JPS5635721A - Production of steel material of good cold workability - Google Patents
Production of steel material of good cold workabilityInfo
- Publication number
- JPS5635721A JPS5635721A JP6884680A JP6884680A JPS5635721A JP S5635721 A JPS5635721 A JP S5635721A JP 6884680 A JP6884680 A JP 6884680A JP 6884680 A JP6884680 A JP 6884680A JP S5635721 A JPS5635721 A JP S5635721A
- Authority
- JP
- Japan
- Prior art keywords
- steel material
- steel
- intermediate stage
- stage structure
- hot
- 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
Landscapes
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
PURPOSE: To spheroidize the carbide in steel uniformly in a short time to proper grain sizes and considerably improve the cold workability of steel materials by annealing the hot-rolled steel materials having intermediate stage structure at the specific temperature.
CONSTITUTION: A steel material contg. 0.20W0.50% carbon, 0.50W1.50% chromium and acid-soluble Al 0.005W0.10% is subjected to hot finish rolling, after which it is quickly cooled to a temperature of 550°CWMS point. The steel material thus made into intermediate stage structure is used as a blank material and this is annealed at a temperature range of 650°CWA1 transformation point. Namely, the hot-rolled steel material having the above-mentioned components and intermediate stage structure is charged directly into an annealing furnace without being subjected to drawing and heat treatment, whereby the carbide in the steel is spheroidized uniformly within a short time.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6884680A JPS5935410B2 (en) | 1980-05-26 | 1980-05-26 | Manufacturing method for steel materials with good cold workability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6884680A JPS5935410B2 (en) | 1980-05-26 | 1980-05-26 | Manufacturing method for steel materials with good cold workability |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1746675A Division JPS5192719A (en) | 1975-02-13 | 1975-02-13 | Reikankakoseino yoikozaino seizohoho |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5635721A true JPS5635721A (en) | 1981-04-08 |
| JPS5935410B2 JPS5935410B2 (en) | 1984-08-28 |
Family
ID=13385451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6884680A Expired JPS5935410B2 (en) | 1980-05-26 | 1980-05-26 | Manufacturing method for steel materials with good cold workability |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5935410B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6156201A (en) * | 1984-08-24 | 1986-03-20 | Ube Ind Ltd | Surface treatment of magnetic metallic powder |
-
1980
- 1980-05-26 JP JP6884680A patent/JPS5935410B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6156201A (en) * | 1984-08-24 | 1986-03-20 | Ube Ind Ltd | Surface treatment of magnetic metallic powder |
| JPH0148323B2 (en) * | 1984-08-24 | 1989-10-18 | Ube Industries |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5935410B2 (en) | 1984-08-28 |
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