JPS57123920A - Production of structural steel - Google Patents
Production of structural steelInfo
- Publication number
- JPS57123920A JPS57123920A JP719381A JP719381A JPS57123920A JP S57123920 A JPS57123920 A JP S57123920A JP 719381 A JP719381 A JP 719381A JP 719381 A JP719381 A JP 719381A JP S57123920 A JPS57123920 A JP S57123920A
- Authority
- JP
- Japan
- Prior art keywords
- amts
- steel
- hot
- structural steel
- working
- 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 Steel (AREA)
Abstract
PURPOSE: To produce a steel material for machine structure of superior toughness without performing any heat treatment by hot-working steel contg. specific range of amts. of C, Si, Mn, N and a limited amt. or below of V or Nb.
CONSTITUTION: Steel contg. 0.30W0.60% C, 0.10W2.0% Si, 0.20W1.70% Mn, 0.005W0.020% N, and ≥1 kind of ≤0.50% V, and ≤0.50% Nb, and consisting substantially of the balance Fe is heated to ≥950°C, after which its hot working is started and the hot working is executed in such a way that its end temp. is below 800°C; thereafter, it is cooled at 1W100°C/min rates, whereby structural steel is obtained. The respective elements mentioned above are added at the amts. limited for the purpose of assuring strength and for deoxidation effect. The high strength is achieved by adding ≥1 kind of ≤3.50 Ni, ≤2.0% Cr, and ≤0.70% Mo in addn. to the above, and it is possible to include some amts. of Cu, Pb, etc. in order to improve weather resistance and machineability.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP719381A JPS57123920A (en) | 1981-01-22 | 1981-01-22 | Production of structural steel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP719381A JPS57123920A (en) | 1981-01-22 | 1981-01-22 | Production of structural steel |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57123920A true JPS57123920A (en) | 1982-08-02 |
JPS6214606B2 JPS6214606B2 (en) | 1987-04-03 |
Family
ID=11659193
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP719381A Granted JPS57123920A (en) | 1981-01-22 | 1981-01-22 | Production of structural steel |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57123920A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59133320A (en) * | 1983-01-18 | 1984-07-31 | Mazda Motor Corp | Manufacture of shaft member with superior strength and wear resistance |
JPS61175239A (en) * | 1985-01-30 | 1986-08-06 | Mazda Motor Corp | Supercharger of engine |
JPS62199750A (en) * | 1986-02-27 | 1987-09-03 | Nippon Steel Corp | Unrefined steel bar having superior toughness and its manufacture |
JPS62287013A (en) * | 1986-06-03 | 1987-12-12 | Kobe Steel Ltd | Manufacture of non-heat treated steel bar |
JPS63199848A (en) * | 1987-02-16 | 1988-08-18 | Kobe Steel Ltd | Non-heattreated steel for hot forging having excellent fatigue resistance and machinability |
US5041167A (en) * | 1988-12-03 | 1991-08-20 | Mazda Motor Corporation | Method of making steel member |
JP2009228051A (en) * | 2008-03-21 | 2009-10-08 | Jfe Steel Corp | Method for producing non-heattreated steel material |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102070065B1 (en) | 2018-03-14 | 2020-03-02 | 엘지전자 주식회사 | Cyclone type dust collector and Cleaner having the same |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5524953A (en) * | 1978-08-11 | 1980-02-22 | Daido Steel Co Ltd | Not thermally refined high strength steel |
-
1981
- 1981-01-22 JP JP719381A patent/JPS57123920A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5524953A (en) * | 1978-08-11 | 1980-02-22 | Daido Steel Co Ltd | Not thermally refined high strength steel |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59133320A (en) * | 1983-01-18 | 1984-07-31 | Mazda Motor Corp | Manufacture of shaft member with superior strength and wear resistance |
JPH0159334B2 (en) * | 1983-01-18 | 1989-12-15 | Mazda Motor | |
JPS61175239A (en) * | 1985-01-30 | 1986-08-06 | Mazda Motor Corp | Supercharger of engine |
JPS62199750A (en) * | 1986-02-27 | 1987-09-03 | Nippon Steel Corp | Unrefined steel bar having superior toughness and its manufacture |
JPH0425343B2 (en) * | 1986-02-27 | 1992-04-30 | Nippon Steel Corp | |
JPS62287013A (en) * | 1986-06-03 | 1987-12-12 | Kobe Steel Ltd | Manufacture of non-heat treated steel bar |
JPS63199848A (en) * | 1987-02-16 | 1988-08-18 | Kobe Steel Ltd | Non-heattreated steel for hot forging having excellent fatigue resistance and machinability |
US5041167A (en) * | 1988-12-03 | 1991-08-20 | Mazda Motor Corporation | Method of making steel member |
JP2009228051A (en) * | 2008-03-21 | 2009-10-08 | Jfe Steel Corp | Method for producing non-heattreated steel material |
Also Published As
Publication number | Publication date |
---|---|
JPS6214606B2 (en) | 1987-04-03 |
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