JPS565957A - Cold working tool steel - Google Patents
Cold working tool steelInfo
- Publication number
- JPS565957A JPS565957A JP8074479A JP8074479A JPS565957A JP S565957 A JPS565957 A JP S565957A JP 8074479 A JP8074479 A JP 8074479A JP 8074479 A JP8074479 A JP 8074479A JP S565957 A JPS565957 A JP S565957A
- Authority
- JP
- Japan
- Prior art keywords
- machinability
- steel
- tool steel
- cold working
- molten 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
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
PURPOSE: To provide a cold working tool steel with improved mechanical anisotropy and superior machinability by adding S as a machinability imparting element to a tool steel and further adding Te corresponding to the S.
CONSTITUTION: ≤0.40% S as a machinability imparting element is added to a molten steel contg. 0.4W2.6% C, <2.0% Si, <3.0% Mn, <20% Cr and <10% Mo. At this time, ≤0.10% Te is added in a Te to S ratio of 0.04 or more to improve the form of sulfide inclusions in the molten steel so that at least 80% of the inclusions of not less than 2μ major axis have a major to minor axis ratio of 10 or more. Prior to the addition of Te, a nonoxidizing gas is blown into the molten steel to float and separate harmful oxide inclusions. By adding <4% Ni, <13% Co or one or more among <20% W, <5% V, <3% Nb and <0.5% Ti, the hardenability, heat resistance, etc. of the steel are enhanced. To further enhance the machinability a small amount of Pb, Se, Bi, Ca, etc. may be added before or after adding Te.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54080744A JPS582585B2 (en) | 1979-06-28 | 1979-06-28 | Cold work tool steel and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54080744A JPS582585B2 (en) | 1979-06-28 | 1979-06-28 | Cold work tool steel and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS565957A true JPS565957A (en) | 1981-01-22 |
| JPS582585B2 JPS582585B2 (en) | 1983-01-17 |
Family
ID=13726900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54080744A Expired JPS582585B2 (en) | 1979-06-28 | 1979-06-28 | Cold work tool steel and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS582585B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3744550A1 (en) * | 1987-03-12 | 1988-09-22 | Mitsubishi Metal Corp | FE-BASED SINTER ALLOY FOR INTERNAL COMBUSTION ENGINES AND METHOD FOR THE PRODUCTION THEREOF |
| CN100463998C (en) * | 2006-03-16 | 2009-02-25 | 沈阳东北大学冶金技术研究所 | High-strength abrasion-proof thermostable nano alloyed steel material and producing method thereof |
| JP5991564B2 (en) * | 2014-05-28 | 2016-09-14 | 日立金属株式会社 | Hot tool material and hot tool manufacturing method |
-
1979
- 1979-06-28 JP JP54080744A patent/JPS582585B2/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3744550A1 (en) * | 1987-03-12 | 1988-09-22 | Mitsubishi Metal Corp | FE-BASED SINTER ALLOY FOR INTERNAL COMBUSTION ENGINES AND METHOD FOR THE PRODUCTION THEREOF |
| CN100463998C (en) * | 2006-03-16 | 2009-02-25 | 沈阳东北大学冶金技术研究所 | High-strength abrasion-proof thermostable nano alloyed steel material and producing method thereof |
| JP5991564B2 (en) * | 2014-05-28 | 2016-09-14 | 日立金属株式会社 | Hot tool material and hot tool manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS582585B2 (en) | 1983-01-17 |
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