Grain-oriented electric steel sheet having superior magnetic property
US9997283B2 · kind B2 · utility
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6Claims
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Key dates
| Filing date | Dec 9, 2015 |
| Grant date | Jun 12, 2018 |
| Priority date | — |
| Expiry date | Jun 11, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2211/004
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Provided is a grain-oriented electric steel sheet having superior magnetic property and to a grain-oriented electric steel sheet including 2.0 to 4.5 weight % of Si, 0.001 to 0.10 weight % of C, 0.010 weight % or lower of Al, 0.08 weight % or lower of Mn, 0.005 weight % or lower of N, 0.002 to 0.050 weight % of S, the remainder being Fe and other unavoidable impurities. The steel sheet having been subjected to secondary recrystallization using at least any one of grain boundary-segregated elementary S and an FeS precipitate as a grain growth inhibitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.