JPS57143465A - Steel for railroad wheel with superior wear resistance and cracking loss resistance - Google Patents
Steel for railroad wheel with superior wear resistance and cracking loss resistanceInfo
- Publication number
- JPS57143465A JPS57143465A JP2923081A JP2923081A JPS57143465A JP S57143465 A JPS57143465 A JP S57143465A JP 2923081 A JP2923081 A JP 2923081A JP 2923081 A JP2923081 A JP 2923081A JP S57143465 A JPS57143465 A JP S57143465A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- decided
- wear resistance
- resistance
- toughness
- 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
Abstract
PURPOSE: To obtain steel with enhanced wear resistance and superior cracking loss resistance by specifying the composition of a steel for a railroad wheel used after hardening and tempering the tread.
CONSTITUTION: This steel consists of 0.55W0.80% C, 0.40W1.20% Si, 0.60W1.20% Mn, 0.20W0.70% Cr and the balance essentially Fe. This steel has high strength (hardness, yield strength, tensile strength and fatigue strength) and is remarkably superior to an in-use steel in wear resistance. In addition, it has rather increased toughness and ductility (elongation, reduction of area, impact value and rupture toughness) and is superior to the in-use steel in cracking loss resistance. The lower limit of C is decided with respect to the wear resistance and strength, and more than the upper limit of C deteriorates the heat check resistance. The lower limit of Si is decided with respect to the wear resistance, and more than the upper limit of Si reduces the toughness. The lower limit of Mn is decided to prevent embrittlement due to S and to enhance the strength and toughness, and the upper limit of Mn is decided to enhance the hardenability and to prevent the formation of a structure other than pearlite. The lower limit of Cr is decided to strengthen the pearlite structure and to enhance the wear resistance, and the upper limit of Cr is decided to prevent the formation of a structure other than pearlite and the reduction of the toughness.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2923081A JPS57143465A (en) | 1981-02-27 | 1981-02-27 | Steel for railroad wheel with superior wear resistance and cracking loss resistance |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2923081A JPS57143465A (en) | 1981-02-27 | 1981-02-27 | Steel for railroad wheel with superior wear resistance and cracking loss resistance |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57143465A true JPS57143465A (en) | 1982-09-04 |
Family
ID=12270414
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2923081A Pending JPS57143465A (en) | 1981-02-27 | 1981-02-27 | Steel for railroad wheel with superior wear resistance and cracking loss resistance |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57143465A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5899516A (en) * | 1996-01-23 | 1999-05-04 | Sumitomo Metal Industries, Ltd. | Railway wheel and manufacturing method of the railway wheel |
CN104004968A (en) * | 2014-05-29 | 2014-08-27 | 马钢(集团)控股有限公司 | Wheel steel and wheel heat treatment method |
CN111235487A (en) * | 2020-03-23 | 2020-06-05 | 马鞍山钢铁股份有限公司 | Steel for long-life drill rod and production method thereof |
WO2022220237A1 (en) * | 2021-04-16 | 2022-10-20 | 日本製鉄株式会社 | Railroad wheel |
-
1981
- 1981-02-27 JP JP2923081A patent/JPS57143465A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5899516A (en) * | 1996-01-23 | 1999-05-04 | Sumitomo Metal Industries, Ltd. | Railway wheel and manufacturing method of the railway wheel |
CN104004968A (en) * | 2014-05-29 | 2014-08-27 | 马钢(集团)控股有限公司 | Wheel steel and wheel heat treatment method |
CN111235487A (en) * | 2020-03-23 | 2020-06-05 | 马鞍山钢铁股份有限公司 | Steel for long-life drill rod and production method thereof |
CN111235487B (en) * | 2020-03-23 | 2021-08-31 | 马鞍山钢铁股份有限公司 | Steel for long-life drill rod and production method thereof |
WO2022220237A1 (en) * | 2021-04-16 | 2022-10-20 | 日本製鉄株式会社 | Railroad wheel |
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