| 发明名称 |
RAILWAY CAR WHEEL |
| 摘要 |
A railway car wheel comprises a rim having a flange and a tread portion . The tread portion contains 0.35 - 0.55% C and has a Vickers hardness of at least 360 and comprises a bainite structure, a tempered martensite structure, or a mixture of both.
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| 申请公布号 |
CA2507286(A1) |
申请公布日期 |
2005.11.14 |
| 申请号 |
CA20052507286 |
申请日期 |
2005.05.13 |
| 申请人 |
SUMITOMO METAL INDUSTRIES, LTD. |
发明人 |
YAMAMOTO, TOMOAKI;UMINO, MASAHIDE;KATO, TAKANORI |
| 分类号 |
B60B17/00;C22C38/22;(IPC1-7):B60B17/00 |
主分类号 |
B60B17/00 |
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