Ferritic steel sheet excellent at strain rate sensitivity of the flow stress, and automobile utilizing it
US6432228B1 · kind B1 · utility
1Cited by
1References
8Claims
0Family size
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Key dates
| Filing date | Jul 28, 2000 |
| Grant date | Aug 13, 2002 |
| Priority date | — |
| Expiry date | Jul 28, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C38/38
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention provides a ferritic steel sheet, the quasi-static strength of which is enhanced and further the dynamic strength of which is not lowered. There is provided a ferritic steel sheet excellent at strain rate sensitivity characterized in that: Co and/or Cr are contained at pot less than 0.01 mass % and not more than 4.0 mass % in total in the state of solid solution in the ferrite phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.