JPS5524975A - Producing method of stainless steel for spring use having good punching and age-hardening properties - Google Patents
Producing method of stainless steel for spring use having good punching and age-hardening propertiesInfo
- Publication number
- JPS5524975A JPS5524975A JP9853778A JP9853778A JPS5524975A JP S5524975 A JPS5524975 A JP S5524975A JP 9853778 A JP9853778 A JP 9853778A JP 9853778 A JP9853778 A JP 9853778A JP S5524975 A JPS5524975 A JP S5524975A
- Authority
- JP
- Japan
- Prior art keywords
- stainless steel
- adjusting
- age
- producing method
- steel
- 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
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
- C21D9/02—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for springs
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 Steel (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
PURPOSE:To provide stainless steel having small directional spring characteristic, steel cosisting of C, N, Si, Mn, Ni, Cr, Cu, Ti, Al, the remaining Fe, and unavoidable impurities with each amount of metals being in specific relations is annealed to remove strain and cold rolled at a specified condition prior to ageing treatment. CONSTITUTION:Stainless steel for spring use consists of C <=0.06%, N <=0.03%, Si 0.1 to 2.5%, Mn <=3%, Ni 5 to 9%, Cr 14 to 17%, Cu 0.1 to 2.5%, Ti 0.3 to 1,3%, Al <= 1%, the remaining Fe, and unavoidable impurities and each amount of metals is adjusted to meet the following conditions. Such steel is annealed to remove strain and treated for 50 to 80% cold rolling prior to ageing treatment. The conditions for metal amounts are: value A in the formula I is to be less than 39% by adjusting Mn, Ni, Cr, Cu and Al, Cr-equivalent/Ni-equivalent in the formula II is to be less than 2.7 by adjusting Mn, Ni, Cu, Cr, Ti, Al and Si, and value H in the formula III is to be 5.5 to 8.5 by adjusting C, N, Al, Si, and Cu.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9853778A JPS5524975A (en) | 1978-08-12 | 1978-08-12 | Producing method of stainless steel for spring use having good punching and age-hardening properties |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9853778A JPS5524975A (en) | 1978-08-12 | 1978-08-12 | Producing method of stainless steel for spring use having good punching and age-hardening properties |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5524975A true JPS5524975A (en) | 1980-02-22 |
| JPS5724054B2 JPS5724054B2 (en) | 1982-05-21 |
Family
ID=14222427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9853778A Granted JPS5524975A (en) | 1978-08-12 | 1978-08-12 | Producing method of stainless steel for spring use having good punching and age-hardening properties |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5524975A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2479784A1 (en) * | 1980-04-03 | 1981-10-09 | Nisshin Steel Co Ltd | METAL CONVEYOR BELT AND PROCESS FOR PRODUCING THE SAME |
| JPS60152660A (en) * | 1984-01-23 | 1985-08-10 | Nisshin Steel Co Ltd | Precipitation hardening martensitic stainless steel |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3176403B2 (en) * | 1991-12-20 | 2001-06-18 | 新日本製鐵株式会社 | High strength stainless steel foil for corrugating and method for producing the same |
-
1978
- 1978-08-12 JP JP9853778A patent/JPS5524975A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2479784A1 (en) * | 1980-04-03 | 1981-10-09 | Nisshin Steel Co Ltd | METAL CONVEYOR BELT AND PROCESS FOR PRODUCING THE SAME |
| JPS60152660A (en) * | 1984-01-23 | 1985-08-10 | Nisshin Steel Co Ltd | Precipitation hardening martensitic stainless steel |
| JPH045726B2 (en) * | 1984-01-23 | 1992-02-03 | Nisshin Steel Co Ltd |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5724054B2 (en) | 1982-05-21 |
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