19546387A JPS6439326A JP S6439326 A JPS6439326 A JP S6439326A JP 19546387 A JP19546387 A JP 19546387A JP 19546387 A JP19546387 A JP 19546387A JP S6439326 A JPS6439326 A JP S6439326A
- Authority
- JP
- Japan
- Prior art keywords
- strength
- steel
- rolling
- cooling
- steel wire
- 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
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/525—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length for wire, for rods
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 Strip Materials And Filament Materials (AREA)
Abstract
PURPOSE:To produce a steel wire for non-tempered high-strength springs by subjecting a steel consisting of C, Si, Mn, Cr, Mo, V, Nb, and Fe to hot rolling then to force cooling to convert the entire part of a wire rod to martensite structure. CONSTITUTION:The steel contg. 0.15-0.35wt.% C, 1.0-3.0% Si, 0.3-3.0% Mn, and 0.7-5.0% Cr, contg. further at least one kind among 0.05-3.0% Mo, 0.01-1.0% V and 0.01-0.5% Nb and consisting of the balance Fe and inevitable impurities is hot rolled at the intermediate and finish rolling temps. preferably set at <=1,050 deg.C. Such hot rolled material is subjected to the force cooling by water cooling or blast cooling right after the rolling. The wire rod consisting of the martensite structure over the entire part is thereby obtd. The high- strength steel which has about 150kgf/mm<2> tensile strength without executing reheating such as hardening and tempering treatments, is about 150-230kgf/mm<2> in tensile strength after cold working or bluing treatment, has less fluctuating strength and has an excellent drawing value and resistance to permanent set in fatigue is thereby obtd.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19546387A JPS6439326A (en) | 1987-08-05 | 1987-08-05 | Production of steel wire for non-tempered high-strength spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19546387A JPS6439326A (en) | 1987-08-05 | 1987-08-05 | Production of steel wire for non-tempered high-strength spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6439326A true JPS6439326A (en) | 1989-02-09 |
Family
ID=16341495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19546387A Pending JPS6439326A (en) | 1987-08-05 | 1987-08-05 | Production of steel wire for non-tempered high-strength spring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6439326A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160053776A (en) * | 2014-11-03 | 2016-05-13 | 주식회사 포스코 | Steel wire rod having high strength and impact toughness, and method for manufacturing thereof |
| KR20160063554A (en) * | 2014-11-26 | 2016-06-07 | 주식회사 포스코 | Wire rod having high strength and impact toughness and method for manufacturing thereof |
-
1987
- 1987-08-05 JP JP19546387A patent/JPS6439326A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160053776A (en) * | 2014-11-03 | 2016-05-13 | 주식회사 포스코 | Steel wire rod having high strength and impact toughness, and method for manufacturing thereof |
| KR20160063554A (en) * | 2014-11-26 | 2016-06-07 | 주식회사 포스코 | Wire rod having high strength and impact toughness and method for manufacturing thereof |
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