JPS5591959A - High-toughness low-alloy tool steel - Google Patents
High-toughness low-alloy tool steelInfo
- Publication number
- JPS5591959A JPS5591959A JP16271478A JP16271478A JPS5591959A JP S5591959 A JPS5591959 A JP S5591959A JP 16271478 A JP16271478 A JP 16271478A JP 16271478 A JP16271478 A JP 16271478A JP S5591959 A JPS5591959 A JP S5591959A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- tool steel
- toughness
- toughness low
- alloy tool
- 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 Steel (AREA)
Abstract
PURPOSE: To provide a high-toughness low-alloy high-speed tool steel with high temper hardness and a high Charpy impact value by combinedly adding C, Si, Mo, W, V, Nb and N to steel.
CONSTITUTION: The tool steel contains C 0.45W0.55%, Si 0.8W1.5%, Cr 3.0W 5.0%, W+Mo/2 1.25W2.0%, V 0.5W1.0%, Nb 0.1W0.3%, N 0.03W0.10% and Mn<0.6%. Since the austenite grains of this steel slowly grow even in a slow heating furnace such as an atmosphere heat hardening furnace or a vacuum heat hardening furnace, the mechanical properties are not deteriorated. In a usual rapid heating system such as salt bath, the steel also exhibits superior toughness and machinability.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16271478A JPS5591959A (en) | 1978-12-28 | 1978-12-28 | High-toughness low-alloy tool steel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16271478A JPS5591959A (en) | 1978-12-28 | 1978-12-28 | High-toughness low-alloy tool steel |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5591959A true JPS5591959A (en) | 1980-07-11 |
JPS5724063B2 JPS5724063B2 (en) | 1982-05-21 |
Family
ID=15759889
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16271478A Granted JPS5591959A (en) | 1978-12-28 | 1978-12-28 | High-toughness low-alloy tool steel |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5591959A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4459162A (en) * | 1979-12-03 | 1984-07-10 | Norstroem Lars Ake | Hot work steel |
JPS60190550A (en) * | 1984-03-12 | 1985-09-28 | Sanyo Tokushu Seikou Kk | High toughness die steel suitable for working in wide temperature range |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5380318A (en) * | 1976-12-27 | 1978-07-15 | Daido Steel Co Ltd | Hot tool steel with excellent high temperature strength |
-
1978
- 1978-12-28 JP JP16271478A patent/JPS5591959A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5380318A (en) * | 1976-12-27 | 1978-07-15 | Daido Steel Co Ltd | Hot tool steel with excellent high temperature strength |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4459162A (en) * | 1979-12-03 | 1984-07-10 | Norstroem Lars Ake | Hot work steel |
JPS60190550A (en) * | 1984-03-12 | 1985-09-28 | Sanyo Tokushu Seikou Kk | High toughness die steel suitable for working in wide temperature range |
JPH0362784B2 (en) * | 1984-03-12 | 1991-09-27 | Sanyo Special Steel Co Ltd |
Also Published As
Publication number | Publication date |
---|---|
JPS5724063B2 (en) | 1982-05-21 |
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