High-strength stainless steel material in the form of a wheel rim and method for manufacturing the same
US7294212B2 · kind B2 · utility
1Cited by
3References
12Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 30, 2004 |
| Grant date | Nov 13, 2007 |
| Priority date | — |
| Expiry date | Apr 30, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2211/008
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Material for stainless steel sheets is heated to a temperature within a range of 850 to 1250° C. and cooled at a rate 1° C./s or faster, the material including 0.02% by mass or less of C, 1.0% by mass or less of Si, 2.0% by mass or less of Mn, 0.04% by mass or less of P, 0.01% by mass or less of S, 0.1% by mass or less of Al, 11% by mass or more but less than 17% by mass of Cr, 0.5% by mass or more but, less than 3.0% by mass of Ni, and 0.02% by mass or less of N, so as to satisfy specific relationships between the compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.