CA2164579A1 - Lowly Decarburizable Spring Steel - Google Patents
Lowly Decarburizable Spring SteelInfo
- Publication number
- CA2164579A1 CA2164579A1 CA 2164579 CA2164579A CA2164579A1 CA 2164579 A1 CA2164579 A1 CA 2164579A1 CA 2164579 CA2164579 CA 2164579 CA 2164579 A CA2164579 A CA 2164579A CA 2164579 A1 CA2164579 A1 CA 2164579A1
- Authority
- CA
- Canada
- Prior art keywords
- spring steel
- decarburizable
- lowly
- decarburization
- spring
- 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 Articles (AREA)
- Springs (AREA)
Abstract
A lowly decarburizable spring steel comprises, on the weight basis, 0.40 to 0.70% of C, 0.15 to 2.50%
of Si, 0.40 to 1.20% of Mn, 0.005 to 0.100% of Al, 0.005 to 0.050% of S, at least one of 0.05 to 2.50% of Ni and 0.05 to 1.00% of Cu, optionally further at least one of 0.20 to 1.50% of Cu, 0.05 to 1.00% of Mo, 0.01 to 0.50% of V, 0.010 to 0.300% of Nb and 0.0005 to 0.0050% of B, and the balance consisting of Fe and unavoidable impurities. The spring steel can be remarkably lowered in decarburizability during hot working and heat treatment thereof without need of any decarburization-proofing agents and any specific heat treatment equipment. Accordingly, it has a very excellent effect that decarburization thereof can be remarkably decreased with a low cost when it is applied to a coil spring, a flat spring or a torsion bar.
of Si, 0.40 to 1.20% of Mn, 0.005 to 0.100% of Al, 0.005 to 0.050% of S, at least one of 0.05 to 2.50% of Ni and 0.05 to 1.00% of Cu, optionally further at least one of 0.20 to 1.50% of Cu, 0.05 to 1.00% of Mo, 0.01 to 0.50% of V, 0.010 to 0.300% of Nb and 0.0005 to 0.0050% of B, and the balance consisting of Fe and unavoidable impurities. The spring steel can be remarkably lowered in decarburizability during hot working and heat treatment thereof without need of any decarburization-proofing agents and any specific heat treatment equipment. Accordingly, it has a very excellent effect that decarburization thereof can be remarkably decreased with a low cost when it is applied to a coil spring, a flat spring or a torsion bar.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6-318469 | 1994-12-21 | ||
| JP31846994A JP3226737B2 (en) | 1994-12-21 | 1994-12-21 | Low decarburized spring steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2164579A1 true CA2164579A1 (en) | 1996-06-22 |
| CA2164579C CA2164579C (en) | 1999-07-13 |
Family
ID=18099470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2164579 Expired - Lifetime CA2164579C (en) | 1994-12-21 | 1995-12-06 | Lowly decarburizable spring steel |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3226737B2 (en) |
| CA (1) | CA2164579C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7850794B2 (en) | 2002-11-21 | 2010-12-14 | Mitsubishi Steel Mfg. Co., Ltd. | Spring steel with improved hardenability and pitting resistance |
| US8734599B2 (en) | 2006-10-11 | 2014-05-27 | Posco | Steel wire rod for high strength and high toughness spring having excellent cold workability, method for producing the same and method for producing spring by using the same |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006283049A (en) * | 2005-03-31 | 2006-10-19 | Sanyo Special Steel Co Ltd | Method for producing steel material |
| KR101115761B1 (en) * | 2008-12-26 | 2012-06-12 | 주식회사 포스코 | Steel restrained from surface decarborization and manufacturing method for the same |
| EP2816130B1 (en) | 2012-02-14 | 2017-07-05 | JFE Steel Corporation | Spring steel |
| US11059261B2 (en) | 2013-04-02 | 2021-07-13 | Toray Industries, Inc. | Sandwich laminate, sandwich structure and unified molded product using same and processes for producing both |
| CN111363976B (en) * | 2020-04-27 | 2021-11-05 | 江苏利淮钢铁有限公司 | Microalloyed steel with long service life, high strength and toughness for high-speed rail plate spring and production process thereof |
| CN112760570A (en) * | 2020-12-28 | 2021-05-07 | 武钢集团襄阳重型装备材料有限公司 | Novel 60Si2Mn spring flat steel and preparation method thereof |
| CN112853220A (en) * | 2021-01-08 | 2021-05-28 | 江苏省沙钢钢铁研究院有限公司 | Wire rod for 2000MPa grade spring and production method thereof |
-
1994
- 1994-12-21 JP JP31846994A patent/JP3226737B2/en not_active Expired - Lifetime
-
1995
- 1995-12-06 CA CA 2164579 patent/CA2164579C/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7850794B2 (en) | 2002-11-21 | 2010-12-14 | Mitsubishi Steel Mfg. Co., Ltd. | Spring steel with improved hardenability and pitting resistance |
| US8197614B2 (en) | 2002-11-21 | 2012-06-12 | Mitsubishi Steel Mfg. Co., Ltd. | Spring steel with improved hardenability and pitting resistance |
| US8337642B2 (en) | 2002-11-21 | 2012-12-25 | Mitsubishi Steel Mfg. Co., Ltd. | Spring steel with improved hardenability and pitting resistance |
| US8734599B2 (en) | 2006-10-11 | 2014-05-27 | Posco | Steel wire rod for high strength and high toughness spring having excellent cold workability, method for producing the same and method for producing spring by using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08176737A (en) | 1996-07-09 |
| CA2164579C (en) | 1999-07-13 |
| JP3226737B2 (en) | 2001-11-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20151207 |