JPS6465245A - Steel for spring having excellent fatigue strength - Google Patents
Steel for spring having excellent fatigue strengthInfo
- Publication number
- JPS6465245A JPS6465245A JP22337687A JP22337687A JPS6465245A JP S6465245 A JPS6465245 A JP S6465245A JP 22337687 A JP22337687 A JP 22337687A JP 22337687 A JP22337687 A JP 22337687A JP S6465245 A JPS6465245 A JP S6465245A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- spring
- fatigue strength
- compsn
- obtd
- 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
- Springs (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
PURPOSE:To improve the fatigue strength of the titled steel by specifying the contents of Mo, Cr and Mn in a steel and furthermore adding optimum amounts of Nb and V to the steel, thereby activating a working heat treatment. CONSTITUTION:The steel for a spring is constituted of the compsn. contg., by weight, 0.57-0.70% C, 0.15-0.50% Si, 0.70-1.50% Mn, 0.70-1.50% Cr and 0.03-0.50% Mo, contg. one or two kinds between 0.03-0.50% V and 0.03-0.50% Nb and consisting of the balance Fe with the elements as impurities. In said compsn., Mo forms carbide in the steel and fines austenitic crystal grains to improve the durability thereof and simultaneously has the working of preventing the hardening cracks thereof. The effect of ausforming can easily be obtd. and excellent hardenability can be obtd. as well by increasing the C amount.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22337687A JPS6465245A (en) | 1987-09-07 | 1987-09-07 | Steel for spring having excellent fatigue strength |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22337687A JPS6465245A (en) | 1987-09-07 | 1987-09-07 | Steel for spring having excellent fatigue strength |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6465245A true JPS6465245A (en) | 1989-03-10 |
Family
ID=16797174
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22337687A Pending JPS6465245A (en) | 1987-09-07 | 1987-09-07 | Steel for spring having excellent fatigue strength |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6465245A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5827956A (en) * | 1981-08-11 | 1983-02-18 | Aichi Steel Works Ltd | Spring steel with superior wear resistance |
JPS6130653A (en) * | 1984-07-18 | 1986-02-12 | Daido Steel Co Ltd | High strength spring steel |
-
1987
- 1987-09-07 JP JP22337687A patent/JPS6465245A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5827956A (en) * | 1981-08-11 | 1983-02-18 | Aichi Steel Works Ltd | Spring steel with superior wear resistance |
JPS6130653A (en) * | 1984-07-18 | 1986-02-12 | Daido Steel Co Ltd | High strength spring steel |
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