Method of heat treating a cold rolled steel strip
US12264375B2 · kind B2 · utility
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21Claims
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Key dates
| Filing date | Jun 11, 2020 |
| Grant date | Apr 1, 2025 |
| Priority date | — |
| Expiry date | Jun 24, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2211/008
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of a heat treating a cold rolled steel strip includes the steps of soaking a cold rolled steel strip above (Ac3−20) for a certain soaking duration thereby obtaining a cold rolled steel strip having an austenitic microstructure; cooling the soaked steel strip to below Ms; heating and heat treating the cooled strip in the temperature range of Bs-Ms; and cooling the heat treated strip to ambient temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.