JPS55133804A - Manufacture of wire rod and steel bar superior in mechanical property - Google Patents
Manufacture of wire rod and steel bar superior in mechanical propertyInfo
- Publication number
- JPS55133804A JPS55133804A JP4147479A JP4147479A JPS55133804A JP S55133804 A JPS55133804 A JP S55133804A JP 4147479 A JP4147479 A JP 4147479A JP 4147479 A JP4147479 A JP 4147479A JP S55133804 A JPS55133804 A JP S55133804A
- Authority
- JP
- Japan
- Prior art keywords
- wire rod
- steel bar
- mechanical property
- strength
- improved
- 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
Landscapes
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
PURPOSE: To manufacture the excellent wire rod and steel bar improved both of strength and ductility, by finishing the steel containing the specified amount of carbon through the hot rolling pass at the specified temperature range with 10% or higher reduction ratio of the finish rolling work.
CONSTITUTION: At hot rolling the steel containing 0.2W2.5% carbon into the wire rod and steel bar, the finish rolling is carried out through the hot rolling work at the temperature range 800W450°C with 10% or more reduction ratio of the finish rolling work; hereby, both of strength and ductility are improved, and the wire rod and steel bar superior in the mechanical property are manufactured. If the carbon content is less than 0.2%, the mechanical property is scarcely improved, and if it is not less than 2.5%, the improvement of strength is not recognized. If the lowest rolling temperature is lower than 450°C, the pearlite structure is not formed, and if it exceeds 800°C, the fine pearlite structure is not formed, so that the ductility and strength are not sufficiently improved.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4147479A JPS55133804A (en) | 1979-04-04 | 1979-04-04 | Manufacture of wire rod and steel bar superior in mechanical property |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4147479A JPS55133804A (en) | 1979-04-04 | 1979-04-04 | Manufacture of wire rod and steel bar superior in mechanical property |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55133804A true JPS55133804A (en) | 1980-10-18 |
Family
ID=12609351
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4147479A Pending JPS55133804A (en) | 1979-04-04 | 1979-04-04 | Manufacture of wire rod and steel bar superior in mechanical property |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55133804A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60183202A (en) * | 1984-03-01 | 1985-09-18 | Bridgestone Corp | Radial tire with high durability |
JPH0456727A (en) * | 1990-06-27 | 1992-02-24 | Nkk Corp | Production of high strength steel for reinforcing bar |
-
1979
- 1979-04-04 JP JP4147479A patent/JPS55133804A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60183202A (en) * | 1984-03-01 | 1985-09-18 | Bridgestone Corp | Radial tire with high durability |
US4628977A (en) * | 1984-03-01 | 1986-12-16 | Bridgestone Corporation | High-durable pneumatic radial tires |
JPH0456727A (en) * | 1990-06-27 | 1992-02-24 | Nkk Corp | Production of high strength steel for reinforcing bar |
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