JPS558442A - High speed tool steel - Google Patents
High speed tool steelInfo
- Publication number
- JPS558442A JPS558442A JP8052478A JP8052478A JPS558442A JP S558442 A JPS558442 A JP S558442A JP 8052478 A JP8052478 A JP 8052478A JP 8052478 A JP8052478 A JP 8052478A JP S558442 A JPS558442 A JP S558442A
- Authority
- JP
- Japan
- Prior art keywords
- high speed
- speed tool
- steel
- tool steel
- ratio
- 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
- Heat Treatment Of Steel (AREA)
Abstract
PURPOSE: To improve wear resistance, toughness, and machinability of high C-high speed tool steel, by decreasing V content and specifying simultaneously the ratio V/ (W+2Mo).
CONSTITUTION: The steel comprises, by weight, 0.8W1.2 % C, 0.1W0.6 % Si, 0.1W 0.6 % Mn, 3.0W5.0 % Cr, 1.0W3.0 % W, 7.0W10.0 % Mo, 2.2W2.8 % V, 4.0W 6.0 % Co, 0.01W0.10 % Zr, the balance being Fe and impurities, having a ratio by weight 0.15 ≥ V/(W+2Mo) ≥ 0.10. The high speed tool steel is easily melted and refined by a method used for other high speed tool steels, and is hot worked, i.e., forged, rolled in the same way as other high speed tool steels. The steel is softened by, after working, heat-treatment at 800W900°C and gradual cooling, and is hardened to HRC 63W68 by oil hardening at 1,160W1,250°C, then by tempering at 520W580°C.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8052478A JPS558442A (en) | 1978-07-04 | 1978-07-04 | High speed tool steel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8052478A JPS558442A (en) | 1978-07-04 | 1978-07-04 | High speed tool steel |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS558442A true JPS558442A (en) | 1980-01-22 |
Family
ID=13720696
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8052478A Pending JPS558442A (en) | 1978-07-04 | 1978-07-04 | High speed tool steel |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS558442A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0219455A (en) * | 1988-07-05 | 1990-01-23 | Mitsubishi Electric Corp | Thin film forming device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52120217A (en) * | 1976-04-02 | 1977-10-08 | Daido Steel Co Ltd | Modification of carbide in the mo high speed tool steel containing co |
-
1978
- 1978-07-04 JP JP8052478A patent/JPS558442A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52120217A (en) * | 1976-04-02 | 1977-10-08 | Daido Steel Co Ltd | Modification of carbide in the mo high speed tool steel containing co |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0219455A (en) * | 1988-07-05 | 1990-01-23 | Mitsubishi Electric Corp | Thin film forming device |
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